/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:20:47,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:20:47,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:20:47,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-17 23:20:47,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:20:47,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:20:47,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:20:47,596 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.epf [2022-01-17 23:20:47,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:20:47,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:20:47,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:20:47,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:20:47,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:20:47,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:20:47,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:20:47,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:20:47,613 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:20:47,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:20:47,613 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:20:47,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:20:47,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:20:47,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:20:47,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:20:47,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:20:47,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:20:47,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:20:47,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:20:47,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:20:47,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:20:47,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:20:47,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:20:47,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:20:47,620 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:20:47,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:20:47,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:20:47,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:20:47,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:20:47,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:20:47,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:20:47,817 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:20:47,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-17 23:20:47,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe689711d/3117b91f4bed4cc39f84ebb5a1f6082b/FLAGaae84bba0 [2022-01-17 23:20:48,317 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:20:48,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-17 23:20:48,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe689711d/3117b91f4bed4cc39f84ebb5a1f6082b/FLAGaae84bba0 [2022-01-17 23:20:48,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe689711d/3117b91f4bed4cc39f84ebb5a1f6082b [2022-01-17 23:20:48,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:20:48,646 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:20:48,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:20:48,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:20:48,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:20:48,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:20:48" (1/1) ... [2022-01-17 23:20:48,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a39bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:48, skipping insertion in model container [2022-01-17 23:20:48,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:20:48" (1/1) ... [2022-01-17 23:20:48,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:20:48,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:20:49,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-01-17 23:20:49,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:20:49,138 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:20:49,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-01-17 23:20:49,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:20:49,278 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:20:49,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49 WrapperNode [2022-01-17 23:20:49,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:20:49,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:20:49,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:20:49,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:20:49,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,351 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-01-17 23:20:49,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:20:49,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:20:49,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:20:49,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:20:49,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:20:49,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:20:49,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:20:49,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:20:49,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (1/1) ... [2022-01-17 23:20:49,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:20:49,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:20:49,437 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) [2022-01-17 23:20:49,459 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 [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-17 23:20:49,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:20:49,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:20:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-17 23:20:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-17 23:20:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:20:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:20:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:20:49,473 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:20:49,694 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:20:49,695 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:20:49,853 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:20:49,858 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:20:49,858 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:20:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:20:49 BoogieIcfgContainer [2022-01-17 23:20:49,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:20:49,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:20:49,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:20:49,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:20:49,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:20:48" (1/3) ... [2022-01-17 23:20:49,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a88af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:20:49, skipping insertion in model container [2022-01-17 23:20:49,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:20:49" (2/3) ... [2022-01-17 23:20:49,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a88af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:20:49, skipping insertion in model container [2022-01-17 23:20:49,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:20:49" (3/3) ... [2022-01-17 23:20:49,865 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-01-17 23:20:49,868 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:20:49,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:20:49,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-17 23:20:49,869 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:20:49,895 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,895 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,896 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,898 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,899 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,900 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,901 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,902 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,903 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,904 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,905 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,906 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,907 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,908 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,909 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,910 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,911 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,912 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,913 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,914 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,916 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,917 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,917 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,917 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,917 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,918 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,918 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,918 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,919 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:20:49,922 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-17 23:20:49,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:20:49,954 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 [2022-01-17 23:20:49,954 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-17 23:20:49,962 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 193 places, 195 transitions, 406 flow [2022-01-17 23:20:50,213 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-17 23:20:50,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:50,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:50,255 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)] === [2022-01-17 23:20:50,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-01-17 23:20:50,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:50,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509945862] [2022-01-17 23:20:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:50,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:50,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:50,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509945862] [2022-01-17 23:20:50,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509945862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:50,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:50,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:50,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547345695] [2022-01-17 23:20:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:50,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:50,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:50,655 INFO L87 Difference]: Start difference. First operand has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:50,858 INFO L93 Difference]: Finished difference Result 10869 states and 30539 transitions. [2022-01-17 23:20:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:20:50,860 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 [2022-01-17 23:20:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:50,908 INFO L225 Difference]: With dead ends: 10869 [2022-01-17 23:20:50,909 INFO L226 Difference]: Without dead ends: 8837 [2022-01-17 23:20:50,910 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 [2022-01-17 23:20:50,912 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 176 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:50,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 667 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:20:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8837 states. [2022-01-17 23:20:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8837 to 8834. [2022-01-17 23:20:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8834 states, 8827 states have (on average 2.8009516256938936) internal successors, (24724), 8833 states have internal predecessors, (24724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8834 states to 8834 states and 24724 transitions. [2022-01-17 23:20:51,199 INFO L78 Accepts]: Start accepts. Automaton has 8834 states and 24724 transitions. Word has length 45 [2022-01-17 23:20:51,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:51,201 INFO L470 AbstractCegarLoop]: Abstraction has 8834 states and 24724 transitions. [2022-01-17 23:20:51,201 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) [2022-01-17 23:20:51,202 INFO L276 IsEmpty]: Start isEmpty. Operand 8834 states and 24724 transitions. [2022-01-17 23:20:51,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-17 23:20:51,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:51,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:51,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:20:51,204 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)] === [2022-01-17 23:20:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:51,209 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-01-17 23:20:51,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:51,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012786293] [2022-01-17 23:20:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:51,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:51,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:51,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012786293] [2022-01-17 23:20:51,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012786293] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:51,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:51,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:51,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57426553] [2022-01-17 23:20:51,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:51,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:51,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:51,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:51,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:51,361 INFO L87 Difference]: Start difference. First operand 8834 states and 24724 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:51,512 INFO L93 Difference]: Finished difference Result 8839 states and 24729 transitions. [2022-01-17 23:20:51,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:20:51,512 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 [2022-01-17 23:20:51,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:51,555 INFO L225 Difference]: With dead ends: 8839 [2022-01-17 23:20:51,555 INFO L226 Difference]: Without dead ends: 8839 [2022-01-17 23:20:51,558 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 [2022-01-17 23:20:51,560 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 264 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:51,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 593 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:20:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8839 states. [2022-01-17 23:20:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8839 to 8832. [2022-01-17 23:20:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8832 states, 8826 states have (on average 2.8010423748017224) internal successors, (24722), 8831 states have internal predecessors, (24722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 24722 transitions. [2022-01-17 23:20:51,817 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 24722 transitions. Word has length 53 [2022-01-17 23:20:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:51,819 INFO L470 AbstractCegarLoop]: Abstraction has 8832 states and 24722 transitions. [2022-01-17 23:20:51,819 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) [2022-01-17 23:20:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 24722 transitions. [2022-01-17 23:20:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-17 23:20:51,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:51,826 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] [2022-01-17 23:20:51,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:20:51,826 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)] === [2022-01-17 23:20:51,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:51,827 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-01-17 23:20:51,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:51,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183649553] [2022-01-17 23:20:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:51,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:51,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:51,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183649553] [2022-01-17 23:20:51,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183649553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:51,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:51,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:51,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680948505] [2022-01-17 23:20:51,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:51,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:51,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:51,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:51,941 INFO L87 Difference]: Start difference. First operand 8832 states and 24722 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:52,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:52,228 INFO L93 Difference]: Finished difference Result 13049 states and 36406 transitions. [2022-01-17 23:20:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:20:52,228 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 [2022-01-17 23:20:52,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:52,261 INFO L225 Difference]: With dead ends: 13049 [2022-01-17 23:20:52,261 INFO L226 Difference]: Without dead ends: 13049 [2022-01-17 23:20:52,262 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 [2022-01-17 23:20:52,262 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 437 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:52,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 918 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:20:52,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13049 states. [2022-01-17 23:20:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13049 to 9829. [2022-01-17 23:20:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 9824 states have (on average 2.799979641693811) internal successors, (27507), 9828 states have internal predecessors, (27507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 27507 transitions. [2022-01-17 23:20:52,545 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 27507 transitions. Word has length 76 [2022-01-17 23:20:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:52,545 INFO L470 AbstractCegarLoop]: Abstraction has 9829 states and 27507 transitions. [2022-01-17 23:20:52,545 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) [2022-01-17 23:20:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 27507 transitions. [2022-01-17 23:20:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-17 23:20:52,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:52,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:52,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:20:52,548 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)] === [2022-01-17 23:20:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-01-17 23:20:52,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443173108] [2022-01-17 23:20:52,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:52,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:52,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443173108] [2022-01-17 23:20:52,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443173108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:52,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:52,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:20:52,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802041377] [2022-01-17 23:20:52,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:52,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:20:52,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:52,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:20:52,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:20:52,623 INFO L87 Difference]: Start difference. First operand 9829 states and 27507 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:52,844 INFO L93 Difference]: Finished difference Result 13885 states and 38577 transitions. [2022-01-17 23:20:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:20:52,844 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 [2022-01-17 23:20:52,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:52,930 INFO L225 Difference]: With dead ends: 13885 [2022-01-17 23:20:52,930 INFO L226 Difference]: Without dead ends: 11603 [2022-01-17 23:20:52,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:20:52,933 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 342 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:52,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 930 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:20:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11603 states. [2022-01-17 23:20:53,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11603 to 11281. [2022-01-17 23:20:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11281 states, 11277 states have (on average 2.7999467943602023) internal successors, (31575), 11280 states have internal predecessors, (31575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11281 states to 11281 states and 31575 transitions. [2022-01-17 23:20:53,183 INFO L78 Accepts]: Start accepts. Automaton has 11281 states and 31575 transitions. Word has length 84 [2022-01-17 23:20:53,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:53,183 INFO L470 AbstractCegarLoop]: Abstraction has 11281 states and 31575 transitions. [2022-01-17 23:20:53,183 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) [2022-01-17 23:20:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11281 states and 31575 transitions. [2022-01-17 23:20:53,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-17 23:20:53,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:53,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:53,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:20:53,194 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)] === [2022-01-17 23:20:53,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:53,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1165459750, now seen corresponding path program 1 times [2022-01-17 23:20:53,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:53,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906867091] [2022-01-17 23:20:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:53,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:53,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906867091] [2022-01-17 23:20:53,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906867091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:53,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:53,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-17 23:20:53,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537483508] [2022-01-17 23:20:53,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:53,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-17 23:20:53,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:53,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-17 23:20:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-17 23:20:53,258 INFO L87 Difference]: Start difference. First operand 11281 states and 31575 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:53,294 INFO L93 Difference]: Finished difference Result 3851 states and 10500 transitions. [2022-01-17 23:20:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-17 23:20:53,294 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 [2022-01-17 23:20:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:53,301 INFO L225 Difference]: With dead ends: 3851 [2022-01-17 23:20:53,301 INFO L226 Difference]: Without dead ends: 3851 [2022-01-17 23:20:53,301 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 [2022-01-17 23:20:53,302 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 187 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:53,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 648 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:20:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2022-01-17 23:20:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2022-01-17 23:20:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 2.7279812938425567) internal successors, (10500), 3850 states have internal predecessors, (10500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 10500 transitions. [2022-01-17 23:20:53,361 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 10500 transitions. Word has length 96 [2022-01-17 23:20:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:53,362 INFO L470 AbstractCegarLoop]: Abstraction has 3851 states and 10500 transitions. [2022-01-17 23:20:53,362 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) [2022-01-17 23:20:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 10500 transitions. [2022-01-17 23:20:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:20:53,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:53,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:53,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:20:53,370 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)] === [2022-01-17 23:20:53,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:53,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1948450374, now seen corresponding path program 1 times [2022-01-17 23:20:53,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:53,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714548281] [2022-01-17 23:20:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:53,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:53,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:53,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714548281] [2022-01-17 23:20:53,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714548281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:53,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:53,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:53,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789463939] [2022-01-17 23:20:53,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:53,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:53,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:53,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:53,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:53,945 INFO L87 Difference]: Start difference. First operand 3851 states and 10500 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:55,159 INFO L93 Difference]: Finished difference Result 4742 states and 12441 transitions. [2022-01-17 23:20:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:20:55,160 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:20:55,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:55,167 INFO L225 Difference]: With dead ends: 4742 [2022-01-17 23:20:55,168 INFO L226 Difference]: Without dead ends: 4742 [2022-01-17 23:20:55,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:20:55,169 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1030 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:55,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 2227 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:20:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4742 states. [2022-01-17 23:20:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 4108. [2022-01-17 23:20:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4106 states have (on average 2.6938626400389674) internal successors, (11061), 4107 states have internal predecessors, (11061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 11061 transitions. [2022-01-17 23:20:55,243 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 11061 transitions. Word has length 130 [2022-01-17 23:20:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:55,244 INFO L470 AbstractCegarLoop]: Abstraction has 4108 states and 11061 transitions. [2022-01-17 23:20:55,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 11061 transitions. [2022-01-17 23:20:55,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:20:55,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:55,252 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] [2022-01-17 23:20:55,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:20:55,252 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)] === [2022-01-17 23:20:55,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1606301884, now seen corresponding path program 2 times [2022-01-17 23:20:55,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:55,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334339801] [2022-01-17 23:20:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:55,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:55,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:55,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334339801] [2022-01-17 23:20:55,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334339801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:55,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:55,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:20:55,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013802279] [2022-01-17 23:20:55,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:55,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:20:55,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:55,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:20:55,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:20:55,745 INFO L87 Difference]: Start difference. First operand 4108 states and 11061 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:20:57,671 INFO L93 Difference]: Finished difference Result 17926 states and 47830 transitions. [2022-01-17 23:20:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:20:57,672 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:20:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:20:57,709 INFO L225 Difference]: With dead ends: 17926 [2022-01-17 23:20:57,709 INFO L226 Difference]: Without dead ends: 17926 [2022-01-17 23:20:57,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:20:57,712 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 2220 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:20:57,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2220 Valid, 2502 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:20:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17926 states. [2022-01-17 23:20:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17926 to 4470. [2022-01-17 23:20:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4470 states, 4468 states have (on average 2.665398388540734) internal successors, (11909), 4469 states have internal predecessors, (11909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4470 states to 4470 states and 11909 transitions. [2022-01-17 23:20:57,874 INFO L78 Accepts]: Start accepts. Automaton has 4470 states and 11909 transitions. Word has length 130 [2022-01-17 23:20:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:20:57,875 INFO L470 AbstractCegarLoop]: Abstraction has 4470 states and 11909 transitions. [2022-01-17 23:20:57,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:20:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 4470 states and 11909 transitions. [2022-01-17 23:20:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:20:57,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:20:57,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:20:57,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:20:57,885 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)] === [2022-01-17 23:20:57,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:20:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1404133928, now seen corresponding path program 3 times [2022-01-17 23:20:57,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:20:57,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396747493] [2022-01-17 23:20:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:20:57,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:20:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:20:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:20:58,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:20:58,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396747493] [2022-01-17 23:20:58,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396747493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:20:58,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:20:58,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:20:58,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928040604] [2022-01-17 23:20:58,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:20:58,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:20:58,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:20:58,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:20:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:20:58,608 INFO L87 Difference]: Start difference. First operand 4470 states and 11909 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:01,396 INFO L93 Difference]: Finished difference Result 14200 states and 37531 transitions. [2022-01-17 23:21:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:01,396 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:01,428 INFO L225 Difference]: With dead ends: 14200 [2022-01-17 23:21:01,428 INFO L226 Difference]: Without dead ends: 14200 [2022-01-17 23:21:01,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=552, Invalid=1610, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:01,429 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 1553 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:01,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 3399 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:01,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14200 states. [2022-01-17 23:21:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14200 to 4638. [2022-01-17 23:21:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4636 states have (on average 2.653364969801553) internal successors, (12301), 4637 states have internal predecessors, (12301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 12301 transitions. [2022-01-17 23:21:01,594 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 12301 transitions. Word has length 130 [2022-01-17 23:21:01,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:01,595 INFO L470 AbstractCegarLoop]: Abstraction has 4638 states and 12301 transitions. [2022-01-17 23:21:01,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:01,595 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 12301 transitions. [2022-01-17 23:21:01,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:01,606 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:01,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:01,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:21:01,606 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)] === [2022-01-17 23:21:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:01,607 INFO L85 PathProgramCache]: Analyzing trace with hash 30520042, now seen corresponding path program 4 times [2022-01-17 23:21:01,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:01,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491938321] [2022-01-17 23:21:01,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:01,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:02,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:02,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491938321] [2022-01-17 23:21:02,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491938321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:02,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:02,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:21:02,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221308320] [2022-01-17 23:21:02,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:02,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:21:02,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:21:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:21:02,239 INFO L87 Difference]: Start difference. First operand 4638 states and 12301 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:03,845 INFO L93 Difference]: Finished difference Result 13634 states and 36390 transitions. [2022-01-17 23:21:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:21:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:03,865 INFO L225 Difference]: With dead ends: 13634 [2022-01-17 23:21:03,865 INFO L226 Difference]: Without dead ends: 13634 [2022-01-17 23:21:03,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:21:03,866 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1767 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:03,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1767 Valid, 3640 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:21:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13634 states. [2022-01-17 23:21:03,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13634 to 4782. [2022-01-17 23:21:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.660460251046025) internal successors, (12717), 4781 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12717 transitions. [2022-01-17 23:21:03,988 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12717 transitions. Word has length 130 [2022-01-17 23:21:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:03,989 INFO L470 AbstractCegarLoop]: Abstraction has 4782 states and 12717 transitions. [2022-01-17 23:21:03,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12717 transitions. [2022-01-17 23:21:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:03,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:03,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:03,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-17 23:21:03,997 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)] === [2022-01-17 23:21:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1593429466, now seen corresponding path program 5 times [2022-01-17 23:21:03,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:03,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591637821] [2022-01-17 23:21:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:03,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:04,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:04,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591637821] [2022-01-17 23:21:04,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591637821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:04,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:04,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:04,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113591813] [2022-01-17 23:21:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:04,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:04,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:04,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:04,455 INFO L87 Difference]: Start difference. First operand 4782 states and 12717 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:06,181 INFO L93 Difference]: Finished difference Result 14548 states and 38438 transitions. [2022-01-17 23:21:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:21:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:06,202 INFO L225 Difference]: With dead ends: 14548 [2022-01-17 23:21:06,202 INFO L226 Difference]: Without dead ends: 14548 [2022-01-17 23:21:06,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:21:06,203 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1715 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:06,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 2534 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-01-17 23:21:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 4782. [2022-01-17 23:21:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.660460251046025) internal successors, (12717), 4781 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12717 transitions. [2022-01-17 23:21:06,343 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12717 transitions. Word has length 130 [2022-01-17 23:21:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:06,343 INFO L470 AbstractCegarLoop]: Abstraction has 4782 states and 12717 transitions. [2022-01-17 23:21:06,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:06,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12717 transitions. [2022-01-17 23:21:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:06,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:06,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:06,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-17 23:21:06,354 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)] === [2022-01-17 23:21:06,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1417006346, now seen corresponding path program 6 times [2022-01-17 23:21:06,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:06,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033392435] [2022-01-17 23:21:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:06,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:06,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:06,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033392435] [2022-01-17 23:21:06,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033392435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:06,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:06,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:21:06,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532227173] [2022-01-17 23:21:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:06,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:21:06,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:06,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:21:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:21:06,759 INFO L87 Difference]: Start difference. First operand 4782 states and 12717 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:07,770 INFO L93 Difference]: Finished difference Result 6484 states and 16379 transitions. [2022-01-17 23:21:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:07,770 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:07,779 INFO L225 Difference]: With dead ends: 6484 [2022-01-17 23:21:07,779 INFO L226 Difference]: Without dead ends: 6484 [2022-01-17 23:21:07,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=432, Invalid=1374, Unknown=0, NotChecked=0, Total=1806 [2022-01-17 23:21:07,780 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1159 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:07,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 1860 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6484 states. [2022-01-17 23:21:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 4962. [2022-01-17 23:21:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.6546370967741937) internal successors, (13167), 4961 states have internal predecessors, (13167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13167 transitions. [2022-01-17 23:21:07,860 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13167 transitions. Word has length 130 [2022-01-17 23:21:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:07,860 INFO L470 AbstractCegarLoop]: Abstraction has 4962 states and 13167 transitions. [2022-01-17 23:21:07,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13167 transitions. [2022-01-17 23:21:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:07,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:07,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:07,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-17 23:21:07,868 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)] === [2022-01-17 23:21:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1284450050, now seen corresponding path program 7 times [2022-01-17 23:21:07,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:07,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232692802] [2022-01-17 23:21:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:07,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:08,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:08,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232692802] [2022-01-17 23:21:08,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232692802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:08,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:08,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:08,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846519597] [2022-01-17 23:21:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:08,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:08,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:08,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:08,276 INFO L87 Difference]: Start difference. First operand 4962 states and 13167 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:10,118 INFO L93 Difference]: Finished difference Result 18160 states and 47567 transitions. [2022-01-17 23:21:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:21:10,118 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:10,144 INFO L225 Difference]: With dead ends: 18160 [2022-01-17 23:21:10,144 INFO L226 Difference]: Without dead ends: 18160 [2022-01-17 23:21:10,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:21:10,145 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1724 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:10,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1724 Valid, 2668 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:10,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18160 states. [2022-01-17 23:21:10,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18160 to 4964. [2022-01-17 23:21:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4962 states have (on average 2.6545747682386134) internal successors, (13172), 4963 states have internal predecessors, (13172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 13172 transitions. [2022-01-17 23:21:10,329 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 13172 transitions. Word has length 130 [2022-01-17 23:21:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:10,329 INFO L470 AbstractCegarLoop]: Abstraction has 4964 states and 13172 transitions. [2022-01-17 23:21:10,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:10,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 13172 transitions. [2022-01-17 23:21:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:10,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:10,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:10,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-17 23:21:10,337 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)] === [2022-01-17 23:21:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1311878072, now seen corresponding path program 8 times [2022-01-17 23:21:10,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:10,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940909474] [2022-01-17 23:21:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:10,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:11,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:11,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940909474] [2022-01-17 23:21:11,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940909474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:11,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:11,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:21:11,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516610484] [2022-01-17 23:21:11,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:11,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:21:11,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:11,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:21:11,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:21:11,096 INFO L87 Difference]: Start difference. First operand 4964 states and 13172 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:13,835 INFO L93 Difference]: Finished difference Result 15398 states and 40241 transitions. [2022-01-17 23:21:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:13,857 INFO L225 Difference]: With dead ends: 15398 [2022-01-17 23:21:13,857 INFO L226 Difference]: Without dead ends: 15398 [2022-01-17 23:21:13,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=553, Invalid=1609, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:21:13,858 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1437 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:13,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 3612 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:21:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15398 states. [2022-01-17 23:21:13,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15398 to 4962. [2022-01-17 23:21:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.6546370967741937) internal successors, (13167), 4961 states have internal predecessors, (13167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:13,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13167 transitions. [2022-01-17 23:21:13,979 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13167 transitions. Word has length 130 [2022-01-17 23:21:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:13,979 INFO L470 AbstractCegarLoop]: Abstraction has 4962 states and 13167 transitions. [2022-01-17 23:21:13,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13167 transitions. [2022-01-17 23:21:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:13,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:13,987 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] [2022-01-17 23:21:13,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-17 23:21:13,987 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)] === [2022-01-17 23:21:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:13,987 INFO L85 PathProgramCache]: Analyzing trace with hash -992543418, now seen corresponding path program 9 times [2022-01-17 23:21:13,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:13,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987226095] [2022-01-17 23:21:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:13,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:14,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:14,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987226095] [2022-01-17 23:21:14,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987226095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:14,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:14,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:14,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257772463] [2022-01-17 23:21:14,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:14,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:14,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:14,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:14,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:14,392 INFO L87 Difference]: Start difference. First operand 4962 states and 13167 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:15,407 INFO L93 Difference]: Finished difference Result 6432 states and 16523 transitions. [2022-01-17 23:21:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:15,416 INFO L225 Difference]: With dead ends: 6432 [2022-01-17 23:21:15,416 INFO L226 Difference]: Without dead ends: 6432 [2022-01-17 23:21:15,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:21:15,417 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1105 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:15,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 2841 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6432 states. [2022-01-17 23:21:15,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6432 to 5450. [2022-01-17 23:21:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.654919236417034) internal successors, (14464), 5449 states have internal predecessors, (14464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14464 transitions. [2022-01-17 23:21:15,487 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14464 transitions. Word has length 130 [2022-01-17 23:21:15,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:15,487 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14464 transitions. [2022-01-17 23:21:15,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:15,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14464 transitions. [2022-01-17 23:21:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:15,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:15,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:15,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-17 23:21:15,495 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)] === [2022-01-17 23:21:15,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1446310794, now seen corresponding path program 10 times [2022-01-17 23:21:15,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:15,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792062463] [2022-01-17 23:21:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:15,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:15,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:15,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792062463] [2022-01-17 23:21:15,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792062463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:15,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:15,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:15,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827675015] [2022-01-17 23:21:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:15,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:15,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:15,920 INFO L87 Difference]: Start difference. First operand 5450 states and 14464 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:17,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:17,930 INFO L93 Difference]: Finished difference Result 22008 states and 58157 transitions. [2022-01-17 23:21:17,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:21:17,930 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:17,963 INFO L225 Difference]: With dead ends: 22008 [2022-01-17 23:21:17,963 INFO L226 Difference]: Without dead ends: 22008 [2022-01-17 23:21:17,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:21:17,964 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 2174 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:17,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2174 Valid, 2303 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22008 states. [2022-01-17 23:21:18,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22008 to 5576. [2022-01-17 23:21:18,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5574 states have (on average 2.6602081090778613) internal successors, (14828), 5575 states have internal predecessors, (14828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 14828 transitions. [2022-01-17 23:21:18,126 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 14828 transitions. Word has length 130 [2022-01-17 23:21:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:18,126 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 14828 transitions. [2022-01-17 23:21:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 14828 transitions. [2022-01-17 23:21:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:18,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:18,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:18,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-17 23:21:18,135 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)] === [2022-01-17 23:21:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1601093370, now seen corresponding path program 11 times [2022-01-17 23:21:18,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:18,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099133947] [2022-01-17 23:21:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:18,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:18,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:18,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099133947] [2022-01-17 23:21:18,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099133947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:18,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:18,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:18,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680988890] [2022-01-17 23:21:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:18,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:18,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:18,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:18,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:18,495 INFO L87 Difference]: Start difference. First operand 5576 states and 14828 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:19,611 INFO L93 Difference]: Finished difference Result 19360 states and 51404 transitions. [2022-01-17 23:21:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:19,611 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:19,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:19,639 INFO L225 Difference]: With dead ends: 19360 [2022-01-17 23:21:19,639 INFO L226 Difference]: Without dead ends: 19360 [2022-01-17 23:21:19,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:19,640 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1817 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:19,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1817 Valid, 2340 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19360 states. [2022-01-17 23:21:19,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19360 to 5772. [2022-01-17 23:21:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.669324090121317) internal successors, (15402), 5771 states have internal predecessors, (15402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15402 transitions. [2022-01-17 23:21:19,785 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15402 transitions. Word has length 130 [2022-01-17 23:21:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:19,785 INFO L470 AbstractCegarLoop]: Abstraction has 5772 states and 15402 transitions. [2022-01-17 23:21:19,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:19,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15402 transitions. [2022-01-17 23:21:19,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:19,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:19,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:19,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-17 23:21:19,794 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)] === [2022-01-17 23:21:19,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:19,794 INFO L85 PathProgramCache]: Analyzing trace with hash 837459304, now seen corresponding path program 12 times [2022-01-17 23:21:19,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:19,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295345430] [2022-01-17 23:21:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:19,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:20,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:20,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295345430] [2022-01-17 23:21:20,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295345430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:20,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:20,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:20,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775548377] [2022-01-17 23:21:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:20,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:20,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:20,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:20,195 INFO L87 Difference]: Start difference. First operand 5772 states and 15402 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:21,242 INFO L93 Difference]: Finished difference Result 8608 states and 22531 transitions. [2022-01-17 23:21:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:21,243 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:21,255 INFO L225 Difference]: With dead ends: 8608 [2022-01-17 23:21:21,255 INFO L226 Difference]: Without dead ends: 8608 [2022-01-17 23:21:21,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:21:21,256 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 942 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:21,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 2654 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:21,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2022-01-17 23:21:21,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 5912. [2022-01-17 23:21:21,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.672419627749577) internal successors, (15794), 5911 states have internal predecessors, (15794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15794 transitions. [2022-01-17 23:21:21,341 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15794 transitions. Word has length 130 [2022-01-17 23:21:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:21,342 INFO L470 AbstractCegarLoop]: Abstraction has 5912 states and 15794 transitions. [2022-01-17 23:21:21,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:21,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15794 transitions. [2022-01-17 23:21:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:21,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:21,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:21,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-17 23:21:21,349 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)] === [2022-01-17 23:21:21,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:21,350 INFO L85 PathProgramCache]: Analyzing trace with hash 919780514, now seen corresponding path program 13 times [2022-01-17 23:21:21,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:21,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010066512] [2022-01-17 23:21:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:21,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:21,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:21,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010066512] [2022-01-17 23:21:21,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010066512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:21,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:21,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:21,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762802541] [2022-01-17 23:21:21,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:21,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:21,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:21,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:21,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:21,740 INFO L87 Difference]: Start difference. First operand 5912 states and 15794 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:22,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:22,660 INFO L93 Difference]: Finished difference Result 7391 states and 18983 transitions. [2022-01-17 23:21:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:22,661 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:22,670 INFO L225 Difference]: With dead ends: 7391 [2022-01-17 23:21:22,670 INFO L226 Difference]: Without dead ends: 7391 [2022-01-17 23:21:22,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:21:22,671 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 809 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:22,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 2121 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2022-01-17 23:21:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 5916. [2022-01-17 23:21:22,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5914 states have (on average 2.672303009807237) internal successors, (15804), 5915 states have internal predecessors, (15804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 15804 transitions. [2022-01-17 23:21:22,764 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 15804 transitions. Word has length 130 [2022-01-17 23:21:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:22,764 INFO L470 AbstractCegarLoop]: Abstraction has 5916 states and 15804 transitions. [2022-01-17 23:21:22,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 15804 transitions. [2022-01-17 23:21:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:22,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:22,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:22,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-17 23:21:22,771 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)] === [2022-01-17 23:21:22,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1370139768, now seen corresponding path program 14 times [2022-01-17 23:21:22,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:22,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608290596] [2022-01-17 23:21:22,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:22,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:23,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:23,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:23,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608290596] [2022-01-17 23:21:23,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608290596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:23,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:23,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:21:23,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936993809] [2022-01-17 23:21:23,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:23,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:21:23,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:21:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:21:23,207 INFO L87 Difference]: Start difference. First operand 5916 states and 15804 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:24,631 INFO L93 Difference]: Finished difference Result 18230 states and 48215 transitions. [2022-01-17 23:21:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:21:24,632 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:24,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:24,659 INFO L225 Difference]: With dead ends: 18230 [2022-01-17 23:21:24,659 INFO L226 Difference]: Without dead ends: 18230 [2022-01-17 23:21:24,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:21:24,661 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1629 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:24,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 3851 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18230 states. [2022-01-17 23:21:24,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18230 to 5844. [2022-01-17 23:21:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 5842 states have (on average 2.673228346456693) internal successors, (15617), 5843 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 15617 transitions. [2022-01-17 23:21:24,806 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 15617 transitions. Word has length 130 [2022-01-17 23:21:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:24,806 INFO L470 AbstractCegarLoop]: Abstraction has 5844 states and 15617 transitions. [2022-01-17 23:21:24,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 15617 transitions. [2022-01-17 23:21:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:24,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:24,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:24,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-17 23:21:24,813 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)] === [2022-01-17 23:21:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2084764312, now seen corresponding path program 15 times [2022-01-17 23:21:24,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:24,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920307427] [2022-01-17 23:21:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:24,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:25,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:25,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920307427] [2022-01-17 23:21:25,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920307427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:25,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:25,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:21:25,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456279055] [2022-01-17 23:21:25,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:25,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:21:25,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:21:25,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:21:25,635 INFO L87 Difference]: Start difference. First operand 5844 states and 15617 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:28,988 INFO L93 Difference]: Finished difference Result 14716 states and 38676 transitions. [2022-01-17 23:21:28,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:21:28,989 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:28,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:29,010 INFO L225 Difference]: With dead ends: 14716 [2022-01-17 23:21:29,010 INFO L226 Difference]: Without dead ends: 14716 [2022-01-17 23:21:29,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2022-01-17 23:21:29,011 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1329 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:29,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 4645 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:21:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14716 states. [2022-01-17 23:21:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14716 to 5840. [2022-01-17 23:21:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5840 states, 5838 states have (on average 2.673347036656389) internal successors, (15607), 5839 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:29,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 15607 transitions. [2022-01-17 23:21:29,140 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 15607 transitions. Word has length 130 [2022-01-17 23:21:29,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:29,141 INFO L470 AbstractCegarLoop]: Abstraction has 5840 states and 15607 transitions. [2022-01-17 23:21:29,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:29,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 15607 transitions. [2022-01-17 23:21:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:29,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:29,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-17 23:21:29,149 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)] === [2022-01-17 23:21:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2071891894, now seen corresponding path program 16 times [2022-01-17 23:21:29,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:29,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86664683] [2022-01-17 23:21:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:29,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:29,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:29,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86664683] [2022-01-17 23:21:29,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86664683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:29,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:29,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:21:29,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771705924] [2022-01-17 23:21:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:29,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:21:29,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:29,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:21:29,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:21:29,581 INFO L87 Difference]: Start difference. First operand 5840 states and 15607 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:30,718 INFO L93 Difference]: Finished difference Result 7480 states and 19141 transitions. [2022-01-17 23:21:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:21:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:30,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:30,736 INFO L225 Difference]: With dead ends: 7480 [2022-01-17 23:21:30,736 INFO L226 Difference]: Without dead ends: 7480 [2022-01-17 23:21:30,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=425, Invalid=1381, Unknown=0, NotChecked=0, Total=1806 [2022-01-17 23:21:30,737 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 892 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:30,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [892 Valid, 2191 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:30,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2022-01-17 23:21:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 5888. [2022-01-17 23:21:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 5886 states have (on average 2.6715936119605845) internal successors, (15725), 5887 states have internal predecessors, (15725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 15725 transitions. [2022-01-17 23:21:30,838 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 15725 transitions. Word has length 130 [2022-01-17 23:21:30,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:30,838 INFO L470 AbstractCegarLoop]: Abstraction has 5888 states and 15725 transitions. [2022-01-17 23:21:30,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 15725 transitions. [2022-01-17 23:21:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:30,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:30,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:30,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-17 23:21:30,846 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)] === [2022-01-17 23:21:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1334229154, now seen corresponding path program 17 times [2022-01-17 23:21:30,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:30,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906058575] [2022-01-17 23:21:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:30,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:31,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:31,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:31,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906058575] [2022-01-17 23:21:31,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906058575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:31,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:31,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:31,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232840996] [2022-01-17 23:21:31,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:31,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:31,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:31,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:31,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:31,245 INFO L87 Difference]: Start difference. First operand 5888 states and 15725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:32,879 INFO L93 Difference]: Finished difference Result 17408 states and 46247 transitions. [2022-01-17 23:21:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:32,914 INFO L225 Difference]: With dead ends: 17408 [2022-01-17 23:21:32,914 INFO L226 Difference]: Without dead ends: 17408 [2022-01-17 23:21:32,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:21:32,915 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1511 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:32,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 2332 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17408 states. [2022-01-17 23:21:33,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17408 to 5968. [2022-01-17 23:21:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5968 states, 5966 states have (on average 2.673985920214549) internal successors, (15953), 5967 states have internal predecessors, (15953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5968 states to 5968 states and 15953 transitions. [2022-01-17 23:21:33,067 INFO L78 Accepts]: Start accepts. Automaton has 5968 states and 15953 transitions. Word has length 130 [2022-01-17 23:21:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:33,067 INFO L470 AbstractCegarLoop]: Abstraction has 5968 states and 15953 transitions. [2022-01-17 23:21:33,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5968 states and 15953 transitions. [2022-01-17 23:21:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:33,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:33,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:33,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-17 23:21:33,074 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)] === [2022-01-17 23:21:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:33,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1262098968, now seen corresponding path program 18 times [2022-01-17 23:21:33,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:33,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528537663] [2022-01-17 23:21:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:33,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:33,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:33,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528537663] [2022-01-17 23:21:33,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528537663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:33,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:33,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:33,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117631764] [2022-01-17 23:21:33,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:33,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:33,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:33,455 INFO L87 Difference]: Start difference. First operand 5968 states and 15953 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:34,907 INFO L93 Difference]: Finished difference Result 17300 states and 45939 transitions. [2022-01-17 23:21:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:34,938 INFO L225 Difference]: With dead ends: 17300 [2022-01-17 23:21:34,939 INFO L226 Difference]: Without dead ends: 17300 [2022-01-17 23:21:34,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:21:34,940 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1591 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:34,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 2321 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17300 states. [2022-01-17 23:21:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17300 to 5948. [2022-01-17 23:21:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 5946 states have (on average 2.6733938782374707) internal successors, (15896), 5947 states have internal predecessors, (15896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 15896 transitions. [2022-01-17 23:21:35,093 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 15896 transitions. Word has length 130 [2022-01-17 23:21:35,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:35,093 INFO L470 AbstractCegarLoop]: Abstraction has 5948 states and 15896 transitions. [2022-01-17 23:21:35,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:35,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 15896 transitions. [2022-01-17 23:21:35,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:35,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:35,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:35,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-17 23:21:35,101 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)] === [2022-01-17 23:21:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:35,101 INFO L85 PathProgramCache]: Analyzing trace with hash -14535836, now seen corresponding path program 19 times [2022-01-17 23:21:35,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:35,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054637929] [2022-01-17 23:21:35,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:35,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:35,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:35,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054637929] [2022-01-17 23:21:35,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054637929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:35,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:35,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:21:35,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33987137] [2022-01-17 23:21:35,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:35,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:21:35,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:35,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:21:35,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:21:35,553 INFO L87 Difference]: Start difference. First operand 5948 states and 15896 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:36,967 INFO L93 Difference]: Finished difference Result 17632 states and 46895 transitions. [2022-01-17 23:21:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:21:36,967 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:36,993 INFO L225 Difference]: With dead ends: 17632 [2022-01-17 23:21:36,993 INFO L226 Difference]: Without dead ends: 17632 [2022-01-17 23:21:36,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:21:36,994 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1508 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:36,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 3679 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:37,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17632 states. [2022-01-17 23:21:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17632 to 5908. [2022-01-17 23:21:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6721977649847615) internal successors, (15782), 5907 states have internal predecessors, (15782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15782 transitions. [2022-01-17 23:21:37,144 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15782 transitions. Word has length 130 [2022-01-17 23:21:37,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:37,144 INFO L470 AbstractCegarLoop]: Abstraction has 5908 states and 15782 transitions. [2022-01-17 23:21:37,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15782 transitions. [2022-01-17 23:21:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:37,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:37,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:37,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-17 23:21:37,152 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)] === [2022-01-17 23:21:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:37,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1189452956, now seen corresponding path program 20 times [2022-01-17 23:21:37,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:37,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978026232] [2022-01-17 23:21:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:37,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:37,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:37,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978026232] [2022-01-17 23:21:37,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978026232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:37,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:37,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:37,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900341076] [2022-01-17 23:21:37,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:37,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:37,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:37,497 INFO L87 Difference]: Start difference. First operand 5908 states and 15782 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:38,585 INFO L93 Difference]: Finished difference Result 14286 states and 38160 transitions. [2022-01-17 23:21:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:38,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:38,606 INFO L225 Difference]: With dead ends: 14286 [2022-01-17 23:21:38,606 INFO L226 Difference]: Without dead ends: 14286 [2022-01-17 23:21:38,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:38,607 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1297 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:38,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 2588 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14286 states. [2022-01-17 23:21:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14286 to 6016. [2022-01-17 23:21:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6016 states, 6014 states have (on average 2.6760891253741272) internal successors, (16094), 6015 states have internal predecessors, (16094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 16094 transitions. [2022-01-17 23:21:38,723 INFO L78 Accepts]: Start accepts. Automaton has 6016 states and 16094 transitions. Word has length 130 [2022-01-17 23:21:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:38,723 INFO L470 AbstractCegarLoop]: Abstraction has 6016 states and 16094 transitions. [2022-01-17 23:21:38,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6016 states and 16094 transitions. [2022-01-17 23:21:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:38,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:38,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:38,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-17 23:21:38,730 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)] === [2022-01-17 23:21:38,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1397465820, now seen corresponding path program 21 times [2022-01-17 23:21:38,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:38,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364612873] [2022-01-17 23:21:38,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:38,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:39,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:39,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364612873] [2022-01-17 23:21:39,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364612873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:39,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:39,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:39,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131528836] [2022-01-17 23:21:39,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:39,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:39,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:39,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:39,096 INFO L87 Difference]: Start difference. First operand 6016 states and 16094 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:40,633 INFO L93 Difference]: Finished difference Result 16978 states and 45065 transitions. [2022-01-17 23:21:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:40,634 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:40,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:40,656 INFO L225 Difference]: With dead ends: 16978 [2022-01-17 23:21:40,656 INFO L226 Difference]: Without dead ends: 16978 [2022-01-17 23:21:40,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:21:40,657 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1385 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:40,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 2330 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:40,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16978 states. [2022-01-17 23:21:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16978 to 6188. [2022-01-17 23:21:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6188 states, 6186 states have (on average 2.6813773035887487) internal successors, (16587), 6187 states have internal predecessors, (16587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6188 states to 6188 states and 16587 transitions. [2022-01-17 23:21:40,788 INFO L78 Accepts]: Start accepts. Automaton has 6188 states and 16587 transitions. Word has length 130 [2022-01-17 23:21:40,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:40,788 INFO L470 AbstractCegarLoop]: Abstraction has 6188 states and 16587 transitions. [2022-01-17 23:21:40,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:40,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6188 states and 16587 transitions. [2022-01-17 23:21:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:40,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:40,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:40,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-17 23:21:40,796 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)] === [2022-01-17 23:21:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash 301173354, now seen corresponding path program 22 times [2022-01-17 23:21:40,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:40,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291085015] [2022-01-17 23:21:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:40,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:41,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:41,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291085015] [2022-01-17 23:21:41,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291085015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:41,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:41,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:41,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349427286] [2022-01-17 23:21:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:41,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:41,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:41,174 INFO L87 Difference]: Start difference. First operand 6188 states and 16587 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:42,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:42,305 INFO L93 Difference]: Finished difference Result 16870 states and 44757 transitions. [2022-01-17 23:21:42,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:42,306 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:42,329 INFO L225 Difference]: With dead ends: 16870 [2022-01-17 23:21:42,329 INFO L226 Difference]: Without dead ends: 16870 [2022-01-17 23:21:42,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:42,330 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1388 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:42,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 2637 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16870 states. [2022-01-17 23:21:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16870 to 6168. [2022-01-17 23:21:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:42,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-17 23:21:42,463 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-17 23:21:42,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:42,464 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-17 23:21:42,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:42,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-17 23:21:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:42,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:42,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:42,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-17 23:21:42,472 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)] === [2022-01-17 23:21:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1548736486, now seen corresponding path program 23 times [2022-01-17 23:21:42,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:42,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938089474] [2022-01-17 23:21:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:42,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:42,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:42,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938089474] [2022-01-17 23:21:42,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938089474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:42,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:42,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:42,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432337697] [2022-01-17 23:21:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:42,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:42,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:42,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:42,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:42,852 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:44,488 INFO L93 Difference]: Finished difference Result 14368 states and 38202 transitions. [2022-01-17 23:21:44,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:44,489 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:44,510 INFO L225 Difference]: With dead ends: 14368 [2022-01-17 23:21:44,510 INFO L226 Difference]: Without dead ends: 14368 [2022-01-17 23:21:44,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:21:44,511 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1440 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:44,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2344 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14368 states. [2022-01-17 23:21:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14368 to 6128. [2022-01-17 23:21:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6128 states, 6126 states have (on average 2.679725759059745) internal successors, (16416), 6127 states have internal predecessors, (16416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6128 states to 6128 states and 16416 transitions. [2022-01-17 23:21:44,630 INFO L78 Accepts]: Start accepts. Automaton has 6128 states and 16416 transitions. Word has length 130 [2022-01-17 23:21:44,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:44,630 INFO L470 AbstractCegarLoop]: Abstraction has 6128 states and 16416 transitions. [2022-01-17 23:21:44,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:44,630 INFO L276 IsEmpty]: Start isEmpty. Operand 6128 states and 16416 transitions. [2022-01-17 23:21:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:44,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:44,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:44,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-17 23:21:44,638 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)] === [2022-01-17 23:21:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 239356106, now seen corresponding path program 24 times [2022-01-17 23:21:44,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:44,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902711668] [2022-01-17 23:21:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:44,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:45,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:45,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902711668] [2022-01-17 23:21:45,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902711668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:45,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:45,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:45,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739430413] [2022-01-17 23:21:45,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:45,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:45,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:45,018 INFO L87 Difference]: Start difference. First operand 6128 states and 16416 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:46,141 INFO L93 Difference]: Finished difference Result 17166 states and 45637 transitions. [2022-01-17 23:21:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:46,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:46,165 INFO L225 Difference]: With dead ends: 17166 [2022-01-17 23:21:46,166 INFO L226 Difference]: Without dead ends: 17166 [2022-01-17 23:21:46,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:46,166 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1477 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:46,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 2384 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:46,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17166 states. [2022-01-17 23:21:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17166 to 6168. [2022-01-17 23:21:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-17 23:21:46,310 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-17 23:21:46,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:46,311 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-17 23:21:46,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-17 23:21:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:46,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:46,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:46,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-17 23:21:46,318 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)] === [2022-01-17 23:21:46,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1384593402, now seen corresponding path program 25 times [2022-01-17 23:21:46,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990015606] [2022-01-17 23:21:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:46,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:46,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:46,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990015606] [2022-01-17 23:21:46,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990015606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:46,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:46,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:46,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581555] [2022-01-17 23:21:46,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:46,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:46,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:46,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:46,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:46,666 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:47,929 INFO L93 Difference]: Finished difference Result 18132 states and 47789 transitions. [2022-01-17 23:21:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:47,929 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:47,956 INFO L225 Difference]: With dead ends: 18132 [2022-01-17 23:21:47,956 INFO L226 Difference]: Without dead ends: 18132 [2022-01-17 23:21:47,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:47,957 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1280 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:47,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 2733 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:47,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18132 states. [2022-01-17 23:21:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18132 to 6148. [2022-01-17 23:21:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6146 states have (on average 2.6802798568174424) internal successors, (16473), 6147 states have internal predecessors, (16473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 16473 transitions. [2022-01-17 23:21:48,103 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 16473 transitions. Word has length 130 [2022-01-17 23:21:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:48,103 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 16473 transitions. [2022-01-17 23:21:48,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 16473 transitions. [2022-01-17 23:21:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:48,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:48,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:48,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-17 23:21:48,110 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)] === [2022-01-17 23:21:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:48,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1493286114, now seen corresponding path program 26 times [2022-01-17 23:21:48,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:48,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285862107] [2022-01-17 23:21:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:48,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:48,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:48,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:48,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285862107] [2022-01-17 23:21:48,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285862107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:48,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:48,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:48,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902491635] [2022-01-17 23:21:48,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:48,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:48,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:48,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:48,476 INFO L87 Difference]: Start difference. First operand 6148 states and 16473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:50,220 INFO L93 Difference]: Finished difference Result 19944 states and 52104 transitions. [2022-01-17 23:21:50,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:21:50,221 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:50,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:50,251 INFO L225 Difference]: With dead ends: 19944 [2022-01-17 23:21:50,251 INFO L226 Difference]: Without dead ends: 19944 [2022-01-17 23:21:50,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:21:50,252 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1600 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 2737 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:50,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1600 Valid, 2737 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19944 states. [2022-01-17 23:21:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19944 to 6168. [2022-01-17 23:21:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-17 23:21:50,399 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-17 23:21:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:50,399 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-17 23:21:50,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-17 23:21:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:50,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:50,406 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] [2022-01-17 23:21:50,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-17 23:21:50,406 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)] === [2022-01-17 23:21:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:50,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1103042008, now seen corresponding path program 27 times [2022-01-17 23:21:50,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27470259] [2022-01-17 23:21:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:50,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:50,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:50,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27470259] [2022-01-17 23:21:50,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27470259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:50,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:50,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:21:50,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802379630] [2022-01-17 23:21:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:50,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:21:50,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:50,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:21:50,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:21:50,859 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:52,328 INFO L93 Difference]: Finished difference Result 16660 states and 43654 transitions. [2022-01-17 23:21:52,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:21:52,329 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:52,351 INFO L225 Difference]: With dead ends: 16660 [2022-01-17 23:21:52,351 INFO L226 Difference]: Without dead ends: 16660 [2022-01-17 23:21:52,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:21:52,352 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1243 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:52,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 4197 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:21:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16660 states. [2022-01-17 23:21:52,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16660 to 6088. [2022-01-17 23:21:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6088 states, 6086 states have (on average 2.6786066381860008) internal successors, (16302), 6087 states have internal predecessors, (16302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6088 states to 6088 states and 16302 transitions. [2022-01-17 23:21:52,473 INFO L78 Accepts]: Start accepts. Automaton has 6088 states and 16302 transitions. Word has length 130 [2022-01-17 23:21:52,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:52,473 INFO L470 AbstractCegarLoop]: Abstraction has 6088 states and 16302 transitions. [2022-01-17 23:21:52,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6088 states and 16302 transitions. [2022-01-17 23:21:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:52,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:52,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:52,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-17 23:21:52,480 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)] === [2022-01-17 23:21:52,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:52,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1756997454, now seen corresponding path program 28 times [2022-01-17 23:21:52,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:52,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116835914] [2022-01-17 23:21:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:52,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:52,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:52,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116835914] [2022-01-17 23:21:52,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116835914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:52,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:52,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:52,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66837842] [2022-01-17 23:21:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:52,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:52,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:52,863 INFO L87 Difference]: Start difference. First operand 6088 states and 16302 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:53,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:53,744 INFO L93 Difference]: Finished difference Result 7595 states and 19617 transitions. [2022-01-17 23:21:53,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:21:53,745 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:53,755 INFO L225 Difference]: With dead ends: 7595 [2022-01-17 23:21:53,755 INFO L226 Difference]: Without dead ends: 7595 [2022-01-17 23:21:53,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:21:53,756 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 870 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:53,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 2297 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2022-01-17 23:21:53,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 6186. [2022-01-17 23:21:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.674320827943079) internal successors, (16538), 6185 states have internal predecessors, (16538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:53,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16538 transitions. [2022-01-17 23:21:53,835 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16538 transitions. Word has length 130 [2022-01-17 23:21:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:53,835 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16538 transitions. [2022-01-17 23:21:53,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16538 transitions. [2022-01-17 23:21:53,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:53,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:53,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:53,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-17 23:21:53,843 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)] === [2022-01-17 23:21:53,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:53,843 INFO L85 PathProgramCache]: Analyzing trace with hash 455737776, now seen corresponding path program 29 times [2022-01-17 23:21:53,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:53,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695959189] [2022-01-17 23:21:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:53,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:54,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:54,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695959189] [2022-01-17 23:21:54,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695959189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:54,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:54,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:54,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509369059] [2022-01-17 23:21:54,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:54,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:54,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:54,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:54,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:54,208 INFO L87 Difference]: Start difference. First operand 6186 states and 16538 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:55,318 INFO L93 Difference]: Finished difference Result 10690 states and 28525 transitions. [2022-01-17 23:21:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:55,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:55,333 INFO L225 Difference]: With dead ends: 10690 [2022-01-17 23:21:55,333 INFO L226 Difference]: Without dead ends: 10690 [2022-01-17 23:21:55,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:55,333 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1144 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:55,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 2293 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:55,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-01-17 23:21:55,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 6466. [2022-01-17 23:21:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-17 23:21:55,429 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-17 23:21:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:55,429 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-17 23:21:55,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:55,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-17 23:21:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:55,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:55,437 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] [2022-01-17 23:21:55,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-17 23:21:55,437 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)] === [2022-01-17 23:21:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash 6107764, now seen corresponding path program 30 times [2022-01-17 23:21:55,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36970610] [2022-01-17 23:21:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:55,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:55,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:55,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36970610] [2022-01-17 23:21:55,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36970610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:55,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:55,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:21:55,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787339167] [2022-01-17 23:21:55,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:55,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:21:55,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:21:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:21:55,779 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:56,883 INFO L93 Difference]: Finished difference Result 13558 states and 36022 transitions. [2022-01-17 23:21:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:21:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:56,902 INFO L225 Difference]: With dead ends: 13558 [2022-01-17 23:21:56,903 INFO L226 Difference]: Without dead ends: 13558 [2022-01-17 23:21:56,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:21:56,903 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1313 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:56,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 2344 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:21:56,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13558 states. [2022-01-17 23:21:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13558 to 6486. [2022-01-17 23:21:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 6484 states have (on average 2.6846082665021593) internal successors, (17407), 6485 states have internal predecessors, (17407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:57,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 17407 transitions. [2022-01-17 23:21:57,064 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 17407 transitions. Word has length 130 [2022-01-17 23:21:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:57,065 INFO L470 AbstractCegarLoop]: Abstraction has 6486 states and 17407 transitions. [2022-01-17 23:21:57,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 17407 transitions. [2022-01-17 23:21:57,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:57,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:57,075 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] [2022-01-17 23:21:57,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-17 23:21:57,075 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)] === [2022-01-17 23:21:57,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1617841744, now seen corresponding path program 31 times [2022-01-17 23:21:57,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:57,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023153943] [2022-01-17 23:21:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:57,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:57,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:57,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:57,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023153943] [2022-01-17 23:21:57,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023153943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:57,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:57,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:21:57,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220842219] [2022-01-17 23:21:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:57,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:21:57,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:57,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:21:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:21:57,525 INFO L87 Difference]: Start difference. First operand 6486 states and 17407 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:21:59,178 INFO L93 Difference]: Finished difference Result 11732 states and 30872 transitions. [2022-01-17 23:21:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:21:59,179 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:21:59,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:21:59,193 INFO L225 Difference]: With dead ends: 11732 [2022-01-17 23:21:59,194 INFO L226 Difference]: Without dead ends: 11732 [2022-01-17 23:21:59,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:21:59,194 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1487 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:21:59,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2242 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:21:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11732 states. [2022-01-17 23:21:59,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11732 to 6466. [2022-01-17 23:21:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-17 23:21:59,301 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-17 23:21:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:21:59,302 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-17 23:21:59,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:21:59,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-17 23:21:59,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:21:59,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:21:59,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:21:59,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-17 23:21:59,310 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)] === [2022-01-17 23:21:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:21:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash 936763258, now seen corresponding path program 32 times [2022-01-17 23:21:59,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:21:59,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094724487] [2022-01-17 23:21:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:21:59,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:21:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:21:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:21:59,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:21:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094724487] [2022-01-17 23:21:59,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094724487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:21:59,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:21:59,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:21:59,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530971063] [2022-01-17 23:21:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:21:59,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:21:59,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:21:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:21:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:21:59,726 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:01,183 INFO L93 Difference]: Finished difference Result 15030 states and 39591 transitions. [2022-01-17 23:22:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:01,184 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:01,206 INFO L225 Difference]: With dead ends: 15030 [2022-01-17 23:22:01,206 INFO L226 Difference]: Without dead ends: 15030 [2022-01-17 23:22:01,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:01,207 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1319 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:01,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 3742 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:01,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15030 states. [2022-01-17 23:22:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15030 to 6506. [2022-01-17 23:22:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6504 states have (on average 2.6851168511685115) internal successors, (17464), 6505 states have internal predecessors, (17464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17464 transitions. [2022-01-17 23:22:01,347 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17464 transitions. Word has length 130 [2022-01-17 23:22:01,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:01,347 INFO L470 AbstractCegarLoop]: Abstraction has 6506 states and 17464 transitions. [2022-01-17 23:22:01,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17464 transitions. [2022-01-17 23:22:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:01,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:01,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:01,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-17 23:22:01,354 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)] === [2022-01-17 23:22:01,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash -687186250, now seen corresponding path program 33 times [2022-01-17 23:22:01,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:01,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912377418] [2022-01-17 23:22:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:01,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:01,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:01,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912377418] [2022-01-17 23:22:01,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912377418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:01,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:01,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:01,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178826573] [2022-01-17 23:22:01,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:01,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:01,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:01,981 INFO L87 Difference]: Start difference. First operand 6506 states and 17464 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:04,604 INFO L93 Difference]: Finished difference Result 12405 states and 32062 transitions. [2022-01-17 23:22:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:04,620 INFO L225 Difference]: With dead ends: 12405 [2022-01-17 23:22:04,621 INFO L226 Difference]: Without dead ends: 12405 [2022-01-17 23:22:04,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:04,622 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1316 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:04,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 3101 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:04,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12405 states. [2022-01-17 23:22:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12405 to 6572. [2022-01-17 23:22:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6572 states, 6570 states have (on average 2.6832572298325723) internal successors, (17629), 6571 states have internal predecessors, (17629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 17629 transitions. [2022-01-17 23:22:04,738 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 17629 transitions. Word has length 130 [2022-01-17 23:22:04,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:04,738 INFO L470 AbstractCegarLoop]: Abstraction has 6572 states and 17629 transitions. [2022-01-17 23:22:04,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 17629 transitions. [2022-01-17 23:22:04,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:04,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:04,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:04,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-17 23:22:04,746 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)] === [2022-01-17 23:22:04,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:04,747 INFO L85 PathProgramCache]: Analyzing trace with hash -2104274030, now seen corresponding path program 34 times [2022-01-17 23:22:04,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:04,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712215072] [2022-01-17 23:22:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:04,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:05,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:05,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712215072] [2022-01-17 23:22:05,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712215072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:05,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:05,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:05,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481451035] [2022-01-17 23:22:05,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:05,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:05,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:05,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:05,136 INFO L87 Difference]: Start difference. First operand 6572 states and 17629 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:06,754 INFO L93 Difference]: Finished difference Result 16826 states and 44379 transitions. [2022-01-17 23:22:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:06,776 INFO L225 Difference]: With dead ends: 16826 [2022-01-17 23:22:06,777 INFO L226 Difference]: Without dead ends: 16826 [2022-01-17 23:22:06,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:22:06,777 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1438 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:06,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1438 Valid, 2627 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16826 states. [2022-01-17 23:22:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16826 to 6592. [2022-01-17 23:22:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6590 states have (on average 2.683763277693475) internal successors, (17686), 6591 states have internal predecessors, (17686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 17686 transitions. [2022-01-17 23:22:06,910 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 17686 transitions. Word has length 130 [2022-01-17 23:22:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:06,910 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 17686 transitions. [2022-01-17 23:22:06,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 17686 transitions. [2022-01-17 23:22:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:06,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:06,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:06,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-17 23:22:06,919 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)] === [2022-01-17 23:22:06,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:06,919 INFO L85 PathProgramCache]: Analyzing trace with hash -405634856, now seen corresponding path program 35 times [2022-01-17 23:22:06,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:06,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864273662] [2022-01-17 23:22:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:06,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:07,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:07,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864273662] [2022-01-17 23:22:07,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864273662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:07,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:07,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:07,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686962887] [2022-01-17 23:22:07,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:07,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:07,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:07,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:07,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:07,263 INFO L87 Difference]: Start difference. First operand 6592 states and 17686 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:08,854 INFO L93 Difference]: Finished difference Result 13926 states and 36877 transitions. [2022-01-17 23:22:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:08,854 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:08,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:08,873 INFO L225 Difference]: With dead ends: 13926 [2022-01-17 23:22:08,873 INFO L226 Difference]: Without dead ends: 13926 [2022-01-17 23:22:08,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:22:08,874 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1365 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:08,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 2314 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13926 states. [2022-01-17 23:22:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13926 to 6572. [2022-01-17 23:22:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6572 states, 6570 states have (on average 2.6832572298325723) internal successors, (17629), 6571 states have internal predecessors, (17629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 17629 transitions. [2022-01-17 23:22:08,986 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 17629 transitions. Word has length 130 [2022-01-17 23:22:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:08,986 INFO L470 AbstractCegarLoop]: Abstraction has 6572 states and 17629 transitions. [2022-01-17 23:22:08,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 17629 transitions. [2022-01-17 23:22:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:08,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:08,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:08,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-17 23:22:08,994 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)] === [2022-01-17 23:22:08,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:08,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1801668470, now seen corresponding path program 36 times [2022-01-17 23:22:08,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:08,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907320202] [2022-01-17 23:22:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:08,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:09,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:09,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907320202] [2022-01-17 23:22:09,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907320202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:09,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:09,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:09,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133668963] [2022-01-17 23:22:09,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:09,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:09,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:09,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:09,360 INFO L87 Difference]: Start difference. First operand 6572 states and 17629 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:11,005 INFO L93 Difference]: Finished difference Result 14740 states and 38000 transitions. [2022-01-17 23:22:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:11,005 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:11,026 INFO L225 Difference]: With dead ends: 14740 [2022-01-17 23:22:11,027 INFO L226 Difference]: Without dead ends: 14740 [2022-01-17 23:22:11,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:22:11,027 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1418 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:11,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 2421 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:11,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14740 states. [2022-01-17 23:22:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14740 to 6466. [2022-01-17 23:22:11,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-17 23:22:11,149 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-17 23:22:11,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:11,149 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-17 23:22:11,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-17 23:22:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:11,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:11,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:11,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-17 23:22:11,181 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)] === [2022-01-17 23:22:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:11,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1008664802, now seen corresponding path program 37 times [2022-01-17 23:22:11,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:11,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142139016] [2022-01-17 23:22:11,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:11,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:11,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:11,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142139016] [2022-01-17 23:22:11,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142139016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:11,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:11,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:11,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723545449] [2022-01-17 23:22:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:11,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:11,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:11,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:11,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:11,566 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:12,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:12,957 INFO L93 Difference]: Finished difference Result 16722 states and 44343 transitions. [2022-01-17 23:22:12,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:12,957 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:12,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:12,981 INFO L225 Difference]: With dead ends: 16722 [2022-01-17 23:22:12,981 INFO L226 Difference]: Without dead ends: 16722 [2022-01-17 23:22:12,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:12,982 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1339 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:12,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 3639 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:13,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16722 states. [2022-01-17 23:22:13,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16722 to 6580. [2022-01-17 23:22:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6578 states have (on average 2.6872909698996654) internal successors, (17677), 6579 states have internal predecessors, (17677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 17677 transitions. [2022-01-17 23:22:13,122 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 17677 transitions. Word has length 130 [2022-01-17 23:22:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:13,122 INFO L470 AbstractCegarLoop]: Abstraction has 6580 states and 17677 transitions. [2022-01-17 23:22:13,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 17677 transitions. [2022-01-17 23:22:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:13,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:13,130 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] [2022-01-17 23:22:13,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-17 23:22:13,131 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)] === [2022-01-17 23:22:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1587663320, now seen corresponding path program 38 times [2022-01-17 23:22:13,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:13,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954282790] [2022-01-17 23:22:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:13,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:13,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:13,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954282790] [2022-01-17 23:22:13,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954282790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:13,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:13,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:13,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888977436] [2022-01-17 23:22:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:13,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:13,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:13,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:13,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:13,462 INFO L87 Difference]: Start difference. First operand 6580 states and 17677 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:14,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:14,996 INFO L93 Difference]: Finished difference Result 16614 states and 44035 transitions. [2022-01-17 23:22:14,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:14,996 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:14,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:15,022 INFO L225 Difference]: With dead ends: 16614 [2022-01-17 23:22:15,023 INFO L226 Difference]: Without dead ends: 16614 [2022-01-17 23:22:15,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:22:15,023 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1236 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:15,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 2427 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:15,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16614 states. [2022-01-17 23:22:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16614 to 6560. [2022-01-17 23:22:15,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6560 states, 6558 states have (on average 2.686794754498323) internal successors, (17620), 6559 states have internal predecessors, (17620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6560 states to 6560 states and 17620 transitions. [2022-01-17 23:22:15,171 INFO L78 Accepts]: Start accepts. Automaton has 6560 states and 17620 transitions. Word has length 130 [2022-01-17 23:22:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:15,171 INFO L470 AbstractCegarLoop]: Abstraction has 6560 states and 17620 transitions. [2022-01-17 23:22:15,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 6560 states and 17620 transitions. [2022-01-17 23:22:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:15,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:15,179 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] [2022-01-17 23:22:15,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-17 23:22:15,179 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)] === [2022-01-17 23:22:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -340100188, now seen corresponding path program 39 times [2022-01-17 23:22:15,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:15,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047446182] [2022-01-17 23:22:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:15,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:15,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:15,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047446182] [2022-01-17 23:22:15,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047446182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:15,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:15,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:15,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395710926] [2022-01-17 23:22:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:15,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:15,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:15,589 INFO L87 Difference]: Start difference. First operand 6560 states and 17620 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:17,029 INFO L93 Difference]: Finished difference Result 14112 states and 37480 transitions. [2022-01-17 23:22:17,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:17,029 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:17,051 INFO L225 Difference]: With dead ends: 14112 [2022-01-17 23:22:17,051 INFO L226 Difference]: Without dead ends: 14112 [2022-01-17 23:22:17,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:17,052 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1161 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:17,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3705 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:17,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14112 states. [2022-01-17 23:22:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14112 to 6520. [2022-01-17 23:22:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6520 states, 6518 states have (on average 2.6857931880945074) internal successors, (17506), 6519 states have internal predecessors, (17506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6520 states to 6520 states and 17506 transitions. [2022-01-17 23:22:17,204 INFO L78 Accepts]: Start accepts. Automaton has 6520 states and 17506 transitions. Word has length 130 [2022-01-17 23:22:17,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:17,204 INFO L470 AbstractCegarLoop]: Abstraction has 6520 states and 17506 transitions. [2022-01-17 23:22:17,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:17,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6520 states and 17506 transitions. [2022-01-17 23:22:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:17,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:17,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:17,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-17 23:22:17,212 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1649480568, now seen corresponding path program 40 times [2022-01-17 23:22:17,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:17,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332528778] [2022-01-17 23:22:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:17,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:17,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:17,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332528778] [2022-01-17 23:22:17,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332528778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:17,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:17,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:17,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317929962] [2022-01-17 23:22:17,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:17,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:17,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:17,523 INFO L87 Difference]: Start difference. First operand 6520 states and 17506 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:18,660 INFO L93 Difference]: Finished difference Result 11062 states and 29439 transitions. [2022-01-17 23:22:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:18,673 INFO L225 Difference]: With dead ends: 11062 [2022-01-17 23:22:18,673 INFO L226 Difference]: Without dead ends: 11062 [2022-01-17 23:22:18,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:18,674 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1187 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:18,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 2579 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:18,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-01-17 23:22:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 6552. [2022-01-17 23:22:18,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:18,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-17 23:22:18,767 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-17 23:22:18,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:18,767 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-17 23:22:18,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-17 23:22:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:18,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:18,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:18,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-17 23:22:18,774 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:18,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:18,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1021537220, now seen corresponding path program 41 times [2022-01-17 23:22:18,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:18,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915653774] [2022-01-17 23:22:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:18,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:19,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:19,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915653774] [2022-01-17 23:22:19,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915653774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:19,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:19,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:19,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877836452] [2022-01-17 23:22:19,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:19,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:19,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:19,124 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:20,236 INFO L93 Difference]: Finished difference Result 12028 states and 31591 transitions. [2022-01-17 23:22:20,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:20,251 INFO L225 Difference]: With dead ends: 12028 [2022-01-17 23:22:20,252 INFO L226 Difference]: Without dead ends: 12028 [2022-01-17 23:22:20,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:20,252 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1129 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:20,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 2655 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12028 states. [2022-01-17 23:22:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12028 to 6532. [2022-01-17 23:22:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 6530 states have (on average 2.6865237366003063) internal successors, (17543), 6531 states have internal predecessors, (17543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 17543 transitions. [2022-01-17 23:22:20,349 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 17543 transitions. Word has length 130 [2022-01-17 23:22:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:20,349 INFO L470 AbstractCegarLoop]: Abstraction has 6532 states and 17543 transitions. [2022-01-17 23:22:20,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 17543 transitions. [2022-01-17 23:22:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:20,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:20,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:20,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-17 23:22:20,356 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:20,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:20,356 INFO L85 PathProgramCache]: Analyzing trace with hash -395550560, now seen corresponding path program 42 times [2022-01-17 23:22:20,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:20,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885349349] [2022-01-17 23:22:20,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:20,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:20,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:20,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885349349] [2022-01-17 23:22:20,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885349349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:20,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:20,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:20,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492555727] [2022-01-17 23:22:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:20,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:20,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:20,674 INFO L87 Difference]: Start difference. First operand 6532 states and 17543 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:21,772 INFO L93 Difference]: Finished difference Result 15494 states and 40552 transitions. [2022-01-17 23:22:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:21,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:21,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:21,793 INFO L225 Difference]: With dead ends: 15494 [2022-01-17 23:22:21,793 INFO L226 Difference]: Without dead ends: 15494 [2022-01-17 23:22:21,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:21,793 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1157 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:21,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2436 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15494 states. [2022-01-17 23:22:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15494 to 6552. [2022-01-17 23:22:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-17 23:22:21,916 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-17 23:22:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:21,916 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-17 23:22:21,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-17 23:22:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:21,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:21,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:21,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-17 23:22:21,926 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:21,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1303088614, now seen corresponding path program 43 times [2022-01-17 23:22:21,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:21,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986883403] [2022-01-17 23:22:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:21,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:22,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:22,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986883403] [2022-01-17 23:22:22,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986883403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:22,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:22,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:22,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582600816] [2022-01-17 23:22:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:22,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:22,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:22,550 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:25,023 INFO L93 Difference]: Finished difference Result 12282 states and 31922 transitions. [2022-01-17 23:22:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:25,041 INFO L225 Difference]: With dead ends: 12282 [2022-01-17 23:22:25,042 INFO L226 Difference]: Without dead ends: 12282 [2022-01-17 23:22:25,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=553, Invalid=1609, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:25,042 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1096 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3474 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:25,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3474 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:25,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2022-01-17 23:22:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 6608. [2022-01-17 23:22:25,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6608 states, 6606 states have (on average 2.685437481077808) internal successors, (17740), 6607 states have internal predecessors, (17740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6608 states to 6608 states and 17740 transitions. [2022-01-17 23:22:25,146 INFO L78 Accepts]: Start accepts. Automaton has 6608 states and 17740 transitions. Word has length 130 [2022-01-17 23:22:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:25,146 INFO L470 AbstractCegarLoop]: Abstraction has 6608 states and 17740 transitions. [2022-01-17 23:22:25,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 6608 states and 17740 transitions. [2022-01-17 23:22:25,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:25,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:25,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:25,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-17 23:22:25,153 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:25,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1244826918, now seen corresponding path program 44 times [2022-01-17 23:22:25,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:25,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146952144] [2022-01-17 23:22:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:25,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:25,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:25,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146952144] [2022-01-17 23:22:25,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146952144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:25,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:25,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:25,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401951118] [2022-01-17 23:22:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:25,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:25,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:25,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:25,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:25,483 INFO L87 Difference]: Start difference. First operand 6608 states and 17740 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:26,542 INFO L93 Difference]: Finished difference Result 12234 states and 32154 transitions. [2022-01-17 23:22:26,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:26,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:26,559 INFO L225 Difference]: With dead ends: 12234 [2022-01-17 23:22:26,559 INFO L226 Difference]: Without dead ends: 12234 [2022-01-17 23:22:26,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:26,559 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1170 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:26,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 2428 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12234 states. [2022-01-17 23:22:26,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12234 to 6472. [2022-01-17 23:22:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 6470 states have (on average 2.6850077279752704) internal successors, (17372), 6471 states have internal predecessors, (17372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 17372 transitions. [2022-01-17 23:22:26,672 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 17372 transitions. Word has length 130 [2022-01-17 23:22:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:26,672 INFO L470 AbstractCegarLoop]: Abstraction has 6472 states and 17372 transitions. [2022-01-17 23:22:26,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 17372 transitions. [2022-01-17 23:22:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:26,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:26,678 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] [2022-01-17 23:22:26,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-17 23:22:26,679 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash -345771456, now seen corresponding path program 45 times [2022-01-17 23:22:26,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:26,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672123071] [2022-01-17 23:22:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:26,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:27,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:27,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672123071] [2022-01-17 23:22:27,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672123071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:27,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:27,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:27,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518632735] [2022-01-17 23:22:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:27,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:27,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:27,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:27,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:27,078 INFO L87 Difference]: Start difference. First operand 6472 states and 17372 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:28,529 INFO L93 Difference]: Finished difference Result 15978 states and 42052 transitions. [2022-01-17 23:22:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:28,530 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:28,553 INFO L225 Difference]: With dead ends: 15978 [2022-01-17 23:22:28,554 INFO L226 Difference]: Without dead ends: 15978 [2022-01-17 23:22:28,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:28,554 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1303 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:28,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 3882 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:22:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15978 states. [2022-01-17 23:22:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15978 to 6552. [2022-01-17 23:22:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-17 23:22:28,720 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-17 23:22:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:28,720 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-17 23:22:28,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-17 23:22:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:28,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:28,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:28,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-17 23:22:28,726 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:28,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1352867718, now seen corresponding path program 46 times [2022-01-17 23:22:28,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:28,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290635753] [2022-01-17 23:22:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:28,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:29,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:29,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290635753] [2022-01-17 23:22:29,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290635753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:29,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:29,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:29,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602594868] [2022-01-17 23:22:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:29,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:29,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:29,111 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:30,532 INFO L93 Difference]: Finished difference Result 15870 states and 41744 transitions. [2022-01-17 23:22:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:30,532 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:30,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:30,553 INFO L225 Difference]: With dead ends: 15870 [2022-01-17 23:22:30,553 INFO L226 Difference]: Without dead ends: 15870 [2022-01-17 23:22:30,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:30,554 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1156 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:30,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 3872 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:22:30,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15870 states. [2022-01-17 23:22:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15870 to 6532. [2022-01-17 23:22:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 6530 states have (on average 2.6865237366003063) internal successors, (17543), 6531 states have internal predecessors, (17543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 17543 transitions. [2022-01-17 23:22:30,674 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 17543 transitions. Word has length 130 [2022-01-17 23:22:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:30,674 INFO L470 AbstractCegarLoop]: Abstraction has 6532 states and 17543 transitions. [2022-01-17 23:22:30,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 17543 transitions. [2022-01-17 23:22:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:30,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:30,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:30,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-17 23:22:30,682 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1694536446, now seen corresponding path program 47 times [2022-01-17 23:22:30,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:30,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999421299] [2022-01-17 23:22:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:30,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:31,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:31,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999421299] [2022-01-17 23:22:31,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999421299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:31,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:31,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:22:31,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088262347] [2022-01-17 23:22:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:31,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:22:31,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:31,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:22:31,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:22:31,278 INFO L87 Difference]: Start difference. First operand 6532 states and 17543 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:33,737 INFO L93 Difference]: Finished difference Result 11776 states and 30851 transitions. [2022-01-17 23:22:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:22:33,737 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:33,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:33,753 INFO L225 Difference]: With dead ends: 11776 [2022-01-17 23:22:33,753 INFO L226 Difference]: Without dead ends: 11776 [2022-01-17 23:22:33,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:22:33,754 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1130 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:33,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 3684 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:22:33,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2022-01-17 23:22:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 6610. [2022-01-17 23:22:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6610 states, 6608 states have (on average 2.684322033898305) internal successors, (17738), 6609 states have internal predecessors, (17738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6610 states to 6610 states and 17738 transitions. [2022-01-17 23:22:33,859 INFO L78 Accepts]: Start accepts. Automaton has 6610 states and 17738 transitions. Word has length 130 [2022-01-17 23:22:33,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:33,859 INFO L470 AbstractCegarLoop]: Abstraction has 6610 states and 17738 transitions. [2022-01-17 23:22:33,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6610 states and 17738 transitions. [2022-01-17 23:22:33,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:33,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:33,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:33,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-17 23:22:33,866 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:33,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:33,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1901089790, now seen corresponding path program 48 times [2022-01-17 23:22:33,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:33,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583670283] [2022-01-17 23:22:33,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:33,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:34,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:34,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583670283] [2022-01-17 23:22:34,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583670283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:34,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:34,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:34,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593347344] [2022-01-17 23:22:34,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:34,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:34,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:34,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:34,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:34,232 INFO L87 Difference]: Start difference. First operand 6610 states and 17738 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:35,999 INFO L93 Difference]: Finished difference Result 16312 states and 42967 transitions. [2022-01-17 23:22:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:22:35,999 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:36,020 INFO L225 Difference]: With dead ends: 16312 [2022-01-17 23:22:36,021 INFO L226 Difference]: Without dead ends: 16312 [2022-01-17 23:22:36,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:22:36,021 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1090 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:36,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2842 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:36,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16312 states. [2022-01-17 23:22:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16312 to 6566. [2022-01-17 23:22:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6566 states, 6564 states have (on average 2.6834247410115784) internal successors, (17614), 6565 states have internal predecessors, (17614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 17614 transitions. [2022-01-17 23:22:36,146 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 17614 transitions. Word has length 130 [2022-01-17 23:22:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:36,146 INFO L470 AbstractCegarLoop]: Abstraction has 6566 states and 17614 transitions. [2022-01-17 23:22:36,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 17614 transitions. [2022-01-17 23:22:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:36,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:36,154 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] [2022-01-17 23:22:36,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-17 23:22:36,154 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:36,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1218960386, now seen corresponding path program 49 times [2022-01-17 23:22:36,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:36,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130748045] [2022-01-17 23:22:36,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:36,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:36,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:36,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130748045] [2022-01-17 23:22:36,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130748045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:36,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:36,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-17 23:22:36,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123001034] [2022-01-17 23:22:36,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:36,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-17 23:22:36,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:36,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-17 23:22:36,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-01-17 23:22:36,811 INFO L87 Difference]: Start difference. First operand 6566 states and 17614 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:39,694 INFO L93 Difference]: Finished difference Result 14766 states and 38915 transitions. [2022-01-17 23:22:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:22:39,695 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:39,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:39,714 INFO L225 Difference]: With dead ends: 14766 [2022-01-17 23:22:39,714 INFO L226 Difference]: Without dead ends: 14766 [2022-01-17 23:22:39,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:22:39,717 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1130 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:39,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 3779 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:22:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14766 states. [2022-01-17 23:22:39,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 6620. [2022-01-17 23:22:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6620 states, 6618 states have (on average 2.6861589604110003) internal successors, (17777), 6619 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6620 states to 6620 states and 17777 transitions. [2022-01-17 23:22:39,826 INFO L78 Accepts]: Start accepts. Automaton has 6620 states and 17777 transitions. Word has length 130 [2022-01-17 23:22:39,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:39,826 INFO L470 AbstractCegarLoop]: Abstraction has 6620 states and 17777 transitions. [2022-01-17 23:22:39,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 6620 states and 17777 transitions. [2022-01-17 23:22:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:39,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:39,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:39,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-17 23:22:39,833 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:39,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:39,834 INFO L85 PathProgramCache]: Analyzing trace with hash 626218434, now seen corresponding path program 50 times [2022-01-17 23:22:39,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:39,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011283445] [2022-01-17 23:22:39,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:39,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:40,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:40,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011283445] [2022-01-17 23:22:40,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011283445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:40,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:40,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:40,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902302865] [2022-01-17 23:22:40,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:40,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:40,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:40,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:40,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:40,157 INFO L87 Difference]: Start difference. First operand 6620 states and 17777 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:41,266 INFO L93 Difference]: Finished difference Result 12504 states and 33089 transitions. [2022-01-17 23:22:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:41,282 INFO L225 Difference]: With dead ends: 12504 [2022-01-17 23:22:41,283 INFO L226 Difference]: Without dead ends: 12504 [2022-01-17 23:22:41,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:41,283 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 959 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:41,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [959 Valid, 2513 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12504 states. [2022-01-17 23:22:41,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12504 to 6452. [2022-01-17 23:22:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6452 states, 6450 states have (on average 2.684496124031008) internal successors, (17315), 6451 states have internal predecessors, (17315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6452 states to 6452 states and 17315 transitions. [2022-01-17 23:22:41,410 INFO L78 Accepts]: Start accepts. Automaton has 6452 states and 17315 transitions. Word has length 130 [2022-01-17 23:22:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:41,411 INFO L470 AbstractCegarLoop]: Abstraction has 6452 states and 17315 transitions. [2022-01-17 23:22:41,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6452 states and 17315 transitions. [2022-01-17 23:22:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:41,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:41,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:41,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-17 23:22:41,417 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:41,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:41,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2024487764, now seen corresponding path program 51 times [2022-01-17 23:22:41,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:41,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151865212] [2022-01-17 23:22:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:41,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:41,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:41,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151865212] [2022-01-17 23:22:41,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151865212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:41,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:41,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:41,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932127376] [2022-01-17 23:22:41,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:41,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:41,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:41,747 INFO L87 Difference]: Start difference. First operand 6452 states and 17315 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:42,531 INFO L93 Difference]: Finished difference Result 7107 states and 18693 transitions. [2022-01-17 23:22:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:22:42,531 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:42,540 INFO L225 Difference]: With dead ends: 7107 [2022-01-17 23:22:42,540 INFO L226 Difference]: Without dead ends: 7107 [2022-01-17 23:22:42,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:42,540 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 803 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:42,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [803 Valid, 1853 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:42,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-01-17 23:22:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 6100. [2022-01-17 23:22:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6098 states have (on average 2.6994096425057394) internal successors, (16461), 6099 states have internal predecessors, (16461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 16461 transitions. [2022-01-17 23:22:42,607 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 16461 transitions. Word has length 130 [2022-01-17 23:22:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:42,608 INFO L470 AbstractCegarLoop]: Abstraction has 6100 states and 16461 transitions. [2022-01-17 23:22:42,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 16461 transitions. [2022-01-17 23:22:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:42,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:42,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:42,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-17 23:22:42,614 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:42,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash -571409422, now seen corresponding path program 52 times [2022-01-17 23:22:42,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:42,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523856980] [2022-01-17 23:22:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:42,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:42,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:42,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:42,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523856980] [2022-01-17 23:22:42,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523856980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:42,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:42,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:42,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750314293] [2022-01-17 23:22:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:42,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:42,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:42,920 INFO L87 Difference]: Start difference. First operand 6100 states and 16461 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:43,983 INFO L93 Difference]: Finished difference Result 10052 states and 26761 transitions. [2022-01-17 23:22:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:43,996 INFO L225 Difference]: With dead ends: 10052 [2022-01-17 23:22:43,996 INFO L226 Difference]: Without dead ends: 10052 [2022-01-17 23:22:43,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:43,997 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1245 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:43,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 2268 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2022-01-17 23:22:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 6172. [2022-01-17 23:22:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 6170 states have (on average 2.7016207455429497) internal successors, (16669), 6171 states have internal predecessors, (16669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 16669 transitions. [2022-01-17 23:22:44,086 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 16669 transitions. Word has length 130 [2022-01-17 23:22:44,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:44,086 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 16669 transitions. [2022-01-17 23:22:44,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 16669 transitions. [2022-01-17 23:22:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:44,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:44,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:44,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-17 23:22:44,093 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:44,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1127229752, now seen corresponding path program 53 times [2022-01-17 23:22:44,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:44,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148587874] [2022-01-17 23:22:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:44,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:44,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:44,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148587874] [2022-01-17 23:22:44,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148587874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:44,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:44,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:44,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924061984] [2022-01-17 23:22:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:44,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:44,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:44,413 INFO L87 Difference]: Start difference. First operand 6172 states and 16669 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:45,460 INFO L93 Difference]: Finished difference Result 9960 states and 26489 transitions. [2022-01-17 23:22:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:45,460 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:45,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:45,474 INFO L225 Difference]: With dead ends: 9960 [2022-01-17 23:22:45,474 INFO L226 Difference]: Without dead ends: 9960 [2022-01-17 23:22:45,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:45,475 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1098 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:45,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 2350 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:22:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9960 states. [2022-01-17 23:22:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9960 to 6154. [2022-01-17 23:22:45,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.701072821846554) internal successors, (16617), 6153 states have internal predecessors, (16617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16617 transitions. [2022-01-17 23:22:45,561 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16617 transitions. Word has length 130 [2022-01-17 23:22:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:45,561 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16617 transitions. [2022-01-17 23:22:45,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16617 transitions. [2022-01-17 23:22:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:45,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:45,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:45,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-17 23:22:45,568 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:45,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:45,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1920174412, now seen corresponding path program 54 times [2022-01-17 23:22:45,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:45,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602350381] [2022-01-17 23:22:45,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:45,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:45,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:45,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602350381] [2022-01-17 23:22:45,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602350381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:45,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:45,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:45,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713310298] [2022-01-17 23:22:45,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:45,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:45,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:45,895 INFO L87 Difference]: Start difference. First operand 6154 states and 16617 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:47,014 INFO L93 Difference]: Finished difference Result 10256 states and 27355 transitions. [2022-01-17 23:22:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:47,027 INFO L225 Difference]: With dead ends: 10256 [2022-01-17 23:22:47,027 INFO L226 Difference]: Without dead ends: 10256 [2022-01-17 23:22:47,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:47,027 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 960 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:47,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 2421 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10256 states. [2022-01-17 23:22:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10256 to 6118. [2022-01-17 23:22:47,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 6116 states have (on average 2.6999672988881622) internal successors, (16513), 6117 states have internal predecessors, (16513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:47,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 16513 transitions. [2022-01-17 23:22:47,120 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 16513 transitions. Word has length 130 [2022-01-17 23:22:47,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:47,120 INFO L470 AbstractCegarLoop]: Abstraction has 6118 states and 16513 transitions. [2022-01-17 23:22:47,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:47,120 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 16513 transitions. [2022-01-17 23:22:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:47,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:47,126 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] [2022-01-17 23:22:47,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-17 23:22:47,126 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:47,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1199875764, now seen corresponding path program 55 times [2022-01-17 23:22:47,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:47,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885517033] [2022-01-17 23:22:47,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:47,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:47,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:47,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885517033] [2022-01-17 23:22:47,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885517033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:47,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:47,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:47,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179067163] [2022-01-17 23:22:47,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:47,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:47,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:47,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:47,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:47,499 INFO L87 Difference]: Start difference. First operand 6118 states and 16513 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:49,089 INFO L93 Difference]: Finished difference Result 10548 states and 28211 transitions. [2022-01-17 23:22:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:22:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:49,103 INFO L225 Difference]: With dead ends: 10548 [2022-01-17 23:22:49,103 INFO L226 Difference]: Without dead ends: 10548 [2022-01-17 23:22:49,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:22:49,104 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 986 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:49,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 2429 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:49,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-01-17 23:22:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 6100. [2022-01-17 23:22:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6098 states have (on average 2.6994096425057394) internal successors, (16461), 6099 states have internal predecessors, (16461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 16461 transitions. [2022-01-17 23:22:49,192 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 16461 transitions. Word has length 130 [2022-01-17 23:22:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:49,192 INFO L470 AbstractCegarLoop]: Abstraction has 6100 states and 16461 transitions. [2022-01-17 23:22:49,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 16461 transitions. [2022-01-17 23:22:49,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:49,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:49,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:49,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-17 23:22:49,198 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:49,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash 598553976, now seen corresponding path program 56 times [2022-01-17 23:22:49,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:49,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36561859] [2022-01-17 23:22:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:49,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:49,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36561859] [2022-01-17 23:22:49,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36561859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:49,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:49,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:49,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733400697] [2022-01-17 23:22:49,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:49,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:49,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:49,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:49,598 INFO L87 Difference]: Start difference. First operand 6100 states and 16461 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:50,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:50,945 INFO L93 Difference]: Finished difference Result 6984 states and 18769 transitions. [2022-01-17 23:22:50,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:50,945 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:50,953 INFO L225 Difference]: With dead ends: 6984 [2022-01-17 23:22:50,953 INFO L226 Difference]: Without dead ends: 6984 [2022-01-17 23:22:50,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:50,955 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 906 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:50,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 3499 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:50,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-01-17 23:22:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6096. [2022-01-17 23:22:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6096 states, 6094 states have (on average 2.6995405316704955) internal successors, (16451), 6095 states have internal predecessors, (16451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 16451 transitions. [2022-01-17 23:22:51,024 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 16451 transitions. Word has length 130 [2022-01-17 23:22:51,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:51,024 INFO L470 AbstractCegarLoop]: Abstraction has 6096 states and 16451 transitions. [2022-01-17 23:22:51,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 16451 transitions. [2022-01-17 23:22:51,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:51,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:51,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:51,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-17 23:22:51,033 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:51,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1844841598, now seen corresponding path program 57 times [2022-01-17 23:22:51,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:51,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720004540] [2022-01-17 23:22:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:51,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:51,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:51,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720004540] [2022-01-17 23:22:51,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720004540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:51,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:51,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:51,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570226987] [2022-01-17 23:22:51,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:51,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:51,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:51,370 INFO L87 Difference]: Start difference. First operand 6096 states and 16451 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:53,030 INFO L93 Difference]: Finished difference Result 21413 states and 56882 transitions. [2022-01-17 23:22:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:22:53,030 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:53,093 INFO L225 Difference]: With dead ends: 21413 [2022-01-17 23:22:53,093 INFO L226 Difference]: Without dead ends: 21413 [2022-01-17 23:22:53,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:22:53,094 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1568 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:53,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 2418 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21413 states. [2022-01-17 23:22:53,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21413 to 6256. [2022-01-17 23:22:53,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-17 23:22:53,213 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-17 23:22:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:53,213 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-17 23:22:53,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-17 23:22:53,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:53,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:53,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:53,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-17 23:22:53,220 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:53,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:53,220 INFO L85 PathProgramCache]: Analyzing trace with hash -146202424, now seen corresponding path program 58 times [2022-01-17 23:22:53,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:53,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240606982] [2022-01-17 23:22:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:53,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:53,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:53,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240606982] [2022-01-17 23:22:53,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240606982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:53,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:53,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:22:53,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681920917] [2022-01-17 23:22:53,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:53,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:22:53,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:53,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:22:53,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:22:53,529 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:54,675 INFO L93 Difference]: Finished difference Result 21321 states and 56610 transitions. [2022-01-17 23:22:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:22:54,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:54,704 INFO L225 Difference]: With dead ends: 21321 [2022-01-17 23:22:54,704 INFO L226 Difference]: Without dead ends: 21321 [2022-01-17 23:22:54,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:22:54,704 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1581 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:54,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 2729 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:54,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21321 states. [2022-01-17 23:22:54,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21321 to 6238. [2022-01-17 23:22:54,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-17 23:22:54,853 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-17 23:22:54,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:54,853 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-17 23:22:54,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-17 23:22:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:54,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:54,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:54,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-17 23:22:54,861 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:54,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:54,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1101360708, now seen corresponding path program 59 times [2022-01-17 23:22:54,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:54,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037535011] [2022-01-17 23:22:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:54,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:55,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:55,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037535011] [2022-01-17 23:22:55,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037535011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:55,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:55,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:55,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523067416] [2022-01-17 23:22:55,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:55,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:55,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:55,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:55,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:55,203 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:56,739 INFO L93 Difference]: Finished difference Result 18879 states and 50197 transitions. [2022-01-17 23:22:56,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:56,740 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:56,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:56,765 INFO L225 Difference]: With dead ends: 18879 [2022-01-17 23:22:56,765 INFO L226 Difference]: Without dead ends: 18879 [2022-01-17 23:22:56,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:22:56,766 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1360 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:56,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 2692 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:22:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18879 states. [2022-01-17 23:22:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18879 to 6202. [2022-01-17 23:22:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.702903225806452) internal successors, (16758), 6201 states have internal predecessors, (16758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16758 transitions. [2022-01-17 23:22:56,909 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16758 transitions. Word has length 130 [2022-01-17 23:22:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:56,909 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16758 transitions. [2022-01-17 23:22:56,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:56,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16758 transitions. [2022-01-17 23:22:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:56,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:56,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:56,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-17 23:22:56,917 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:56,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash -208019672, now seen corresponding path program 60 times [2022-01-17 23:22:56,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:56,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926816833] [2022-01-17 23:22:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:56,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:57,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:57,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926816833] [2022-01-17 23:22:57,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926816833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:57,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:57,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:22:57,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725062233] [2022-01-17 23:22:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:57,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:22:57,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:57,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:22:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:22:57,316 INFO L87 Difference]: Start difference. First operand 6202 states and 16758 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:58,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:22:58,774 INFO L93 Difference]: Finished difference Result 15905 states and 42338 transitions. [2022-01-17 23:22:58,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:22:58,774 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:22:58,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:22:58,794 INFO L225 Difference]: With dead ends: 15905 [2022-01-17 23:22:58,794 INFO L226 Difference]: Without dead ends: 15905 [2022-01-17 23:22:58,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:22:58,795 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1481 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:22:58,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 3942 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:22:58,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15905 states. [2022-01-17 23:22:58,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15905 to 6238. [2022-01-17 23:22:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-17 23:22:58,905 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-17 23:22:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:22:58,905 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-17 23:22:58,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:22:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-17 23:22:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:22:58,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:22:58,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:22:58,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-17 23:22:58,911 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:22:58,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:22:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1831969180, now seen corresponding path program 61 times [2022-01-17 23:22:58,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:22:58,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909360895] [2022-01-17 23:22:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:22:58,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:22:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:22:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:22:59,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:22:59,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909360895] [2022-01-17 23:22:59,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909360895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:22:59,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:22:59,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:22:59,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268296473] [2022-01-17 23:22:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:22:59,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:22:59,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:22:59,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:22:59,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:22:59,251 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:00,884 INFO L93 Difference]: Finished difference Result 16855 states and 44464 transitions. [2022-01-17 23:23:00,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:00,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:00,906 INFO L225 Difference]: With dead ends: 16855 [2022-01-17 23:23:00,907 INFO L226 Difference]: Without dead ends: 16855 [2022-01-17 23:23:00,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:23:00,907 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1437 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:00,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2708 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16855 states. [2022-01-17 23:23:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16855 to 6220. [2022-01-17 23:23:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:01,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-17 23:23:01,035 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-17 23:23:01,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:01,035 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-17 23:23:01,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:01,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-17 23:23:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:01,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:01,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:01,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-17 23:23:01,042 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:01,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1045910336, now seen corresponding path program 62 times [2022-01-17 23:23:01,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:01,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482471148] [2022-01-17 23:23:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:01,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:01,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:01,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:01,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482471148] [2022-01-17 23:23:01,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482471148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:01,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:01,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:01,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400870499] [2022-01-17 23:23:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:01,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:01,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:01,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:01,427 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:02,953 INFO L93 Difference]: Finished difference Result 20197 states and 53147 transitions. [2022-01-17 23:23:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:02,953 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:02,981 INFO L225 Difference]: With dead ends: 20197 [2022-01-17 23:23:02,981 INFO L226 Difference]: Without dead ends: 20197 [2022-01-17 23:23:02,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:02,982 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1449 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:02,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 4317 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:03,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20197 states. [2022-01-17 23:23:03,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20197 to 6238. [2022-01-17 23:23:03,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-17 23:23:03,135 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-17 23:23:03,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:03,135 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-17 23:23:03,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:03,135 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-17 23:23:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:03,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:03,142 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] [2022-01-17 23:23:03,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-17 23:23:03,142 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1550417786, now seen corresponding path program 63 times [2022-01-17 23:23:03,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:03,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533858067] [2022-01-17 23:23:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:03,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:03,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:03,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533858067] [2022-01-17 23:23:03,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533858067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:03,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:03,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:03,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557801346] [2022-01-17 23:23:03,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:03,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:03,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:03,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:03,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:03,507 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:05,065 INFO L93 Difference]: Finished difference Result 17009 states and 44915 transitions. [2022-01-17 23:23:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:05,067 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:05,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:05,090 INFO L225 Difference]: With dead ends: 17009 [2022-01-17 23:23:05,090 INFO L226 Difference]: Without dead ends: 17009 [2022-01-17 23:23:05,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:23:05,090 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1294 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:05,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 2550 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17009 states. [2022-01-17 23:23:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17009 to 6166. [2022-01-17 23:23:05,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6166 states, 6164 states have (on average 2.7018170019467878) internal successors, (16654), 6165 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 16654 transitions. [2022-01-17 23:23:05,212 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 16654 transitions. Word has length 130 [2022-01-17 23:23:05,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:05,213 INFO L470 AbstractCegarLoop]: Abstraction has 6166 states and 16654 transitions. [2022-01-17 23:23:05,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 16654 transitions. [2022-01-17 23:23:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:05,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:05,220 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] [2022-01-17 23:23:05,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-17 23:23:05,220 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:05,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1095689440, now seen corresponding path program 64 times [2022-01-17 23:23:05,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:05,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385913898] [2022-01-17 23:23:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:05,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:05,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:05,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385913898] [2022-01-17 23:23:05,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385913898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:05,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:05,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:05,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052658281] [2022-01-17 23:23:05,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:05,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:05,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:05,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:05,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:05,539 INFO L87 Difference]: Start difference. First operand 6166 states and 16654 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:06,689 INFO L93 Difference]: Finished difference Result 16217 states and 43008 transitions. [2022-01-17 23:23:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:06,711 INFO L225 Difference]: With dead ends: 16217 [2022-01-17 23:23:06,711 INFO L226 Difference]: Without dead ends: 16217 [2022-01-17 23:23:06,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:06,711 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1356 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:06,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 2746 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16217 states. [2022-01-17 23:23:06,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16217 to 6238. [2022-01-17 23:23:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-17 23:23:06,841 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-17 23:23:06,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:06,841 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-17 23:23:06,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:06,841 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-17 23:23:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:06,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:06,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:06,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-17 23:23:06,848 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:06,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1500638682, now seen corresponding path program 65 times [2022-01-17 23:23:06,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:06,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105797686] [2022-01-17 23:23:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:06,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:07,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:07,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105797686] [2022-01-17 23:23:07,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105797686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:07,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:07,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:07,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948527092] [2022-01-17 23:23:07,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:07,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:07,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:07,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:07,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:07,149 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:08,253 INFO L93 Difference]: Finished difference Result 16125 states and 42736 transitions. [2022-01-17 23:23:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:08,253 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:08,276 INFO L225 Difference]: With dead ends: 16125 [2022-01-17 23:23:08,276 INFO L226 Difference]: Without dead ends: 16125 [2022-01-17 23:23:08,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:08,277 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1298 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:08,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1298 Valid, 2798 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2022-01-17 23:23:08,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 6220. [2022-01-17 23:23:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-17 23:23:08,395 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-17 23:23:08,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:08,395 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-17 23:23:08,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:08,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-17 23:23:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:08,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:08,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:08,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-17 23:23:08,403 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:08,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:08,403 INFO L85 PathProgramCache]: Analyzing trace with hash -253075550, now seen corresponding path program 66 times [2022-01-17 23:23:08,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:08,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676835951] [2022-01-17 23:23:08,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:08,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:08,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:08,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:08,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676835951] [2022-01-17 23:23:08,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676835951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:08,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:08,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:08,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206024061] [2022-01-17 23:23:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:08,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:08,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:08,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:08,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:08,721 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:09,843 INFO L93 Difference]: Finished difference Result 16421 states and 43602 transitions. [2022-01-17 23:23:09,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:09,865 INFO L225 Difference]: With dead ends: 16421 [2022-01-17 23:23:09,865 INFO L226 Difference]: Without dead ends: 16421 [2022-01-17 23:23:09,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:09,865 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1139 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:09,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2555 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:09,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16421 states. [2022-01-17 23:23:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16421 to 6184. [2022-01-17 23:23:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6182 states have (on average 2.7023616952442575) internal successors, (16706), 6183 states have internal predecessors, (16706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 16706 transitions. [2022-01-17 23:23:09,990 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 16706 transitions. Word has length 130 [2022-01-17 23:23:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:09,990 INFO L470 AbstractCegarLoop]: Abstraction has 6184 states and 16706 transitions. [2022-01-17 23:23:09,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 16706 transitions. [2022-01-17 23:23:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:09,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:09,999 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] [2022-01-17 23:23:10,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-17 23:23:10,000 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:10,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1427992670, now seen corresponding path program 67 times [2022-01-17 23:23:10,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:10,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291761997] [2022-01-17 23:23:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:10,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:10,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:10,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291761997] [2022-01-17 23:23:10,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291761997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:10,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:10,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:10,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503843243] [2022-01-17 23:23:10,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:10,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:10,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:10,341 INFO L87 Difference]: Start difference. First operand 6184 states and 16706 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:11,679 INFO L93 Difference]: Finished difference Result 13215 states and 35193 transitions. [2022-01-17 23:23:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:23:11,679 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:11,696 INFO L225 Difference]: With dead ends: 13215 [2022-01-17 23:23:11,696 INFO L226 Difference]: Without dead ends: 13215 [2022-01-17 23:23:11,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:23:11,697 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1260 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:11,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 2422 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:11,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13215 states. [2022-01-17 23:23:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13215 to 6148. [2022-01-17 23:23:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6146 states have (on average 2.70126911812561) internal successors, (16602), 6147 states have internal predecessors, (16602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 16602 transitions. [2022-01-17 23:23:11,791 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 16602 transitions. Word has length 130 [2022-01-17 23:23:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:11,791 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 16602 transitions. [2022-01-17 23:23:11,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:11,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 16602 transitions. [2022-01-17 23:23:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:11,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:11,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:11,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-17 23:23:11,797 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:11,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1636005534, now seen corresponding path program 68 times [2022-01-17 23:23:11,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:11,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355148322] [2022-01-17 23:23:11,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:11,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:12,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:12,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355148322] [2022-01-17 23:23:12,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355148322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:12,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:12,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:12,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717452109] [2022-01-17 23:23:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:12,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:12,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:12,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:12,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:12,186 INFO L87 Difference]: Start difference. First operand 6148 states and 16602 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:13,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:13,828 INFO L93 Difference]: Finished difference Result 20847 states and 55104 transitions. [2022-01-17 23:23:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:23:13,828 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:13,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:13,857 INFO L225 Difference]: With dead ends: 20847 [2022-01-17 23:23:13,857 INFO L226 Difference]: Without dead ends: 20847 [2022-01-17 23:23:13,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:23:13,858 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1541 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:13,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 2530 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:13,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20847 states. [2022-01-17 23:23:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20847 to 6310. [2022-01-17 23:23:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6308 states have (on average 2.706087507926443) internal successors, (17070), 6309 states have internal predecessors, (17070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:14,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 17070 transitions. [2022-01-17 23:23:14,003 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 17070 transitions. Word has length 130 [2022-01-17 23:23:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:14,003 INFO L470 AbstractCegarLoop]: Abstraction has 6310 states and 17070 transitions. [2022-01-17 23:23:14,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 17070 transitions. [2022-01-17 23:23:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:14,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:14,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:14,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-17 23:23:14,010 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:14,010 INFO L85 PathProgramCache]: Analyzing trace with hash 62633640, now seen corresponding path program 69 times [2022-01-17 23:23:14,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:14,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935318832] [2022-01-17 23:23:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:14,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:14,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:14,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935318832] [2022-01-17 23:23:14,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935318832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:14,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:14,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:14,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549781562] [2022-01-17 23:23:14,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:14,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:14,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:14,363 INFO L87 Difference]: Start difference. First operand 6310 states and 17070 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:16,227 INFO L93 Difference]: Finished difference Result 20755 states and 54832 transitions. [2022-01-17 23:23:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:23:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:16,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:16,265 INFO L225 Difference]: With dead ends: 20755 [2022-01-17 23:23:16,265 INFO L226 Difference]: Without dead ends: 20755 [2022-01-17 23:23:16,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:23:16,266 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1360 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:16,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 2583 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:16,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20755 states. [2022-01-17 23:23:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20755 to 6292. [2022-01-17 23:23:16,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-17 23:23:16,420 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-17 23:23:16,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:16,420 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-17 23:23:16,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:16,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-17 23:23:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:16,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:16,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:16,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-17 23:23:16,427 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:16,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1310196772, now seen corresponding path program 70 times [2022-01-17 23:23:16,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:16,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454131950] [2022-01-17 23:23:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:16,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:16,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:16,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454131950] [2022-01-17 23:23:16,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454131950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:16,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:16,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:16,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26740714] [2022-01-17 23:23:16,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:16,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:16,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:16,772 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:18,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:18,583 INFO L93 Difference]: Finished difference Result 18313 states and 48419 transitions. [2022-01-17 23:23:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:18,583 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:18,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:18,608 INFO L225 Difference]: With dead ends: 18313 [2022-01-17 23:23:18,608 INFO L226 Difference]: Without dead ends: 18313 [2022-01-17 23:23:18,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:23:18,609 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1248 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:18,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2824 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18313 states. [2022-01-17 23:23:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18313 to 6256. [2022-01-17 23:23:18,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-17 23:23:18,741 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-17 23:23:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:18,741 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-17 23:23:18,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-17 23:23:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:18,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:18,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:18,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-17 23:23:18,750 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash 816392, now seen corresponding path program 71 times [2022-01-17 23:23:18,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:18,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537095138] [2022-01-17 23:23:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:18,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:19,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537095138] [2022-01-17 23:23:19,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537095138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:19,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:19,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:19,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267797930] [2022-01-17 23:23:19,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:19,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:19,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:19,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:19,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:19,078 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:20,709 INFO L93 Difference]: Finished difference Result 21007 states and 55606 transitions. [2022-01-17 23:23:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:23:20,710 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:20,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:20,740 INFO L225 Difference]: With dead ends: 21007 [2022-01-17 23:23:20,740 INFO L226 Difference]: Without dead ends: 21007 [2022-01-17 23:23:20,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:23:20,740 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1338 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:20,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2616 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:20,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21007 states. [2022-01-17 23:23:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21007 to 6292. [2022-01-17 23:23:20,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-17 23:23:20,915 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-17 23:23:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:20,915 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-17 23:23:20,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-17 23:23:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:20,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:20,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:20,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-17 23:23:20,922 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:20,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1623133116, now seen corresponding path program 72 times [2022-01-17 23:23:20,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:20,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123343954] [2022-01-17 23:23:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:20,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:21,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:21,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123343954] [2022-01-17 23:23:21,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123343954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:21,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:21,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:21,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463580123] [2022-01-17 23:23:21,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:21,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:21,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:21,482 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:24,259 INFO L93 Difference]: Finished difference Result 19204 states and 50348 transitions. [2022-01-17 23:23:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:24,285 INFO L225 Difference]: With dead ends: 19204 [2022-01-17 23:23:24,285 INFO L226 Difference]: Without dead ends: 19204 [2022-01-17 23:23:24,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:24,285 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1163 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:24,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 3834 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:24,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19204 states. [2022-01-17 23:23:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19204 to 6350. [2022-01-17 23:23:24,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6350 states, 6348 states have (on average 2.7036862003780717) internal successors, (17163), 6349 states have internal predecessors, (17163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6350 states to 6350 states and 17163 transitions. [2022-01-17 23:23:24,421 INFO L78 Accepts]: Start accepts. Automaton has 6350 states and 17163 transitions. Word has length 130 [2022-01-17 23:23:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:24,421 INFO L470 AbstractCegarLoop]: Abstraction has 6350 states and 17163 transitions. [2022-01-17 23:23:24,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6350 states and 17163 transitions. [2022-01-17 23:23:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:24,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:24,428 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] [2022-01-17 23:23:24,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-17 23:23:24,428 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1254746400, now seen corresponding path program 73 times [2022-01-17 23:23:24,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744916908] [2022-01-17 23:23:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:24,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:24,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:24,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744916908] [2022-01-17 23:23:24,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744916908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:24,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:24,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:24,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294559274] [2022-01-17 23:23:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:24,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:24,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:24,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:24,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:24,993 INFO L87 Difference]: Start difference. First operand 6350 states and 17163 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:27,989 INFO L93 Difference]: Finished difference Result 19347 states and 50631 transitions. [2022-01-17 23:23:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-17 23:23:27,989 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:28,010 INFO L225 Difference]: With dead ends: 19347 [2022-01-17 23:23:28,010 INFO L226 Difference]: Without dead ends: 19347 [2022-01-17 23:23:28,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=591, Invalid=1665, Unknown=0, NotChecked=0, Total=2256 [2022-01-17 23:23:28,010 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1233 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:28,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 4072 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:23:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19347 states. [2022-01-17 23:23:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19347 to 6360. [2022-01-17 23:23:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6360 states, 6358 states have (on average 2.7033658383139354) internal successors, (17188), 6359 states have internal predecessors, (17188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6360 states to 6360 states and 17188 transitions. [2022-01-17 23:23:28,118 INFO L78 Accepts]: Start accepts. Automaton has 6360 states and 17188 transitions. Word has length 130 [2022-01-17 23:23:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:28,118 INFO L470 AbstractCegarLoop]: Abstraction has 6360 states and 17188 transitions. [2022-01-17 23:23:28,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6360 states and 17188 transitions. [2022-01-17 23:23:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:28,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:28,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:28,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-17 23:23:28,125 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1033682940, now seen corresponding path program 74 times [2022-01-17 23:23:28,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:28,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176290421] [2022-01-17 23:23:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:28,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:28,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:28,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176290421] [2022-01-17 23:23:28,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176290421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:28,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:28,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:28,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571487112] [2022-01-17 23:23:28,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:28,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:28,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:28,449 INFO L87 Difference]: Start difference. First operand 6360 states and 17188 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:30,205 INFO L93 Difference]: Finished difference Result 22043 states and 57931 transitions. [2022-01-17 23:23:30,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:23:30,205 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:30,236 INFO L225 Difference]: With dead ends: 22043 [2022-01-17 23:23:30,236 INFO L226 Difference]: Without dead ends: 22043 [2022-01-17 23:23:30,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:23:30,237 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1602 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:30,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 2584 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22043 states. [2022-01-17 23:23:30,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22043 to 6340. [2022-01-17 23:23:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6340 states, 6338 states have (on average 2.7029031240138846) internal successors, (17131), 6339 states have internal predecessors, (17131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 17131 transitions. [2022-01-17 23:23:30,389 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 17131 transitions. Word has length 130 [2022-01-17 23:23:30,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:30,390 INFO L470 AbstractCegarLoop]: Abstraction has 6340 states and 17131 transitions. [2022-01-17 23:23:30,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:30,390 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 17131 transitions. [2022-01-17 23:23:30,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:30,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:30,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:30,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-17 23:23:30,396 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:30,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1196484704, now seen corresponding path program 75 times [2022-01-17 23:23:30,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:30,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907089307] [2022-01-17 23:23:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:30,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:30,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:30,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907089307] [2022-01-17 23:23:30,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907089307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:30,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:30,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:30,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615503090] [2022-01-17 23:23:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:30,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:30,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:30,691 INFO L87 Difference]: Start difference. First operand 6340 states and 17131 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:31,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:31,909 INFO L93 Difference]: Finished difference Result 23751 states and 62026 transitions. [2022-01-17 23:23:31,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:31,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:31,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:31,943 INFO L225 Difference]: With dead ends: 23751 [2022-01-17 23:23:31,943 INFO L226 Difference]: Without dead ends: 23751 [2022-01-17 23:23:31,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:31,943 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1322 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:31,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 3037 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23751 states. [2022-01-17 23:23:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23751 to 6348. [2022-01-17 23:23:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 6346 states have (on average 2.703750393948944) internal successors, (17158), 6347 states have internal predecessors, (17158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 17158 transitions. [2022-01-17 23:23:32,121 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 17158 transitions. Word has length 130 [2022-01-17 23:23:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:32,121 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 17158 transitions. [2022-01-17 23:23:32,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 17158 transitions. [2022-01-17 23:23:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:32,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:32,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:32,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-17 23:23:32,129 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:32,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:32,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1399843418, now seen corresponding path program 76 times [2022-01-17 23:23:32,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:32,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554674677] [2022-01-17 23:23:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:32,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:32,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:32,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554674677] [2022-01-17 23:23:32,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554674677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:32,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:32,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:32,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517689563] [2022-01-17 23:23:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:32,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:32,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:32,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:32,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:32,470 INFO L87 Difference]: Start difference. First operand 6348 states and 17158 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:34,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:34,242 INFO L93 Difference]: Finished difference Result 20513 states and 53677 transitions. [2022-01-17 23:23:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:23:34,243 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:34,271 INFO L225 Difference]: With dead ends: 20513 [2022-01-17 23:23:34,271 INFO L226 Difference]: Without dead ends: 20513 [2022-01-17 23:23:34,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:23:34,271 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 1305 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:34,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2956 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20513 states. [2022-01-17 23:23:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20513 to 6220. [2022-01-17 23:23:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-17 23:23:34,416 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-17 23:23:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:34,416 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-17 23:23:34,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-17 23:23:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:34,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:34,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:34,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-17 23:23:34,423 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:34,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:34,424 INFO L85 PathProgramCache]: Analyzing trace with hash 217198062, now seen corresponding path program 77 times [2022-01-17 23:23:34,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:34,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326649473] [2022-01-17 23:23:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:34,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:34,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326649473] [2022-01-17 23:23:34,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326649473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:34,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:34,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:34,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497405919] [2022-01-17 23:23:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:34,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:34,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:34,733 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:35,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:35,856 INFO L93 Difference]: Finished difference Result 16405 states and 43724 transitions. [2022-01-17 23:23:35,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:35,856 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:35,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:35,880 INFO L225 Difference]: With dead ends: 16405 [2022-01-17 23:23:35,880 INFO L226 Difference]: Without dead ends: 16405 [2022-01-17 23:23:35,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:35,880 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1413 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:35,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 2456 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16405 states. [2022-01-17 23:23:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16405 to 6292. [2022-01-17 23:23:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:36,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-17 23:23:36,005 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-17 23:23:36,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:36,005 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-17 23:23:36,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-17 23:23:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:36,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:36,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:36,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-17 23:23:36,012 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash -232431950, now seen corresponding path program 78 times [2022-01-17 23:23:36,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:36,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413762505] [2022-01-17 23:23:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:36,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:36,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:36,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413762505] [2022-01-17 23:23:36,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413762505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:36,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:36,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:36,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921439610] [2022-01-17 23:23:36,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:36,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:36,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:36,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:36,409 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:37,834 INFO L93 Difference]: Finished difference Result 19219 states and 51092 transitions. [2022-01-17 23:23:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:37,861 INFO L225 Difference]: With dead ends: 19219 [2022-01-17 23:23:37,861 INFO L226 Difference]: Without dead ends: 19219 [2022-01-17 23:23:37,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:37,863 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1250 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:37,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 3894 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19219 states. [2022-01-17 23:23:37,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19219 to 6310. [2022-01-17 23:23:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6308 states have (on average 2.706087507926443) internal successors, (17070), 6309 states have internal predecessors, (17070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:37,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 17070 transitions. [2022-01-17 23:23:37,999 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 17070 transitions. Word has length 130 [2022-01-17 23:23:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:37,999 INFO L470 AbstractCegarLoop]: Abstraction has 6310 states and 17070 transitions. [2022-01-17 23:23:37,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 17070 transitions. [2022-01-17 23:23:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:38,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:38,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:38,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-17 23:23:38,006 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1856381458, now seen corresponding path program 79 times [2022-01-17 23:23:38,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:38,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947231724] [2022-01-17 23:23:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:38,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:38,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947231724] [2022-01-17 23:23:38,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947231724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:38,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:38,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:38,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890780156] [2022-01-17 23:23:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:38,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:38,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:38,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:38,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:38,365 INFO L87 Difference]: Start difference. First operand 6310 states and 17070 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:39,928 INFO L93 Difference]: Finished difference Result 17437 states and 46060 transitions. [2022-01-17 23:23:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:39,928 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:39,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:39,954 INFO L225 Difference]: With dead ends: 17437 [2022-01-17 23:23:39,954 INFO L226 Difference]: Without dead ends: 17437 [2022-01-17 23:23:39,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:23:39,955 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1436 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:39,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 2476 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:39,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17437 states. [2022-01-17 23:23:40,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17437 to 6256. [2022-01-17 23:23:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-17 23:23:40,099 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-17 23:23:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:40,099 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-17 23:23:40,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-17 23:23:40,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:40,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:40,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:40,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-17 23:23:40,107 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:40,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:40,107 INFO L85 PathProgramCache]: Analyzing trace with hash 698223544, now seen corresponding path program 80 times [2022-01-17 23:23:40,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:40,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830683109] [2022-01-17 23:23:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:40,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:40,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:40,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830683109] [2022-01-17 23:23:40,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830683109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:40,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:40,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:40,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682944878] [2022-01-17 23:23:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:40,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:40,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:40,489 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:41,915 INFO L93 Difference]: Finished difference Result 18845 states and 49515 transitions. [2022-01-17 23:23:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:41,916 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:41,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:41,941 INFO L225 Difference]: With dead ends: 18845 [2022-01-17 23:23:41,941 INFO L226 Difference]: Without dead ends: 18845 [2022-01-17 23:23:41,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:41,942 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1221 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:41,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 4140 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2022-01-17 23:23:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 6292. [2022-01-17 23:23:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-17 23:23:42,082 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-17 23:23:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:42,083 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-17 23:23:42,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-17 23:23:42,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:42,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:42,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:42,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-17 23:23:42,090 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:42,090 INFO L85 PathProgramCache]: Analyzing trace with hash -925725964, now seen corresponding path program 81 times [2022-01-17 23:23:42,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:42,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073749069] [2022-01-17 23:23:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:42,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:42,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:42,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073749069] [2022-01-17 23:23:42,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073749069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:42,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:42,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:42,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854503578] [2022-01-17 23:23:42,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:42,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:42,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:42,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:42,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:42,499 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:43,940 INFO L93 Difference]: Finished difference Result 19795 states and 51641 transitions. [2022-01-17 23:23:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:43,940 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:43,966 INFO L225 Difference]: With dead ends: 19795 [2022-01-17 23:23:43,967 INFO L226 Difference]: Without dead ends: 19795 [2022-01-17 23:23:43,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:43,967 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1401 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:43,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1401 Valid, 4148 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:23:43,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19795 states. [2022-01-17 23:23:44,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19795 to 6274. [2022-01-17 23:23:44,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6274 states, 6272 states have (on average 2.7050382653061225) internal successors, (16966), 6273 states have internal predecessors, (16966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 16966 transitions. [2022-01-17 23:23:44,151 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 16966 transitions. Word has length 130 [2022-01-17 23:23:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:44,151 INFO L470 AbstractCegarLoop]: Abstraction has 6274 states and 16966 transitions. [2022-01-17 23:23:44,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 16966 transitions. [2022-01-17 23:23:44,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:44,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:44,158 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, 1] [2022-01-17 23:23:44,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-17 23:23:44,158 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:44,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:44,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1952153552, now seen corresponding path program 82 times [2022-01-17 23:23:44,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:44,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852940923] [2022-01-17 23:23:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:44,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:44,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:44,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852940923] [2022-01-17 23:23:44,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852940923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:44,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:44,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:44,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539819405] [2022-01-17 23:23:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:44,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:44,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:44,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:44,479 INFO L87 Difference]: Start difference. First operand 6274 states and 16966 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:46,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:46,108 INFO L93 Difference]: Finished difference Result 19031 states and 49821 transitions. [2022-01-17 23:23:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:23:46,108 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:46,135 INFO L225 Difference]: With dead ends: 19031 [2022-01-17 23:23:46,135 INFO L226 Difference]: Without dead ends: 19031 [2022-01-17 23:23:46,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:23:46,136 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1440 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:46,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2537 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19031 states. [2022-01-17 23:23:46,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19031 to 6292. [2022-01-17 23:23:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-17 23:23:46,293 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-17 23:23:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:46,294 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-17 23:23:46,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-17 23:23:46,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:46,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:46,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:46,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-17 23:23:46,302 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:46,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash -644174570, now seen corresponding path program 83 times [2022-01-17 23:23:46,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:46,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498655593] [2022-01-17 23:23:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:46,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:46,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498655593] [2022-01-17 23:23:46,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498655593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:46,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:46,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:46,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472085215] [2022-01-17 23:23:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:46,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:46,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:46,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:46,601 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:47,770 INFO L93 Difference]: Finished difference Result 15843 states and 41589 transitions. [2022-01-17 23:23:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:47,791 INFO L225 Difference]: With dead ends: 15843 [2022-01-17 23:23:47,791 INFO L226 Difference]: Without dead ends: 15843 [2022-01-17 23:23:47,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:47,792 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1188 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:47,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 2847 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15843 states. [2022-01-17 23:23:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15843 to 6112. [2022-01-17 23:23:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 6110 states have (on average 2.700163666121113) internal successors, (16498), 6111 states have internal predecessors, (16498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 16498 transitions. [2022-01-17 23:23:47,906 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 16498 transitions. Word has length 130 [2022-01-17 23:23:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:47,906 INFO L470 AbstractCegarLoop]: Abstraction has 6112 states and 16498 transitions. [2022-01-17 23:23:47,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 16498 transitions. [2022-01-17 23:23:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:47,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:47,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:47,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-17 23:23:47,914 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:47,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:47,914 INFO L85 PathProgramCache]: Analyzing trace with hash -81873084, now seen corresponding path program 84 times [2022-01-17 23:23:47,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:47,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114770914] [2022-01-17 23:23:47,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:47,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:48,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:48,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114770914] [2022-01-17 23:23:48,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114770914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:48,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:48,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:48,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301890897] [2022-01-17 23:23:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:48,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:48,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:48,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:48,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:48,306 INFO L87 Difference]: Start difference. First operand 6112 states and 16498 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:49,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:49,678 INFO L93 Difference]: Finished difference Result 14921 states and 39481 transitions. [2022-01-17 23:23:49,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:49,678 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:49,698 INFO L225 Difference]: With dead ends: 14921 [2022-01-17 23:23:49,698 INFO L226 Difference]: Without dead ends: 14921 [2022-01-17 23:23:49,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:49,698 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1336 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:49,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 3707 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14921 states. [2022-01-17 23:23:49,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14921 to 6306. [2022-01-17 23:23:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6306 states, 6304 states have (on average 2.706218274111675) internal successors, (17060), 6305 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6306 states to 6306 states and 17060 transitions. [2022-01-17 23:23:49,823 INFO L78 Accepts]: Start accepts. Automaton has 6306 states and 17060 transitions. Word has length 130 [2022-01-17 23:23:49,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:49,824 INFO L470 AbstractCegarLoop]: Abstraction has 6306 states and 17060 transitions. [2022-01-17 23:23:49,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6306 states and 17060 transitions. [2022-01-17 23:23:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:49,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:49,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:49,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-17 23:23:49,830 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:49,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1616766090, now seen corresponding path program 85 times [2022-01-17 23:23:49,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:49,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656901541] [2022-01-17 23:23:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:49,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:50,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:50,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:50,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656901541] [2022-01-17 23:23:50,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656901541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:50,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:50,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:23:50,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220426696] [2022-01-17 23:23:50,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:50,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:23:50,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:50,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:23:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:23:50,171 INFO L87 Difference]: Start difference. First operand 6306 states and 17060 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:51,660 INFO L93 Difference]: Finished difference Result 14829 states and 39209 transitions. [2022-01-17 23:23:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:23:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:51,680 INFO L225 Difference]: With dead ends: 14829 [2022-01-17 23:23:51,681 INFO L226 Difference]: Without dead ends: 14829 [2022-01-17 23:23:51,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:23:51,681 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1452 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:51,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 2381 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14829 states. [2022-01-17 23:23:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14829 to 6288. [2022-01-17 23:23:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-17 23:23:51,796 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-17 23:23:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:51,796 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-17 23:23:51,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-17 23:23:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:51,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:51,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:23:51,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-17 23:23:51,803 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:51,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:51,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1430638074, now seen corresponding path program 86 times [2022-01-17 23:23:51,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:51,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386318680] [2022-01-17 23:23:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:51,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:52,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:52,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386318680] [2022-01-17 23:23:52,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386318680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:52,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:52,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:52,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610721344] [2022-01-17 23:23:52,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:52,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:52,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:52,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:52,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:52,153 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:53,252 INFO L93 Difference]: Finished difference Result 12387 states and 32796 transitions. [2022-01-17 23:23:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:23:53,252 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:53,268 INFO L225 Difference]: With dead ends: 12387 [2022-01-17 23:23:53,268 INFO L226 Difference]: Without dead ends: 12387 [2022-01-17 23:23:53,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:23:53,269 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1261 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:53,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 2674 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:23:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states. [2022-01-17 23:23:53,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 6252. [2022-01-17 23:23:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6252 states, 6250 states have (on average 2.70464) internal successors, (16904), 6251 states have internal predecessors, (16904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6252 states to 6252 states and 16904 transitions. [2022-01-17 23:23:53,368 INFO L78 Accepts]: Start accepts. Automaton has 6252 states and 16904 transitions. Word has length 130 [2022-01-17 23:23:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:53,368 INFO L470 AbstractCegarLoop]: Abstraction has 6252 states and 16904 transitions. [2022-01-17 23:23:53,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6252 states and 16904 transitions. [2022-01-17 23:23:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:53,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:53,375 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] [2022-01-17 23:23:53,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-17 23:23:53,375 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1554948842, now seen corresponding path program 87 times [2022-01-17 23:23:53,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85096273] [2022-01-17 23:23:53,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:53,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:53,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85096273] [2022-01-17 23:23:53,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85096273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:53,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:53,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:23:53,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817950622] [2022-01-17 23:23:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:53,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:23:53,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:53,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:23:53,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:23:53,751 INFO L87 Difference]: Start difference. First operand 6252 states and 16904 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:55,148 INFO L93 Difference]: Finished difference Result 15081 states and 39983 transitions. [2022-01-17 23:23:55,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:23:55,148 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:55,167 INFO L225 Difference]: With dead ends: 15081 [2022-01-17 23:23:55,167 INFO L226 Difference]: Without dead ends: 15081 [2022-01-17 23:23:55,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:23:55,168 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1483 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:55,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 3629 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:23:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15081 states. [2022-01-17 23:23:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15081 to 6288. [2022-01-17 23:23:55,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-17 23:23:55,298 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-17 23:23:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:55,298 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-17 23:23:55,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-17 23:23:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:55,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:55,305 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, 1] [2022-01-17 23:23:55,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-17 23:23:55,305 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:55,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:55,305 INFO L85 PathProgramCache]: Analyzing trace with hash -69000666, now seen corresponding path program 88 times [2022-01-17 23:23:55,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:55,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181983810] [2022-01-17 23:23:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:55,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:55,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:55,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181983810] [2022-01-17 23:23:55,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181983810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:55,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:55,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:23:55,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863874552] [2022-01-17 23:23:55,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:55,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:23:55,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:55,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:23:55,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:23:55,850 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:23:58,485 INFO L93 Difference]: Finished difference Result 13334 states and 34779 transitions. [2022-01-17 23:23:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:23:58,485 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:23:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:23:58,504 INFO L225 Difference]: With dead ends: 13334 [2022-01-17 23:23:58,504 INFO L226 Difference]: Without dead ends: 13334 [2022-01-17 23:23:58,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:23:58,505 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1209 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:23:58,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 3577 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:23:58,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2022-01-17 23:23:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 6346. [2022-01-17 23:23:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-17 23:23:58,632 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-17 23:23:58,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:23:58,632 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-17 23:23:58,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:23:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-17 23:23:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:23:58,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:23:58,640 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] [2022-01-17 23:23:58,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-17 23:23:58,640 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:23:58,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:23:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1486088446, now seen corresponding path program 89 times [2022-01-17 23:23:58,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:23:58,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162965466] [2022-01-17 23:23:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:23:58,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:23:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:23:58,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:23:58,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:23:58,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162965466] [2022-01-17 23:23:58,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162965466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:23:58,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:23:58,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:23:58,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264028916] [2022-01-17 23:23:58,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:23:58,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:23:58,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:23:58,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:23:58,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:23:58,937 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:00,092 INFO L93 Difference]: Finished difference Result 19199 states and 50355 transitions. [2022-01-17 23:24:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:00,092 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:00,122 INFO L225 Difference]: With dead ends: 19199 [2022-01-17 23:24:00,122 INFO L226 Difference]: Without dead ends: 19199 [2022-01-17 23:24:00,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:00,123 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1311 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:00,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 2843 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:00,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19199 states. [2022-01-17 23:24:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19199 to 6364. [2022-01-17 23:24:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6364 states, 6362 states have (on average 2.7043382584093054) internal successors, (17205), 6363 states have internal predecessors, (17205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 17205 transitions. [2022-01-17 23:24:00,297 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 17205 transitions. Word has length 130 [2022-01-17 23:24:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:00,297 INFO L470 AbstractCegarLoop]: Abstraction has 6364 states and 17205 transitions. [2022-01-17 23:24:00,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 17205 transitions. [2022-01-17 23:24:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:00,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:00,305 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, 1] [2022-01-17 23:24:00,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-17 23:24:00,305 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:00,306 INFO L85 PathProgramCache]: Analyzing trace with hash 212550728, now seen corresponding path program 90 times [2022-01-17 23:24:00,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:00,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446940125] [2022-01-17 23:24:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:00,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:00,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:00,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446940125] [2022-01-17 23:24:00,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446940125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:00,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:00,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:00,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028481469] [2022-01-17 23:24:00,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:00,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:00,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:00,666 INFO L87 Difference]: Start difference. First operand 6364 states and 17205 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:02,487 INFO L93 Difference]: Finished difference Result 16509 states and 43309 transitions. [2022-01-17 23:24:02,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:02,488 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:02,512 INFO L225 Difference]: With dead ends: 16509 [2022-01-17 23:24:02,513 INFO L226 Difference]: Without dead ends: 16509 [2022-01-17 23:24:02,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:24:02,513 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1305 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:02,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2782 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:24:02,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16509 states. [2022-01-17 23:24:02,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16509 to 6346. [2022-01-17 23:24:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-17 23:24:02,655 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-17 23:24:02,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:02,655 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-17 23:24:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-17 23:24:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:02,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:02,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:02,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-17 23:24:02,662 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash 520449510, now seen corresponding path program 91 times [2022-01-17 23:24:02,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689186898] [2022-01-17 23:24:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:02,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:02,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:02,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689186898] [2022-01-17 23:24:02,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689186898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:02,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:02,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:02,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049933519] [2022-01-17 23:24:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:02,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:02,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:02,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:02,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:02,963 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:04,140 INFO L93 Difference]: Finished difference Result 14435 states and 37600 transitions. [2022-01-17 23:24:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:04,140 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:04,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:04,160 INFO L225 Difference]: With dead ends: 14435 [2022-01-17 23:24:04,161 INFO L226 Difference]: Without dead ends: 14435 [2022-01-17 23:24:04,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:04,161 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1256 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:04,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 2763 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2022-01-17 23:24:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 6216. [2022-01-17 23:24:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6216 states, 6214 states have (on average 2.7035725780495654) internal successors, (16800), 6215 states have internal predecessors, (16800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6216 states to 6216 states and 16800 transitions. [2022-01-17 23:24:04,272 INFO L78 Accepts]: Start accepts. Automaton has 6216 states and 16800 transitions. Word has length 130 [2022-01-17 23:24:04,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:04,273 INFO L470 AbstractCegarLoop]: Abstraction has 6216 states and 16800 transitions. [2022-01-17 23:24:04,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 6216 states and 16800 transitions. [2022-01-17 23:24:04,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:04,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:04,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:04,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-17 23:24:04,279 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:04,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1771330512, now seen corresponding path program 92 times [2022-01-17 23:24:04,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:04,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815523350] [2022-01-17 23:24:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:04,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:04,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:04,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815523350] [2022-01-17 23:24:04,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815523350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:04,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:04,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:24:04,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378957844] [2022-01-17 23:24:04,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:04,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:24:04,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:24:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:24:04,682 INFO L87 Difference]: Start difference. First operand 6216 states and 16800 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:06,123 INFO L93 Difference]: Finished difference Result 15749 states and 41859 transitions. [2022-01-17 23:24:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:06,145 INFO L225 Difference]: With dead ends: 15749 [2022-01-17 23:24:06,146 INFO L226 Difference]: Without dead ends: 15749 [2022-01-17 23:24:06,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:24:06,146 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1344 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3881 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:06,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3881 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15749 states. [2022-01-17 23:24:06,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15749 to 6288. [2022-01-17 23:24:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-17 23:24:06,274 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-17 23:24:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:06,275 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-17 23:24:06,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-17 23:24:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:06,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:06,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:06,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-17 23:24:06,282 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:06,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:06,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1321700500, now seen corresponding path program 93 times [2022-01-17 23:24:06,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:06,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964988746] [2022-01-17 23:24:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:06,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:06,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:06,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964988746] [2022-01-17 23:24:06,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964988746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:06,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:06,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:24:06,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206108569] [2022-01-17 23:24:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:06,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:24:06,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:24:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:24:06,674 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:08,101 INFO L93 Difference]: Finished difference Result 18563 states and 49227 transitions. [2022-01-17 23:24:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:08,126 INFO L225 Difference]: With dead ends: 18563 [2022-01-17 23:24:08,126 INFO L226 Difference]: Without dead ends: 18563 [2022-01-17 23:24:08,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:24:08,127 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1251 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:08,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 3888 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:24:08,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18563 states. [2022-01-17 23:24:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18563 to 6306. [2022-01-17 23:24:08,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6306 states, 6304 states have (on average 2.706218274111675) internal successors, (17060), 6305 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6306 states to 6306 states and 17060 transitions. [2022-01-17 23:24:08,265 INFO L78 Accepts]: Start accepts. Automaton has 6306 states and 17060 transitions. Word has length 130 [2022-01-17 23:24:08,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:08,265 INFO L470 AbstractCegarLoop]: Abstraction has 6306 states and 17060 transitions. [2022-01-17 23:24:08,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:08,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6306 states and 17060 transitions. [2022-01-17 23:24:08,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:08,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:08,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:08,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-17 23:24:08,272 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:08,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash -302249008, now seen corresponding path program 94 times [2022-01-17 23:24:08,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:08,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916996648] [2022-01-17 23:24:08,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:08,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:08,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:08,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916996648] [2022-01-17 23:24:08,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916996648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:08,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:08,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:08,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462172409] [2022-01-17 23:24:08,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:08,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:08,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:08,830 INFO L87 Difference]: Start difference. First operand 6306 states and 17060 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:11,560 INFO L93 Difference]: Finished difference Result 13557 states and 35481 transitions. [2022-01-17 23:24:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:11,578 INFO L225 Difference]: With dead ends: 13557 [2022-01-17 23:24:11,578 INFO L226 Difference]: Without dead ends: 13557 [2022-01-17 23:24:11,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:11,579 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1070 mSDsluCounter, 3879 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:11,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 4145 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-17 23:24:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13557 states. [2022-01-17 23:24:11,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13557 to 6366. [2022-01-17 23:24:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6366 states, 6364 states have (on average 2.7042740414833437) internal successors, (17210), 6365 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 17210 transitions. [2022-01-17 23:24:11,695 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 17210 transitions. Word has length 130 [2022-01-17 23:24:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:11,696 INFO L470 AbstractCegarLoop]: Abstraction has 6366 states and 17210 transitions. [2022-01-17 23:24:11,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 17210 transitions. [2022-01-17 23:24:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:11,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:11,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:11,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-17 23:24:11,703 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2042611302, now seen corresponding path program 95 times [2022-01-17 23:24:11,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:11,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584488089] [2022-01-17 23:24:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:11,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:12,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:12,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584488089] [2022-01-17 23:24:12,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584488089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:12,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:12,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:12,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420120900] [2022-01-17 23:24:12,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:12,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:12,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:12,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:12,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:12,272 INFO L87 Difference]: Start difference. First operand 6366 states and 17210 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:14,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:14,975 INFO L93 Difference]: Finished difference Result 13986 states and 36394 transitions. [2022-01-17 23:24:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:14,975 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:14,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:14,992 INFO L225 Difference]: With dead ends: 13986 [2022-01-17 23:24:14,992 INFO L226 Difference]: Without dead ends: 13986 [2022-01-17 23:24:14,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:14,992 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1297 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:14,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 3869 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-01-17 23:24:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 6378. [2022-01-17 23:24:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6376 states have (on average 2.7038895859473024) internal successors, (17240), 6377 states have internal predecessors, (17240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 17240 transitions. [2022-01-17 23:24:15,110 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 17240 transitions. Word has length 130 [2022-01-17 23:24:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:15,110 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 17240 transitions. [2022-01-17 23:24:15,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 17240 transitions. [2022-01-17 23:24:15,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:15,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:15,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:15,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-17 23:24:15,117 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:15,117 INFO L85 PathProgramCache]: Analyzing trace with hash -788681294, now seen corresponding path program 96 times [2022-01-17 23:24:15,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:15,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988558205] [2022-01-17 23:24:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:15,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:15,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:15,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988558205] [2022-01-17 23:24:15,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988558205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:15,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:15,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:15,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003050025] [2022-01-17 23:24:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:15,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:15,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:15,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:15,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:15,415 INFO L87 Difference]: Start difference. First operand 6378 states and 17240 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:16,570 INFO L93 Difference]: Finished difference Result 19963 states and 52476 transitions. [2022-01-17 23:24:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:16,599 INFO L225 Difference]: With dead ends: 19963 [2022-01-17 23:24:16,599 INFO L226 Difference]: Without dead ends: 19963 [2022-01-17 23:24:16,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:16,600 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1437 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:16,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2836 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19963 states. [2022-01-17 23:24:16,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19963 to 6414. [2022-01-17 23:24:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 6412 states have (on average 2.7049282595134123) internal successors, (17344), 6413 states have internal predecessors, (17344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 17344 transitions. [2022-01-17 23:24:16,756 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 17344 transitions. Word has length 130 [2022-01-17 23:24:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:16,756 INFO L470 AbstractCegarLoop]: Abstraction has 6414 states and 17344 transitions. [2022-01-17 23:24:16,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 17344 transitions. [2022-01-17 23:24:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:16,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:16,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:16,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-17 23:24:16,764 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:16,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 909957880, now seen corresponding path program 97 times [2022-01-17 23:24:16,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:16,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35162647] [2022-01-17 23:24:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:16,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:17,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:17,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35162647] [2022-01-17 23:24:17,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35162647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:17,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:17,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:24:17,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924864643] [2022-01-17 23:24:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:17,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:24:17,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:24:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:24:17,181 INFO L87 Difference]: Start difference. First operand 6414 states and 17344 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:18,777 INFO L93 Difference]: Finished difference Result 17273 states and 45430 transitions. [2022-01-17 23:24:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:18,778 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:18,801 INFO L225 Difference]: With dead ends: 17273 [2022-01-17 23:24:18,801 INFO L226 Difference]: Without dead ends: 17273 [2022-01-17 23:24:18,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:24:18,802 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1264 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:18,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 3978 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17273 states. [2022-01-17 23:24:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17273 to 6396. [2022-01-17 23:24:18,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6396 states, 6394 states have (on average 2.7044103847356897) internal successors, (17292), 6395 states have internal predecessors, (17292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6396 states to 6396 states and 17292 transitions. [2022-01-17 23:24:18,934 INFO L78 Accepts]: Start accepts. Automaton has 6396 states and 17292 transitions. Word has length 130 [2022-01-17 23:24:18,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:18,934 INFO L470 AbstractCegarLoop]: Abstraction has 6396 states and 17292 transitions. [2022-01-17 23:24:18,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:18,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6396 states and 17292 transitions. [2022-01-17 23:24:18,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:18,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:18,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:18,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-17 23:24:18,942 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:18,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:18,942 INFO L85 PathProgramCache]: Analyzing trace with hash 790837264, now seen corresponding path program 98 times [2022-01-17 23:24:18,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:18,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779232447] [2022-01-17 23:24:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:18,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:19,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:19,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779232447] [2022-01-17 23:24:19,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779232447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:19,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:19,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:24:19,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802360072] [2022-01-17 23:24:19,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:19,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:24:19,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:24:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:24:19,356 INFO L87 Difference]: Start difference. First operand 6396 states and 17292 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:20,812 INFO L93 Difference]: Finished difference Result 16753 states and 44060 transitions. [2022-01-17 23:24:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:20,813 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:20,835 INFO L225 Difference]: With dead ends: 16753 [2022-01-17 23:24:20,835 INFO L226 Difference]: Without dead ends: 16753 [2022-01-17 23:24:20,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:24:20,836 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1367 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:20,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 3888 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:24:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16753 states. [2022-01-17 23:24:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16753 to 6336. [2022-01-17 23:24:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6334 states have (on average 2.7030312598673825) internal successors, (17121), 6335 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:20,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 17121 transitions. [2022-01-17 23:24:20,962 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 17121 transitions. Word has length 130 [2022-01-17 23:24:20,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:20,962 INFO L470 AbstractCegarLoop]: Abstraction has 6336 states and 17121 transitions. [2022-01-17 23:24:20,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 17121 transitions. [2022-01-17 23:24:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:20,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:20,968 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, 1] [2022-01-17 23:24:20,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-17 23:24:20,968 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:20,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:20,969 INFO L85 PathProgramCache]: Analyzing trace with hash 446243418, now seen corresponding path program 99 times [2022-01-17 23:24:20,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:20,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418312535] [2022-01-17 23:24:20,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:20,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:21,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:21,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418312535] [2022-01-17 23:24:21,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418312535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:21,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:21,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:21,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910619274] [2022-01-17 23:24:21,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:21,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:21,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:21,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:21,293 INFO L87 Difference]: Start difference. First operand 6336 states and 17121 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:22,468 INFO L93 Difference]: Finished difference Result 18481 states and 48259 transitions. [2022-01-17 23:24:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:22,493 INFO L225 Difference]: With dead ends: 18481 [2022-01-17 23:24:22,493 INFO L226 Difference]: Without dead ends: 18481 [2022-01-17 23:24:22,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:22,493 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1362 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:22,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 2606 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18481 states. [2022-01-17 23:24:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18481 to 6346. [2022-01-17 23:24:22,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-17 23:24:22,636 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-17 23:24:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:22,636 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-17 23:24:22,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-17 23:24:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:22,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:22,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:22,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-17 23:24:22,643 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1177706090, now seen corresponding path program 100 times [2022-01-17 23:24:22,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:22,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381749418] [2022-01-17 23:24:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:22,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:23,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381749418] [2022-01-17 23:24:23,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381749418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:23,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:23,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:24:23,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914809902] [2022-01-17 23:24:23,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:23,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:24:23,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:24:23,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:24:23,193 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:25,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:25,971 INFO L93 Difference]: Finished difference Result 16356 states and 42801 transitions. [2022-01-17 23:24:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:24:25,972 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:25,990 INFO L225 Difference]: With dead ends: 16356 [2022-01-17 23:24:25,990 INFO L226 Difference]: Without dead ends: 16356 [2022-01-17 23:24:25,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:24:25,990 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1179 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:25,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 3865 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:24:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2022-01-17 23:24:26,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 6342. [2022-01-17 23:24:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6342 states, 6340 states have (on average 2.703943217665615) internal successors, (17143), 6341 states have internal predecessors, (17143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 17143 transitions. [2022-01-17 23:24:26,102 INFO L78 Accepts]: Start accepts. Automaton has 6342 states and 17143 transitions. Word has length 130 [2022-01-17 23:24:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:26,102 INFO L470 AbstractCegarLoop]: Abstraction has 6342 states and 17143 transitions. [2022-01-17 23:24:26,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6342 states and 17143 transitions. [2022-01-17 23:24:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:26,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:26,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:26,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-17 23:24:26,110 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2133481258, now seen corresponding path program 101 times [2022-01-17 23:24:26,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:26,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335978336] [2022-01-17 23:24:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:26,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:26,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335978336] [2022-01-17 23:24:26,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335978336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:26,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:26,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:26,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411796894] [2022-01-17 23:24:26,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:26,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:26,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:26,410 INFO L87 Difference]: Start difference. First operand 6342 states and 17143 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:27,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:27,585 INFO L93 Difference]: Finished difference Result 17875 states and 46033 transitions. [2022-01-17 23:24:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:27,609 INFO L225 Difference]: With dead ends: 17875 [2022-01-17 23:24:27,609 INFO L226 Difference]: Without dead ends: 17875 [2022-01-17 23:24:27,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:27,609 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1513 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:27,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 2872 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17875 states. [2022-01-17 23:24:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17875 to 6144. [2022-01-17 23:24:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6144 states, 6142 states have (on average 2.701400195376099) internal successors, (16592), 6143 states have internal predecessors, (16592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:27,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6144 states to 6144 states and 16592 transitions. [2022-01-17 23:24:27,733 INFO L78 Accepts]: Start accepts. Automaton has 6144 states and 16592 transitions. Word has length 130 [2022-01-17 23:24:27,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:27,734 INFO L470 AbstractCegarLoop]: Abstraction has 6144 states and 16592 transitions. [2022-01-17 23:24:27,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:27,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6144 states and 16592 transitions. [2022-01-17 23:24:27,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:27,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:27,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:27,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-17 23:24:27,740 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:27,740 INFO L85 PathProgramCache]: Analyzing trace with hash 746797488, now seen corresponding path program 102 times [2022-01-17 23:24:27,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:27,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397751477] [2022-01-17 23:24:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:27,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:28,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:28,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397751477] [2022-01-17 23:24:28,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397751477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:28,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:28,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:28,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895755684] [2022-01-17 23:24:28,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:28,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:28,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:28,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:28,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:28,042 INFO L87 Difference]: Start difference. First operand 6144 states and 16592 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:28,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:28,914 INFO L93 Difference]: Finished difference Result 7460 states and 19453 transitions. [2022-01-17 23:24:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:24:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:28,924 INFO L225 Difference]: With dead ends: 7460 [2022-01-17 23:24:28,924 INFO L226 Difference]: Without dead ends: 7460 [2022-01-17 23:24:28,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:24:28,925 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 778 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:28,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2371 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:28,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7460 states. [2022-01-17 23:24:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7460 to 6185. [2022-01-17 23:24:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6185 states, 6183 states have (on average 2.6993368914766296) internal successors, (16690), 6184 states have internal predecessors, (16690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6185 states to 6185 states and 16690 transitions. [2022-01-17 23:24:29,000 INFO L78 Accepts]: Start accepts. Automaton has 6185 states and 16690 transitions. Word has length 130 [2022-01-17 23:24:29,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:29,000 INFO L470 AbstractCegarLoop]: Abstraction has 6185 states and 16690 transitions. [2022-01-17 23:24:29,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6185 states and 16690 transitions. [2022-01-17 23:24:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:29,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:29,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:29,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-17 23:24:29,007 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash -202181970, now seen corresponding path program 103 times [2022-01-17 23:24:29,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990101029] [2022-01-17 23:24:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:29,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:29,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:29,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990101029] [2022-01-17 23:24:29,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990101029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:29,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:29,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:29,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382611115] [2022-01-17 23:24:29,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:29,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:29,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:29,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:29,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:29,348 INFO L87 Difference]: Start difference. First operand 6185 states and 16690 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:30,648 INFO L93 Difference]: Finished difference Result 10563 states and 28362 transitions. [2022-01-17 23:24:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:24:30,649 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:30,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:30,663 INFO L225 Difference]: With dead ends: 10563 [2022-01-17 23:24:30,663 INFO L226 Difference]: Without dead ends: 10563 [2022-01-17 23:24:30,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:24:30,663 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1143 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:30,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2279 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2022-01-17 23:24:30,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 6329. [2022-01-17 23:24:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-17 23:24:30,793 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-17 23:24:30,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:30,793 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-17 23:24:30,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-17 23:24:30,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:30,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:30,800 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] [2022-01-17 23:24:30,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-17 23:24:30,800 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:30,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:30,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1730958194, now seen corresponding path program 104 times [2022-01-17 23:24:30,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:30,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018067547] [2022-01-17 23:24:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:30,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:31,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:31,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018067547] [2022-01-17 23:24:31,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018067547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:31,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:31,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:31,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839587491] [2022-01-17 23:24:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:31,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:31,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:31,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:31,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:31,118 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:32,262 INFO L93 Difference]: Finished difference Result 13865 states and 37086 transitions. [2022-01-17 23:24:32,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:32,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:32,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:32,281 INFO L225 Difference]: With dead ends: 13865 [2022-01-17 23:24:32,281 INFO L226 Difference]: Without dead ends: 13865 [2022-01-17 23:24:32,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:32,281 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1121 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:32,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 2382 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2022-01-17 23:24:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 6365. [2022-01-17 23:24:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6365 states, 6363 states have (on average 2.7046990413327046) internal successors, (17210), 6364 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6365 states to 6365 states and 17210 transitions. [2022-01-17 23:24:32,397 INFO L78 Accepts]: Start accepts. Automaton has 6365 states and 17210 transitions. Word has length 130 [2022-01-17 23:24:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:32,397 INFO L470 AbstractCegarLoop]: Abstraction has 6365 states and 17210 transitions. [2022-01-17 23:24:32,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 6365 states and 17210 transitions. [2022-01-17 23:24:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:32,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:32,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:32,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-17 23:24:32,404 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:32,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:32,404 INFO L85 PathProgramCache]: Analyzing trace with hash 716419954, now seen corresponding path program 105 times [2022-01-17 23:24:32,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:32,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480493985] [2022-01-17 23:24:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:32,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:32,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:32,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480493985] [2022-01-17 23:24:32,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480493985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:32,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:32,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:32,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226917436] [2022-01-17 23:24:32,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:32,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:32,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:32,745 INFO L87 Difference]: Start difference. First operand 6365 states and 17210 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:34,168 INFO L93 Difference]: Finished difference Result 13541 states and 36150 transitions. [2022-01-17 23:24:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:24:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:34,186 INFO L225 Difference]: With dead ends: 13541 [2022-01-17 23:24:34,186 INFO L226 Difference]: Without dead ends: 13541 [2022-01-17 23:24:34,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:24:34,187 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1223 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:34,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1223 Valid, 2317 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:34,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2022-01-17 23:24:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 6383. [2022-01-17 23:24:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 6381 states have (on average 2.705218617771509) internal successors, (17262), 6382 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 17262 transitions. [2022-01-17 23:24:34,295 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 17262 transitions. Word has length 130 [2022-01-17 23:24:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:34,295 INFO L470 AbstractCegarLoop]: Abstraction has 6383 states and 17262 transitions. [2022-01-17 23:24:34,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 17262 transitions. [2022-01-17 23:24:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:34,301 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:34,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:34,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-17 23:24:34,302 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash -907529554, now seen corresponding path program 106 times [2022-01-17 23:24:34,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:34,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661153642] [2022-01-17 23:24:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:34,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:34,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:34,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661153642] [2022-01-17 23:24:34,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661153642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:34,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:34,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:34,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343537624] [2022-01-17 23:24:34,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:34,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:34,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:34,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:34,606 INFO L87 Difference]: Start difference. First operand 6383 states and 17262 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:35,695 INFO L93 Difference]: Finished difference Result 11759 states and 31118 transitions. [2022-01-17 23:24:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:35,696 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:35,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:35,712 INFO L225 Difference]: With dead ends: 11759 [2022-01-17 23:24:35,712 INFO L226 Difference]: Without dead ends: 11759 [2022-01-17 23:24:35,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:35,712 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1303 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:35,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2306 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:24:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11759 states. [2022-01-17 23:24:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11759 to 6329. [2022-01-17 23:24:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-17 23:24:35,826 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-17 23:24:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:35,826 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-17 23:24:35,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-17 23:24:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:35,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:35,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:35,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-17 23:24:35,834 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:35,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1381776708, now seen corresponding path program 107 times [2022-01-17 23:24:35,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:35,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470855557] [2022-01-17 23:24:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:35,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:36,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470855557] [2022-01-17 23:24:36,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470855557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:36,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:36,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:36,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599656475] [2022-01-17 23:24:36,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:36,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:36,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:36,210 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:37,686 INFO L93 Difference]: Finished difference Result 13403 states and 35201 transitions. [2022-01-17 23:24:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:24:37,686 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:37,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:37,705 INFO L225 Difference]: With dead ends: 13403 [2022-01-17 23:24:37,705 INFO L226 Difference]: Without dead ends: 13403 [2022-01-17 23:24:37,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:24:37,705 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1178 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:37,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2516 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2022-01-17 23:24:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 6401. [2022-01-17 23:24:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-17 23:24:37,819 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-17 23:24:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:37,819 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-17 23:24:37,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-17 23:24:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:37,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:37,826 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] [2022-01-17 23:24:37,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-17 23:24:37,826 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:37,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1898652348, now seen corresponding path program 108 times [2022-01-17 23:24:37,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:37,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841899952] [2022-01-17 23:24:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:37,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:38,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:38,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841899952] [2022-01-17 23:24:38,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841899952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:38,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:38,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:38,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597869310] [2022-01-17 23:24:38,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:38,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:38,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:38,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:38,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:38,132 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:39,292 INFO L93 Difference]: Finished difference Result 16217 states and 42569 transitions. [2022-01-17 23:24:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:39,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:39,317 INFO L225 Difference]: With dead ends: 16217 [2022-01-17 23:24:39,317 INFO L226 Difference]: Without dead ends: 16217 [2022-01-17 23:24:39,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:39,317 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1307 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:39,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 2756 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:39,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16217 states. [2022-01-17 23:24:39,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16217 to 6419. [2022-01-17 23:24:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6419 states, 6417 states have (on average 2.706249026024622) internal successors, (17366), 6418 states have internal predecessors, (17366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6419 states to 6419 states and 17366 transitions. [2022-01-17 23:24:39,456 INFO L78 Accepts]: Start accepts. Automaton has 6419 states and 17366 transitions. Word has length 130 [2022-01-17 23:24:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:39,457 INFO L470 AbstractCegarLoop]: Abstraction has 6419 states and 17366 transitions. [2022-01-17 23:24:39,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6419 states and 17366 transitions. [2022-01-17 23:24:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:39,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:39,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:39,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-17 23:24:39,467 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:39,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash 274702840, now seen corresponding path program 109 times [2022-01-17 23:24:39,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:39,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874081405] [2022-01-17 23:24:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:39,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:39,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:39,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874081405] [2022-01-17 23:24:39,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874081405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:39,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:39,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:39,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741284192] [2022-01-17 23:24:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:39,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:39,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:39,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:39,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:39,785 INFO L87 Difference]: Start difference. First operand 6419 states and 17366 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:40,940 INFO L93 Difference]: Finished difference Result 14435 states and 37537 transitions. [2022-01-17 23:24:40,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:40,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:40,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:40,959 INFO L225 Difference]: With dead ends: 14435 [2022-01-17 23:24:40,959 INFO L226 Difference]: Without dead ends: 14435 [2022-01-17 23:24:40,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:40,960 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1219 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:40,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 2806 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:40,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2022-01-17 23:24:41,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 6365. [2022-01-17 23:24:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6365 states, 6363 states have (on average 2.7046990413327046) internal successors, (17210), 6364 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6365 states to 6365 states and 17210 transitions. [2022-01-17 23:24:41,072 INFO L78 Accepts]: Start accepts. Automaton has 6365 states and 17210 transitions. Word has length 130 [2022-01-17 23:24:41,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:41,072 INFO L470 AbstractCegarLoop]: Abstraction has 6365 states and 17210 transitions. [2022-01-17 23:24:41,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6365 states and 17210 transitions. [2022-01-17 23:24:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:41,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:41,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:41,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-17 23:24:41,079 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 717130074, now seen corresponding path program 110 times [2022-01-17 23:24:41,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:41,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57211679] [2022-01-17 23:24:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:41,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:41,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:41,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57211679] [2022-01-17 23:24:41,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57211679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:41,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:41,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:41,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058112284] [2022-01-17 23:24:41,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:41,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:41,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:41,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:41,409 INFO L87 Difference]: Start difference. First operand 6365 states and 17210 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:42,514 INFO L93 Difference]: Finished difference Result 12915 states and 33845 transitions. [2022-01-17 23:24:42,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:42,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:42,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:42,532 INFO L225 Difference]: With dead ends: 12915 [2022-01-17 23:24:42,532 INFO L226 Difference]: Without dead ends: 12915 [2022-01-17 23:24:42,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:42,533 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1375 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:42,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 2441 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:42,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12915 states. [2022-01-17 23:24:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12915 to 6401. [2022-01-17 23:24:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-17 23:24:42,636 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-17 23:24:42,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:42,636 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-17 23:24:42,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-17 23:24:42,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:42,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:42,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:42,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-17 23:24:42,643 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:42,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash -906819434, now seen corresponding path program 111 times [2022-01-17 23:24:42,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:42,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212362023] [2022-01-17 23:24:42,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:42,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:42,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:42,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212362023] [2022-01-17 23:24:42,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212362023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:42,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:42,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:42,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446218413] [2022-01-17 23:24:42,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:42,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:42,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:42,942 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:44,085 INFO L93 Difference]: Finished difference Result 13865 states and 35971 transitions. [2022-01-17 23:24:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:44,085 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:44,105 INFO L225 Difference]: With dead ends: 13865 [2022-01-17 23:24:44,105 INFO L226 Difference]: Without dead ends: 13865 [2022-01-17 23:24:44,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:44,105 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1338 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:44,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2739 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2022-01-17 23:24:44,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 6383. [2022-01-17 23:24:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 6381 states have (on average 2.705218617771509) internal successors, (17262), 6382 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 17262 transitions. [2022-01-17 23:24:44,242 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 17262 transitions. Word has length 130 [2022-01-17 23:24:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:44,243 INFO L470 AbstractCegarLoop]: Abstraction has 6383 states and 17262 transitions. [2022-01-17 23:24:44,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:44,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 17262 transitions. [2022-01-17 23:24:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:44,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:44,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:44,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-17 23:24:44,250 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:44,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1971060082, now seen corresponding path program 112 times [2022-01-17 23:24:44,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:44,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760021890] [2022-01-17 23:24:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:44,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:44,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:44,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760021890] [2022-01-17 23:24:44,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760021890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:44,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:44,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:44,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642684571] [2022-01-17 23:24:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:44,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:44,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:44,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:44,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:44,576 INFO L87 Difference]: Start difference. First operand 6383 states and 17262 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:46,052 INFO L93 Difference]: Finished difference Result 13101 states and 34151 transitions. [2022-01-17 23:24:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:24:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:46,071 INFO L225 Difference]: With dead ends: 13101 [2022-01-17 23:24:46,071 INFO L226 Difference]: Without dead ends: 13101 [2022-01-17 23:24:46,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:24:46,072 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1386 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:46,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 2361 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13101 states. [2022-01-17 23:24:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13101 to 6401. [2022-01-17 23:24:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-17 23:24:46,176 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-17 23:24:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:46,176 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-17 23:24:46,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-17 23:24:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:46,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:46,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:46,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-17 23:24:46,184 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:46,184 INFO L85 PathProgramCache]: Analyzing trace with hash -625268040, now seen corresponding path program 113 times [2022-01-17 23:24:46,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:46,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943844818] [2022-01-17 23:24:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:46,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:46,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:46,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943844818] [2022-01-17 23:24:46,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943844818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:46,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:46,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:46,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354623216] [2022-01-17 23:24:46,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:46,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:46,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:46,487 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:47,690 INFO L93 Difference]: Finished difference Result 9913 states and 25919 transitions. [2022-01-17 23:24:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:47,690 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:47,702 INFO L225 Difference]: With dead ends: 9913 [2022-01-17 23:24:47,702 INFO L226 Difference]: Without dead ends: 9913 [2022-01-17 23:24:47,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:47,703 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1121 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:47,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 2689 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-01-17 23:24:47,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 6329. [2022-01-17 23:24:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-17 23:24:47,792 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-17 23:24:47,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:47,792 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-17 23:24:47,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:47,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-17 23:24:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:47,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:47,800 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] [2022-01-17 23:24:47,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-17 23:24:47,800 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:47,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash 183541638, now seen corresponding path program 114 times [2022-01-17 23:24:47,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:47,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064845545] [2022-01-17 23:24:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:47,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:48,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:48,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064845545] [2022-01-17 23:24:48,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064845545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:48,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:48,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:48,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655225760] [2022-01-17 23:24:48,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:48,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:48,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:48,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:48,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:48,162 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:49,777 INFO L93 Difference]: Finished difference Result 21972 states and 58425 transitions. [2022-01-17 23:24:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:24:49,778 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:49,807 INFO L225 Difference]: With dead ends: 21972 [2022-01-17 23:24:49,807 INFO L226 Difference]: Without dead ends: 21972 [2022-01-17 23:24:49,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:24:49,809 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1872 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:49,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1872 Valid, 2424 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:49,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21972 states. [2022-01-17 23:24:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21972 to 6507. [2022-01-17 23:24:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:24:49,963 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:24:49,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:49,963 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:24:49,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:24:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:49,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:49,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:49,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-17 23:24:49,970 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:49,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:49,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1882180812, now seen corresponding path program 115 times [2022-01-17 23:24:49,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:49,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850120499] [2022-01-17 23:24:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:49,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:50,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850120499] [2022-01-17 23:24:50,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850120499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:50,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:50,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:50,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548281806] [2022-01-17 23:24:50,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:50,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:50,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:50,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:50,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:50,288 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:51,413 INFO L93 Difference]: Finished difference Result 21880 states and 58153 transitions. [2022-01-17 23:24:51,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:51,413 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:51,443 INFO L225 Difference]: With dead ends: 21880 [2022-01-17 23:24:51,443 INFO L226 Difference]: Without dead ends: 21880 [2022-01-17 23:24:51,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:51,443 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1651 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:51,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1651 Valid, 2514 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:51,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21880 states. [2022-01-17 23:24:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21880 to 6489. [2022-01-17 23:24:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:24:51,605 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:24:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:51,605 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:24:51,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:24:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:51,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:51,612 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] [2022-01-17 23:24:51,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-17 23:24:51,612 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:51,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1165223352, now seen corresponding path program 116 times [2022-01-17 23:24:51,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:51,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182776959] [2022-01-17 23:24:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:51,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:51,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:51,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182776959] [2022-01-17 23:24:51,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182776959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:51,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:51,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:51,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068864251] [2022-01-17 23:24:51,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:51,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:51,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:51,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:51,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:51,914 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:53,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:53,055 INFO L93 Difference]: Finished difference Result 19438 states and 51740 transitions. [2022-01-17 23:24:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:24:53,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:53,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:53,080 INFO L225 Difference]: With dead ends: 19438 [2022-01-17 23:24:53,081 INFO L226 Difference]: Without dead ends: 19438 [2022-01-17 23:24:53,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:24:53,081 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1462 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:53,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 2776 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:53,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19438 states. [2022-01-17 23:24:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19438 to 6453. [2022-01-17 23:24:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6451 states have (on average 2.707332196558673) internal successors, (17465), 6452 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 17465 transitions. [2022-01-17 23:24:53,224 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 17465 transitions. Word has length 130 [2022-01-17 23:24:53,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:53,224 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 17465 transitions. [2022-01-17 23:24:53,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 17465 transitions. [2022-01-17 23:24:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:53,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:53,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:53,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-17 23:24:53,231 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1820363564, now seen corresponding path program 117 times [2022-01-17 23:24:53,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:53,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302135370] [2022-01-17 23:24:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:53,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:53,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:53,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302135370] [2022-01-17 23:24:53,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302135370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:53,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:53,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:53,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888789774] [2022-01-17 23:24:53,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:53,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:53,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:53,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:53,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:53,558 INFO L87 Difference]: Start difference. First operand 6453 states and 17465 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:55,033 INFO L93 Difference]: Finished difference Result 16464 states and 43881 transitions. [2022-01-17 23:24:55,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:24:55,034 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:55,056 INFO L225 Difference]: With dead ends: 16464 [2022-01-17 23:24:55,056 INFO L226 Difference]: Without dead ends: 16464 [2022-01-17 23:24:55,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:24:55,057 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1450 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:55,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 2689 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:55,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16464 states. [2022-01-17 23:24:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16464 to 6489. [2022-01-17 23:24:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:55,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:24:55,176 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:24:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:55,176 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:24:55,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:24:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:55,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:55,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:55,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-17 23:24:55,183 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash 196414056, now seen corresponding path program 118 times [2022-01-17 23:24:55,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:55,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696612504] [2022-01-17 23:24:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:55,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:55,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:55,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696612504] [2022-01-17 23:24:55,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696612504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:55,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:55,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:55,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788587109] [2022-01-17 23:24:55,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:55,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:55,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:55,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:55,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:55,518 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:57,066 INFO L93 Difference]: Finished difference Result 17414 states and 46007 transitions. [2022-01-17 23:24:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:24:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:57,091 INFO L225 Difference]: With dead ends: 17414 [2022-01-17 23:24:57,091 INFO L226 Difference]: Without dead ends: 17414 [2022-01-17 23:24:57,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:24:57,092 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1593 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:57,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1593 Valid, 2476 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17414 states. [2022-01-17 23:24:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17414 to 6471. [2022-01-17 23:24:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:24:57,234 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:24:57,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:57,235 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:24:57,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:24:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:57,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:57,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:57,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-17 23:24:57,242 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:57,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1220673724, now seen corresponding path program 119 times [2022-01-17 23:24:57,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:57,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706198767] [2022-01-17 23:24:57,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:57,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:57,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:57,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706198767] [2022-01-17 23:24:57,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706198767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:57,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:57,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:24:57,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589125061] [2022-01-17 23:24:57,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:57,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:24:57,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:57,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:24:57,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:24:57,585 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:24:59,224 INFO L93 Difference]: Finished difference Result 20756 states and 54690 transitions. [2022-01-17 23:24:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:24:59,225 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:24:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:24:59,256 INFO L225 Difference]: With dead ends: 20756 [2022-01-17 23:24:59,256 INFO L226 Difference]: Without dead ends: 20756 [2022-01-17 23:24:59,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:24:59,257 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1632 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:24:59,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 2546 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:24:59,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20756 states. [2022-01-17 23:24:59,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 6489. [2022-01-17 23:24:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:24:59,414 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:24:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:24:59,414 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:24:59,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:24:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:24:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:24:59,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:24:59,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:24:59,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-17 23:24:59,422 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:24:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:24:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash 477965450, now seen corresponding path program 120 times [2022-01-17 23:24:59,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:24:59,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608209256] [2022-01-17 23:24:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:24:59,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:24:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:24:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:24:59,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:24:59,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608209256] [2022-01-17 23:24:59,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608209256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:24:59,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:24:59,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:24:59,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467584400] [2022-01-17 23:24:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:24:59,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:24:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:24:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:24:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:24:59,719 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:00,833 INFO L93 Difference]: Finished difference Result 17568 states and 46458 transitions. [2022-01-17 23:25:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:00,856 INFO L225 Difference]: With dead ends: 17568 [2022-01-17 23:25:00,857 INFO L226 Difference]: Without dead ends: 17568 [2022-01-17 23:25:00,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:00,857 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1483 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:00,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 2823 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17568 states. [2022-01-17 23:25:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17568 to 6417. [2022-01-17 23:25:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6417 states, 6415 states have (on average 2.7063133281371785) internal successors, (17361), 6416 states have internal predecessors, (17361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 17361 transitions. [2022-01-17 23:25:00,985 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 17361 transitions. Word has length 130 [2022-01-17 23:25:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:00,985 INFO L470 AbstractCegarLoop]: Abstraction has 6417 states and 17361 transitions. [2022-01-17 23:25:00,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 17361 transitions. [2022-01-17 23:25:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:00,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:00,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:00,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-17 23:25:00,992 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:00,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:00,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1170894620, now seen corresponding path program 121 times [2022-01-17 23:25:00,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:00,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059674943] [2022-01-17 23:25:00,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:00,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:01,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:01,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059674943] [2022-01-17 23:25:01,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059674943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:01,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:01,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:01,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631197081] [2022-01-17 23:25:01,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:01,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:01,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:01,318 INFO L87 Difference]: Start difference. First operand 6417 states and 17361 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:02,941 INFO L93 Difference]: Finished difference Result 16776 states and 44551 transitions. [2022-01-17 23:25:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:25:02,941 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:02,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:02,965 INFO L225 Difference]: With dead ends: 16776 [2022-01-17 23:25:02,965 INFO L226 Difference]: Without dead ends: 16776 [2022-01-17 23:25:02,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:25:02,965 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1420 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:02,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 2722 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:02,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16776 states. [2022-01-17 23:25:03,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16776 to 6489. [2022-01-17 23:25:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:25:03,097 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:25:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:03,097 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:25:03,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:25:03,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:03,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:03,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:03,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-17 23:25:03,104 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:03,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash 527744554, now seen corresponding path program 122 times [2022-01-17 23:25:03,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897869648] [2022-01-17 23:25:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:03,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:03,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:03,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897869648] [2022-01-17 23:25:03,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897869648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:03,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:03,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:03,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587502274] [2022-01-17 23:25:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:03,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:03,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:03,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:03,466 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:04,884 INFO L93 Difference]: Finished difference Result 16684 states and 44279 transitions. [2022-01-17 23:25:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:25:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:04,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:04,906 INFO L225 Difference]: With dead ends: 16684 [2022-01-17 23:25:04,906 INFO L226 Difference]: Without dead ends: 16684 [2022-01-17 23:25:04,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:25:04,907 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1368 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:04,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 2529 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:04,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16684 states. [2022-01-17 23:25:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16684 to 6471. [2022-01-17 23:25:05,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:25:05,026 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:25:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:05,026 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:25:05,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:25:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:05,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:05,032 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] [2022-01-17 23:25:05,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-17 23:25:05,033 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:05,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1775307686, now seen corresponding path program 123 times [2022-01-17 23:25:05,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:05,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258952143] [2022-01-17 23:25:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:05,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:05,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:05,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258952143] [2022-01-17 23:25:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258952143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:05,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:05,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:05,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616848966] [2022-01-17 23:25:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:05,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:05,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:05,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:05,363 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:06,842 INFO L93 Difference]: Finished difference Result 16980 states and 45145 transitions. [2022-01-17 23:25:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:25:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:06,865 INFO L225 Difference]: With dead ends: 16980 [2022-01-17 23:25:06,865 INFO L226 Difference]: Without dead ends: 16980 [2022-01-17 23:25:06,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:25:06,866 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1325 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:06,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 2828 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:06,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16980 states. [2022-01-17 23:25:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16980 to 6435. [2022-01-17 23:25:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6433 states have (on average 2.7068241877817503) internal successors, (17413), 6434 states have internal predecessors, (17413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 17413 transitions. [2022-01-17 23:25:06,996 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 17413 transitions. Word has length 130 [2022-01-17 23:25:06,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:06,996 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 17413 transitions. [2022-01-17 23:25:06,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 17413 transitions. [2022-01-17 23:25:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:07,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:07,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:07,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-17 23:25:07,003 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:07,004 INFO L85 PathProgramCache]: Analyzing trace with hash 600390566, now seen corresponding path program 124 times [2022-01-17 23:25:07,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:07,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736734870] [2022-01-17 23:25:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:07,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:07,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:07,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736734870] [2022-01-17 23:25:07,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736734870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:07,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:07,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:07,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443315492] [2022-01-17 23:25:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:07,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:07,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:07,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:07,308 INFO L87 Difference]: Start difference. First operand 6435 states and 17413 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:08,410 INFO L93 Difference]: Finished difference Result 13774 states and 36736 transitions. [2022-01-17 23:25:08,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:08,410 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:08,431 INFO L225 Difference]: With dead ends: 13774 [2022-01-17 23:25:08,431 INFO L226 Difference]: Without dead ends: 13774 [2022-01-17 23:25:08,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:08,431 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1090 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:08,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2782 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:08,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13774 states. [2022-01-17 23:25:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13774 to 6399. [2022-01-17 23:25:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 6397 states have (on average 2.705799593559481) internal successors, (17309), 6398 states have internal predecessors, (17309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:08,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 17309 transitions. [2022-01-17 23:25:08,542 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 17309 transitions. Word has length 130 [2022-01-17 23:25:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:08,543 INFO L470 AbstractCegarLoop]: Abstraction has 6399 states and 17309 transitions. [2022-01-17 23:25:08,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 17309 transitions. [2022-01-17 23:25:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:08,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:08,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:08,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-17 23:25:08,550 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:08,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash 392377702, now seen corresponding path program 125 times [2022-01-17 23:25:08,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:08,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045960333] [2022-01-17 23:25:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:08,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:08,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:08,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045960333] [2022-01-17 23:25:08,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045960333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:08,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:08,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:08,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099411396] [2022-01-17 23:25:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:08,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:08,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:08,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:08,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:08,885 INFO L87 Difference]: Start difference. First operand 6399 states and 17309 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:10,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:10,521 INFO L93 Difference]: Finished difference Result 21406 states and 56647 transitions. [2022-01-17 23:25:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:25:10,521 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:10,549 INFO L225 Difference]: With dead ends: 21406 [2022-01-17 23:25:10,549 INFO L226 Difference]: Without dead ends: 21406 [2022-01-17 23:25:10,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:25:10,550 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1672 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:10,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 2534 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21406 states. [2022-01-17 23:25:10,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21406 to 6561. [2022-01-17 23:25:10,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-17 23:25:10,695 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-17 23:25:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:10,695 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-17 23:25:10,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-17 23:25:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:10,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:10,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:10,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-17 23:25:10,702 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2091016876, now seen corresponding path program 126 times [2022-01-17 23:25:10,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:10,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570173052] [2022-01-17 23:25:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:10,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:11,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:11,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570173052] [2022-01-17 23:25:11,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570173052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:11,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:11,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:11,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793653899] [2022-01-17 23:25:11,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:11,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:11,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:11,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:11,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:11,056 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:12,698 INFO L93 Difference]: Finished difference Result 21314 states and 56375 transitions. [2022-01-17 23:25:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:25:12,698 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:12,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:12,727 INFO L225 Difference]: With dead ends: 21314 [2022-01-17 23:25:12,727 INFO L226 Difference]: Without dead ends: 21314 [2022-01-17 23:25:12,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:25:12,728 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1376 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:12,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 2853 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21314 states. [2022-01-17 23:25:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21314 to 6543. [2022-01-17 23:25:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:12,880 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:12,881 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:12,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:12,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:12,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:12,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-17 23:25:12,888 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:12,888 INFO L85 PathProgramCache]: Analyzing trace with hash -956387288, now seen corresponding path program 127 times [2022-01-17 23:25:12,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:12,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31503445] [2022-01-17 23:25:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:12,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:13,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:13,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31503445] [2022-01-17 23:25:13,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31503445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:13,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:13,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:13,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083169715] [2022-01-17 23:25:13,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:13,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:13,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:13,187 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:14,362 INFO L93 Difference]: Finished difference Result 18872 states and 49962 transitions. [2022-01-17 23:25:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:14,419 INFO L225 Difference]: With dead ends: 18872 [2022-01-17 23:25:14,419 INFO L226 Difference]: Without dead ends: 18872 [2022-01-17 23:25:14,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:14,419 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1313 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:14,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 2865 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18872 states. [2022-01-17 23:25:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18872 to 6507. [2022-01-17 23:25:14,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:25:14,540 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:25:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:14,540 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:25:14,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:25:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:14,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:14,547 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] [2022-01-17 23:25:14,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-17 23:25:14,547 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2029199628, now seen corresponding path program 128 times [2022-01-17 23:25:14,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:14,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657173110] [2022-01-17 23:25:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:14,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:14,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:14,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657173110] [2022-01-17 23:25:14,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657173110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:14,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:14,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:14,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022150039] [2022-01-17 23:25:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:14,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:14,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:14,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:14,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:14,853 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:15,998 INFO L93 Difference]: Finished difference Result 21566 states and 57149 transitions. [2022-01-17 23:25:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:16,029 INFO L225 Difference]: With dead ends: 21566 [2022-01-17 23:25:16,029 INFO L226 Difference]: Without dead ends: 21566 [2022-01-17 23:25:16,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:16,030 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1407 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:16,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1407 Valid, 2615 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21566 states. [2022-01-17 23:25:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21566 to 6543. [2022-01-17 23:25:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:16,193 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:16,193 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:16,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:16,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:16,200 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] [2022-01-17 23:25:16,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-17 23:25:16,200 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:16,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 405250120, now seen corresponding path program 129 times [2022-01-17 23:25:16,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:16,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452679391] [2022-01-17 23:25:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:16,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:16,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452679391] [2022-01-17 23:25:16,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452679391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:16,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:16,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:16,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418532027] [2022-01-17 23:25:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:16,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:16,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:16,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:16,579 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:18,103 INFO L93 Difference]: Finished difference Result 22516 states and 59275 transitions. [2022-01-17 23:25:18,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:18,104 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:18,135 INFO L225 Difference]: With dead ends: 22516 [2022-01-17 23:25:18,135 INFO L226 Difference]: Without dead ends: 22516 [2022-01-17 23:25:18,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:25:18,136 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1357 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:18,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 4139 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22516 states. [2022-01-17 23:25:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22516 to 6525. [2022-01-17 23:25:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-17 23:25:18,300 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-17 23:25:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:18,301 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-17 23:25:18,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-17 23:25:18,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:18,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:18,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:18,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-17 23:25:18,307 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:18,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1011837660, now seen corresponding path program 130 times [2022-01-17 23:25:18,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:18,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944926997] [2022-01-17 23:25:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:18,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:18,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:18,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944926997] [2022-01-17 23:25:18,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944926997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:18,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:18,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:18,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793691708] [2022-01-17 23:25:18,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:18,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:18,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:18,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:18,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:18,694 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:20,242 INFO L93 Difference]: Finished difference Result 24236 states and 63400 transitions. [2022-01-17 23:25:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:20,274 INFO L225 Difference]: With dead ends: 24236 [2022-01-17 23:25:20,275 INFO L226 Difference]: Without dead ends: 24236 [2022-01-17 23:25:20,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:25:20,275 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1599 mSDsluCounter, 4185 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:20,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 4554 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24236 states. [2022-01-17 23:25:20,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24236 to 6543. [2022-01-17 23:25:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:20,451 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:20,451 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:20,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:20,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:20,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:20,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-17 23:25:20,458 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:20,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:20,459 INFO L85 PathProgramCache]: Analyzing trace with hash 686801514, now seen corresponding path program 131 times [2022-01-17 23:25:20,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:20,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834114149] [2022-01-17 23:25:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:20,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:20,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:20,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834114149] [2022-01-17 23:25:20,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834114149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:20,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:20,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:20,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092392579] [2022-01-17 23:25:20,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:20,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:20,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:20,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:20,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:20,780 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:21,937 INFO L93 Difference]: Finished difference Result 21048 states and 55168 transitions. [2022-01-17 23:25:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:21,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:21,967 INFO L225 Difference]: With dead ends: 21048 [2022-01-17 23:25:21,967 INFO L226 Difference]: Without dead ends: 21048 [2022-01-17 23:25:21,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:21,968 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1260 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:21,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 3011 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21048 states. [2022-01-17 23:25:22,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21048 to 6471. [2022-01-17 23:25:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:25:22,125 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:25:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:22,125 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:25:22,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:25:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:22,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:22,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:22,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-17 23:25:22,132 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:22,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2049385998, now seen corresponding path program 132 times [2022-01-17 23:25:22,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:22,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880199063] [2022-01-17 23:25:22,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:22,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:22,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:22,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880199063] [2022-01-17 23:25:22,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880199063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:22,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:22,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:22,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849946699] [2022-01-17 23:25:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:22,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:22,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:22,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:22,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:22,469 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:23,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:23,932 INFO L93 Difference]: Finished difference Result 16964 states and 45267 transitions. [2022-01-17 23:25:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:25:23,932 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:23,956 INFO L225 Difference]: With dead ends: 16964 [2022-01-17 23:25:23,956 INFO L226 Difference]: Without dead ends: 16964 [2022-01-17 23:25:23,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:25:23,956 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1266 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:23,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2731 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16964 states. [2022-01-17 23:25:24,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16964 to 6543. [2022-01-17 23:25:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:24,089 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:24,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:24,089 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:24,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:24,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:24,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:24,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-17 23:25:24,098 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:24,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:24,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1795951286, now seen corresponding path program 133 times [2022-01-17 23:25:24,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:24,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216927616] [2022-01-17 23:25:24,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:24,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:24,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:24,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216927616] [2022-01-17 23:25:24,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216927616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:24,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:24,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:24,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287079892] [2022-01-17 23:25:24,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:24,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:24,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:24,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:24,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:24,477 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:26,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:26,059 INFO L93 Difference]: Finished difference Result 19778 states and 52635 transitions. [2022-01-17 23:25:26,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:26,060 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:26,086 INFO L225 Difference]: With dead ends: 19778 [2022-01-17 23:25:26,086 INFO L226 Difference]: Without dead ends: 19778 [2022-01-17 23:25:26,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:25:26,087 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1441 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:26,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 2810 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19778 states. [2022-01-17 23:25:26,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19778 to 6561. [2022-01-17 23:25:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-17 23:25:26,227 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-17 23:25:26,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:26,227 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-17 23:25:26,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-17 23:25:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:26,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:26,234 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] [2022-01-17 23:25:26,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-17 23:25:26,234 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash 172001778, now seen corresponding path program 134 times [2022-01-17 23:25:26,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:26,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210391949] [2022-01-17 23:25:26,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:26,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:26,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210391949] [2022-01-17 23:25:26,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210391949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:26,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:26,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:26,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642290231] [2022-01-17 23:25:26,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:26,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:26,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:26,537 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:27,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:27,680 INFO L93 Difference]: Finished difference Result 17996 states and 47603 transitions. [2022-01-17 23:25:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:27,704 INFO L225 Difference]: With dead ends: 17996 [2022-01-17 23:25:27,704 INFO L226 Difference]: Without dead ends: 17996 [2022-01-17 23:25:27,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:27,705 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1511 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:27,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 2494 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:27,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-01-17 23:25:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 6507. [2022-01-17 23:25:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:27,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:25:27,846 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:25:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:27,846 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:25:27,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:25:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:27,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:27,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:27,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-17 23:25:27,853 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:27,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:27,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1568360516, now seen corresponding path program 135 times [2022-01-17 23:25:27,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:27,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046982988] [2022-01-17 23:25:27,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:27,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:28,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:28,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:28,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046982988] [2022-01-17 23:25:28,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046982988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:28,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:28,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:28,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513794346] [2022-01-17 23:25:28,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:28,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:28,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:28,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:28,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:28,156 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:29,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:29,335 INFO L93 Difference]: Finished difference Result 19404 states and 51058 transitions. [2022-01-17 23:25:29,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:29,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:29,359 INFO L225 Difference]: With dead ends: 19404 [2022-01-17 23:25:29,360 INFO L226 Difference]: Without dead ends: 19404 [2022-01-17 23:25:29,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:29,360 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1234 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:29,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 2979 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2022-01-17 23:25:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 6543. [2022-01-17 23:25:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:29,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:29,496 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:29,496 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:29,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:29,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:29,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:29,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-17 23:25:29,504 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:29,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:29,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1102657272, now seen corresponding path program 136 times [2022-01-17 23:25:29,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:29,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525345227] [2022-01-17 23:25:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:29,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:29,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:29,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:29,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525345227] [2022-01-17 23:25:29,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525345227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:29,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:29,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:29,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587940337] [2022-01-17 23:25:29,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:29,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:29,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:29,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:29,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:29,846 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:31,645 INFO L93 Difference]: Finished difference Result 20354 states and 53184 transitions. [2022-01-17 23:25:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:25:31,645 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:31,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:31,674 INFO L225 Difference]: With dead ends: 20354 [2022-01-17 23:25:31,674 INFO L226 Difference]: Without dead ends: 20354 [2022-01-17 23:25:31,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:25:31,674 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1600 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:31,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1600 Valid, 2915 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20354 states. [2022-01-17 23:25:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20354 to 6525. [2022-01-17 23:25:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-17 23:25:31,832 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-17 23:25:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-17 23:25:31,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-17 23:25:31,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:31,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:31,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:31,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-17 23:25:31,839 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash -314430508, now seen corresponding path program 137 times [2022-01-17 23:25:31,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:31,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828808879] [2022-01-17 23:25:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:31,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:32,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:32,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828808879] [2022-01-17 23:25:32,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828808879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:32,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:32,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:32,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613770771] [2022-01-17 23:25:32,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:32,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:32,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:32,156 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:33,335 INFO L93 Difference]: Finished difference Result 19590 states and 51364 transitions. [2022-01-17 23:25:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:33,360 INFO L225 Difference]: With dead ends: 19590 [2022-01-17 23:25:33,361 INFO L226 Difference]: Without dead ends: 19590 [2022-01-17 23:25:33,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:33,361 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1283 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:33,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 2941 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19590 states. [2022-01-17 23:25:33,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19590 to 6543. [2022-01-17 23:25:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:33,503 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:33,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:33,503 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:33,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:33,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:33,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:33,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:33,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-17 23:25:33,510 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1384208666, now seen corresponding path program 138 times [2022-01-17 23:25:33,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:33,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239219128] [2022-01-17 23:25:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:33,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:33,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:33,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239219128] [2022-01-17 23:25:33,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239219128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:33,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:33,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:33,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391213126] [2022-01-17 23:25:33,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:33,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:33,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:33,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:33,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:33,811 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:34,888 INFO L93 Difference]: Finished difference Result 16402 states and 43132 transitions. [2022-01-17 23:25:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:34,911 INFO L225 Difference]: With dead ends: 16402 [2022-01-17 23:25:34,911 INFO L226 Difference]: Without dead ends: 16402 [2022-01-17 23:25:34,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:34,912 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1319 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:34,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 2570 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:25:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16402 states. [2022-01-17 23:25:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16402 to 6363. [2022-01-17 23:25:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6363 states, 6361 states have (on average 2.7047634019808204) internal successors, (17205), 6362 states have internal predecessors, (17205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 17205 transitions. [2022-01-17 23:25:35,035 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 17205 transitions. Word has length 130 [2022-01-17 23:25:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:35,035 INFO L470 AbstractCegarLoop]: Abstraction has 6363 states and 17205 transitions. [2022-01-17 23:25:35,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 17205 transitions. [2022-01-17 23:25:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:35,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:35,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:35,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-17 23:25:35,042 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:35,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:35,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1946510152, now seen corresponding path program 139 times [2022-01-17 23:25:35,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:35,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707072275] [2022-01-17 23:25:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:35,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:35,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:35,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707072275] [2022-01-17 23:25:35,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707072275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:35,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:35,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:35,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959930223] [2022-01-17 23:25:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:35,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:35,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:35,361 INFO L87 Difference]: Start difference. First operand 6363 states and 17205 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:36,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:36,536 INFO L93 Difference]: Finished difference Result 22138 states and 58681 transitions. [2022-01-17 23:25:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:36,537 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:36,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:36,566 INFO L225 Difference]: With dead ends: 22138 [2022-01-17 23:25:36,566 INFO L226 Difference]: Without dead ends: 22138 [2022-01-17 23:25:36,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:36,566 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1475 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:36,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 2873 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:36,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22138 states. [2022-01-17 23:25:36,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22138 to 6561. [2022-01-17 23:25:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:36,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-17 23:25:36,723 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-17 23:25:36,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:36,724 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-17 23:25:36,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-17 23:25:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:36,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:36,731 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] [2022-01-17 23:25:36,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-17 23:25:36,731 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:36,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash -649817970, now seen corresponding path program 140 times [2022-01-17 23:25:36,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:36,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154407802] [2022-01-17 23:25:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:36,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:37,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:37,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:37,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154407802] [2022-01-17 23:25:37,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154407802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:37,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:37,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:37,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237274854] [2022-01-17 23:25:37,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:37,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:37,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:37,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:37,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:37,108 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:38,579 INFO L93 Difference]: Finished difference Result 22046 states and 58409 transitions. [2022-01-17 23:25:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:38,580 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:38,618 INFO L225 Difference]: With dead ends: 22046 [2022-01-17 23:25:38,618 INFO L226 Difference]: Without dead ends: 22046 [2022-01-17 23:25:38,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:25:38,619 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1583 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:38,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 4230 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22046 states. [2022-01-17 23:25:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22046 to 6543. [2022-01-17 23:25:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:38,782 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:38,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:38,782 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:38,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:38,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:38,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:38,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:38,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-17 23:25:38,790 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:38,790 INFO L85 PathProgramCache]: Analyzing trace with hash 597745162, now seen corresponding path program 141 times [2022-01-17 23:25:38,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:38,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082073959] [2022-01-17 23:25:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:38,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:39,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:39,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:39,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082073959] [2022-01-17 23:25:39,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082073959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:39,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:39,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:39,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378674926] [2022-01-17 23:25:39,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:39,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:39,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:39,092 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:40,263 INFO L93 Difference]: Finished difference Result 19604 states and 51996 transitions. [2022-01-17 23:25:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:40,264 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:40,292 INFO L225 Difference]: With dead ends: 19604 [2022-01-17 23:25:40,292 INFO L226 Difference]: Without dead ends: 19604 [2022-01-17 23:25:40,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:40,293 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1294 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:40,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 2903 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:40,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19604 states. [2022-01-17 23:25:40,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19604 to 6507. [2022-01-17 23:25:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:25:40,458 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:25:40,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:40,458 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:25:40,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:25:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:40,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:40,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:40,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-17 23:25:40,466 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:40,466 INFO L85 PathProgramCache]: Analyzing trace with hash -711635218, now seen corresponding path program 142 times [2022-01-17 23:25:40,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:40,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872610448] [2022-01-17 23:25:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:40,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:40,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:40,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872610448] [2022-01-17 23:25:40,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872610448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:40,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:40,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:40,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248436406] [2022-01-17 23:25:40,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:40,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:40,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:40,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:40,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:40,767 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:41,889 INFO L93 Difference]: Finished difference Result 22298 states and 59183 transitions. [2022-01-17 23:25:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:41,920 INFO L225 Difference]: With dead ends: 22298 [2022-01-17 23:25:41,920 INFO L226 Difference]: Without dead ends: 22298 [2022-01-17 23:25:41,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:41,921 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1534 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:41,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 2648 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22298 states. [2022-01-17 23:25:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22298 to 6543. [2022-01-17 23:25:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:42,087 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:42,087 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:42,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:42,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:42,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:42,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-17 23:25:42,094 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:42,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:42,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1959382570, now seen corresponding path program 143 times [2022-01-17 23:25:42,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:42,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791445602] [2022-01-17 23:25:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:42,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:42,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:42,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791445602] [2022-01-17 23:25:42,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791445602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:42,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:42,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:42,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825886381] [2022-01-17 23:25:42,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:42,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:42,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:42,447 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:44,174 INFO L93 Difference]: Finished difference Result 23248 states and 61309 transitions. [2022-01-17 23:25:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:25:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:44,207 INFO L225 Difference]: With dead ends: 23248 [2022-01-17 23:25:44,207 INFO L226 Difference]: Without dead ends: 23248 [2022-01-17 23:25:44,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:25:44,208 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1394 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:44,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1394 Valid, 2679 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23248 states. [2022-01-17 23:25:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23248 to 6525. [2022-01-17 23:25:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-17 23:25:44,362 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-17 23:25:44,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:44,362 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-17 23:25:44,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:44,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-17 23:25:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:44,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:44,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:44,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-17 23:25:44,369 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:44,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:44,369 INFO L85 PathProgramCache]: Analyzing trace with hash 542294790, now seen corresponding path program 144 times [2022-01-17 23:25:44,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:44,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839208434] [2022-01-17 23:25:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:44,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:44,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839208434] [2022-01-17 23:25:44,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839208434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:44,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:44,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:44,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224982068] [2022-01-17 23:25:44,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:44,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:44,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:44,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:44,741 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:46,258 INFO L93 Difference]: Finished difference Result 24968 states and 65434 transitions. [2022-01-17 23:25:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:46,258 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:46,295 INFO L225 Difference]: With dead ends: 24968 [2022-01-17 23:25:46,295 INFO L226 Difference]: Without dead ends: 24968 [2022-01-17 23:25:46,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:25:46,295 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 1460 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:46,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1460 Valid, 4333 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:46,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24968 states. [2022-01-17 23:25:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24968 to 6543. [2022-01-17 23:25:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:46,462 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:46,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:46,462 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:46,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:46,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:46,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:46,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-17 23:25:46,468 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash -2054033332, now seen corresponding path program 145 times [2022-01-17 23:25:46,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:46,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214744758] [2022-01-17 23:25:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:46,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:46,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:46,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214744758] [2022-01-17 23:25:46,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214744758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:46,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:46,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:46,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519880499] [2022-01-17 23:25:46,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:46,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:46,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:46,805 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:48,644 INFO L93 Difference]: Finished difference Result 21780 states and 57202 transitions. [2022-01-17 23:25:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:25:48,644 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:48,674 INFO L225 Difference]: With dead ends: 21780 [2022-01-17 23:25:48,675 INFO L226 Difference]: Without dead ends: 21780 [2022-01-17 23:25:48,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:25:48,675 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1433 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:48,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1433 Valid, 2996 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:48,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21780 states. [2022-01-17 23:25:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21780 to 6471. [2022-01-17 23:25:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:25:48,830 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:25:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:48,830 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:25:48,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:25:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:48,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:48,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:48,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-17 23:25:48,837 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:48,837 INFO L85 PathProgramCache]: Analyzing trace with hash -495253548, now seen corresponding path program 146 times [2022-01-17 23:25:48,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:48,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310519616] [2022-01-17 23:25:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:48,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:49,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:49,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:49,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310519616] [2022-01-17 23:25:49,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310519616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:49,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:49,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:49,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918307669] [2022-01-17 23:25:49,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:49,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:49,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:49,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:49,220 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:50,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:50,695 INFO L93 Difference]: Finished difference Result 22966 states and 61059 transitions. [2022-01-17 23:25:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:25:50,695 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:50,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:50,728 INFO L225 Difference]: With dead ends: 22966 [2022-01-17 23:25:50,728 INFO L226 Difference]: Without dead ends: 22966 [2022-01-17 23:25:50,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:25:50,729 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1503 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:50,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 4225 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:25:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22966 states. [2022-01-17 23:25:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22966 to 6543. [2022-01-17 23:25:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:50,892 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:50,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:50,892 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:50,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:50,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:50,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:50,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-17 23:25:50,899 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:50,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash -944883560, now seen corresponding path program 147 times [2022-01-17 23:25:50,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:50,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107035169] [2022-01-17 23:25:50,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:50,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:51,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:51,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107035169] [2022-01-17 23:25:51,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107035169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:51,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:51,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:51,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904204306] [2022-01-17 23:25:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:51,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:51,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:51,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:51,248 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:52,440 INFO L93 Difference]: Finished difference Result 25780 states and 68427 transitions. [2022-01-17 23:25:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:52,441 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:52,482 INFO L225 Difference]: With dead ends: 25780 [2022-01-17 23:25:52,482 INFO L226 Difference]: Without dead ends: 25780 [2022-01-17 23:25:52,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:52,483 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1287 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:52,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 3041 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:52,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25780 states. [2022-01-17 23:25:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25780 to 6561. [2022-01-17 23:25:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-17 23:25:52,657 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-17 23:25:52,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:52,657 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-17 23:25:52,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:52,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-17 23:25:52,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:52,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:52,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:52,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-17 23:25:52,664 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:52,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1726134228, now seen corresponding path program 148 times [2022-01-17 23:25:52,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:52,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684945587] [2022-01-17 23:25:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:52,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:52,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:52,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684945587] [2022-01-17 23:25:52,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684945587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:52,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:52,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:52,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107035459] [2022-01-17 23:25:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:52,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:52,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:52,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:52,987 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:54,695 INFO L93 Difference]: Finished difference Result 23998 states and 63395 transitions. [2022-01-17 23:25:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:25:54,696 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:54,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:54,730 INFO L225 Difference]: With dead ends: 23998 [2022-01-17 23:25:54,730 INFO L226 Difference]: Without dead ends: 23998 [2022-01-17 23:25:54,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:25:54,731 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 1497 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:54,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 2683 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23998 states. [2022-01-17 23:25:54,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23998 to 6507. [2022-01-17 23:25:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:25:54,901 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:25:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:54,901 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:25:54,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:25:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:54,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:54,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:54,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-17 23:25:54,908 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:54,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:54,909 INFO L85 PathProgramCache]: Analyzing trace with hash -14228066, now seen corresponding path program 149 times [2022-01-17 23:25:54,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:54,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312900965] [2022-01-17 23:25:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:54,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:55,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:55,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312900965] [2022-01-17 23:25:55,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312900965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:55,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:55,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:25:55,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473132002] [2022-01-17 23:25:55,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:55,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:25:55,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:55,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:25:55,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:25:55,237 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:56,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:56,425 INFO L93 Difference]: Finished difference Result 25406 states and 66850 transitions. [2022-01-17 23:25:56,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:25:56,425 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:56,499 INFO L225 Difference]: With dead ends: 25406 [2022-01-17 23:25:56,499 INFO L226 Difference]: Without dead ends: 25406 [2022-01-17 23:25:56,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:25:56,499 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 1265 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:56,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 3206 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:25:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25406 states. [2022-01-17 23:25:56,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25406 to 6543. [2022-01-17 23:25:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:25:56,635 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:25:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:56,635 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:25:56,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:25:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:56,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:56,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:25:56,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-17 23:25:56,642 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:56,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1638177574, now seen corresponding path program 150 times [2022-01-17 23:25:56,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:56,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088117241] [2022-01-17 23:25:56,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:56,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:56,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:56,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088117241] [2022-01-17 23:25:56,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088117241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:56,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:56,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:25:56,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397392319] [2022-01-17 23:25:56,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:56,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:25:56,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:56,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:25:56,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:25:56,967 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:58,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:25:58,912 INFO L93 Difference]: Finished difference Result 26356 states and 68976 transitions. [2022-01-17 23:25:58,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:25:58,915 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:25:58,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:25:58,954 INFO L225 Difference]: With dead ends: 26356 [2022-01-17 23:25:58,954 INFO L226 Difference]: Without dead ends: 26356 [2022-01-17 23:25:58,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=528, Invalid=1278, Unknown=0, NotChecked=0, Total=1806 [2022-01-17 23:25:58,954 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1524 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:25:58,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 3147 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:25:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26356 states. [2022-01-17 23:25:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26356 to 6525. [2022-01-17 23:25:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-17 23:25:59,145 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-17 23:25:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:25:59,145 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-17 23:25:59,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:25:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-17 23:25:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:25:59,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:25:59,154 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] [2022-01-17 23:25:59,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-17 23:25:59,154 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:25:59,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:25:59,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1239701942, now seen corresponding path program 151 times [2022-01-17 23:25:59,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:25:59,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099668184] [2022-01-17 23:25:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:25:59,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:25:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:25:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:25:59,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:25:59,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099668184] [2022-01-17 23:25:59,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099668184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:25:59,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:25:59,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:25:59,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368594543] [2022-01-17 23:25:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:25:59,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:25:59,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:25:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:25:59,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:25:59,530 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:01,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:01,029 INFO L93 Difference]: Finished difference Result 25592 states and 67156 transitions. [2022-01-17 23:26:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:01,029 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:01,073 INFO L225 Difference]: With dead ends: 25592 [2022-01-17 23:26:01,073 INFO L226 Difference]: Without dead ends: 25592 [2022-01-17 23:26:01,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:01,073 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1342 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:01,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 4365 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25592 states. [2022-01-17 23:26:01,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25592 to 6543. [2022-01-17 23:26:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-17 23:26:01,266 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-17 23:26:01,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:01,266 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-17 23:26:01,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-17 23:26:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:01,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:01,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:01,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-17 23:26:01,274 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:01,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1356626180, now seen corresponding path program 152 times [2022-01-17 23:26:01,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:01,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810439628] [2022-01-17 23:26:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:01,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:01,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:01,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810439628] [2022-01-17 23:26:01,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810439628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:01,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:01,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:01,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234664954] [2022-01-17 23:26:01,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:01,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:01,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:01,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:01,636 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:03,499 INFO L93 Difference]: Finished difference Result 22404 states and 58924 transitions. [2022-01-17 23:26:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:26:03,499 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:03,543 INFO L225 Difference]: With dead ends: 22404 [2022-01-17 23:26:03,543 INFO L226 Difference]: Without dead ends: 22404 [2022-01-17 23:26:03,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:26:03,543 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1437 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:03,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2756 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2022-01-17 23:26:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 6399. [2022-01-17 23:26:03,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 6397 states have (on average 2.705799593559481) internal successors, (17309), 6398 states have internal predecessors, (17309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 17309 transitions. [2022-01-17 23:26:03,746 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 17309 transitions. Word has length 130 [2022-01-17 23:26:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:03,747 INFO L470 AbstractCegarLoop]: Abstraction has 6399 states and 17309 transitions. [2022-01-17 23:26:03,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 17309 transitions. [2022-01-17 23:26:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:03,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:03,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:03,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-17 23:26:03,755 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1826201266, now seen corresponding path program 153 times [2022-01-17 23:26:03,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:03,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533539437] [2022-01-17 23:26:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:03,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:04,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:04,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533539437] [2022-01-17 23:26:04,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533539437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:04,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:04,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:04,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770705033] [2022-01-17 23:26:04,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:04,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:04,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:04,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:04,130 INFO L87 Difference]: Start difference. First operand 6399 states and 17309 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:05,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:05,610 INFO L93 Difference]: Finished difference Result 17712 states and 47401 transitions. [2022-01-17 23:26:05,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:26:05,610 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:05,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:05,641 INFO L225 Difference]: With dead ends: 17712 [2022-01-17 23:26:05,641 INFO L226 Difference]: Without dead ends: 17712 [2022-01-17 23:26:05,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:26:05,641 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1332 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:05,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 2694 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2022-01-17 23:26:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 6435. [2022-01-17 23:26:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6433 states have (on average 2.7068241877817503) internal successors, (17413), 6434 states have internal predecessors, (17413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 17413 transitions. [2022-01-17 23:26:05,773 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 17413 transitions. Word has length 130 [2022-01-17 23:26:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:05,773 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 17413 transitions. [2022-01-17 23:26:05,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 17413 transitions. [2022-01-17 23:26:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:05,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:05,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:05,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-17 23:26:05,780 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash -535625866, now seen corresponding path program 154 times [2022-01-17 23:26:05,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:05,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620670638] [2022-01-17 23:26:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:05,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:06,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:06,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620670638] [2022-01-17 23:26:06,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620670638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:06,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:06,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:06,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175986342] [2022-01-17 23:26:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:06,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:06,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:06,121 INFO L87 Difference]: Start difference. First operand 6435 states and 17413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:07,736 INFO L93 Difference]: Finished difference Result 21014 states and 56125 transitions. [2022-01-17 23:26:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:07,762 INFO L225 Difference]: With dead ends: 21014 [2022-01-17 23:26:07,762 INFO L226 Difference]: Without dead ends: 21014 [2022-01-17 23:26:07,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:26:07,762 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1488 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:07,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1488 Valid, 2805 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2022-01-17 23:26:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 6471. [2022-01-17 23:26:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:26:07,897 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:26:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:07,897 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:26:07,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:26:07,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:07,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:07,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:07,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-17 23:26:07,905 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:07,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1550164106, now seen corresponding path program 155 times [2022-01-17 23:26:07,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:07,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311155181] [2022-01-17 23:26:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:07,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:08,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311155181] [2022-01-17 23:26:08,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311155181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:08,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:08,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:08,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031441268] [2022-01-17 23:26:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:08,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:08,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:08,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:08,215 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:09,394 INFO L93 Difference]: Finished difference Result 20690 states and 55189 transitions. [2022-01-17 23:26:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:09,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:09,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:09,426 INFO L225 Difference]: With dead ends: 20690 [2022-01-17 23:26:09,427 INFO L226 Difference]: Without dead ends: 20690 [2022-01-17 23:26:09,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:09,427 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1335 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:09,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 2830 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20690 states. [2022-01-17 23:26:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20690 to 6489. [2022-01-17 23:26:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:26:09,590 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:26:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:09,590 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:26:09,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:26:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:09,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:09,599 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] [2022-01-17 23:26:09,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-17 23:26:09,599 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1120853682, now seen corresponding path program 156 times [2022-01-17 23:26:09,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405765269] [2022-01-17 23:26:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:09,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:09,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:09,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405765269] [2022-01-17 23:26:09,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405765269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:09,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:09,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:09,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996984234] [2022-01-17 23:26:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:09,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:09,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:09,909 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:11,075 INFO L93 Difference]: Finished difference Result 18908 states and 50157 transitions. [2022-01-17 23:26:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:11,100 INFO L225 Difference]: With dead ends: 18908 [2022-01-17 23:26:11,100 INFO L226 Difference]: Without dead ends: 18908 [2022-01-17 23:26:11,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:11,101 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1479 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:11,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 2791 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18908 states. [2022-01-17 23:26:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18908 to 6417. [2022-01-17 23:26:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6417 states, 6415 states have (on average 2.7063133281371785) internal successors, (17361), 6416 states have internal predecessors, (17361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 17361 transitions. [2022-01-17 23:26:11,238 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 17361 transitions. Word has length 130 [2022-01-17 23:26:11,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:11,238 INFO L470 AbstractCegarLoop]: Abstraction has 6417 states and 17361 transitions. [2022-01-17 23:26:11,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:11,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 17361 transitions. [2022-01-17 23:26:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:11,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:11,245 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] [2022-01-17 23:26:11,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-17 23:26:11,245 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:11,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:11,246 INFO L85 PathProgramCache]: Analyzing trace with hash 646606528, now seen corresponding path program 157 times [2022-01-17 23:26:11,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:11,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474082299] [2022-01-17 23:26:11,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:11,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:11,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:11,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:11,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474082299] [2022-01-17 23:26:11,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474082299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:11,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:11,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:11,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969619239] [2022-01-17 23:26:11,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:11,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:11,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:11,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:11,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:11,579 INFO L87 Difference]: Start difference. First operand 6417 states and 17361 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:13,252 INFO L93 Difference]: Finished difference Result 20552 states and 54240 transitions. [2022-01-17 23:26:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:26:13,252 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:13,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:13,279 INFO L225 Difference]: With dead ends: 20552 [2022-01-17 23:26:13,279 INFO L226 Difference]: Without dead ends: 20552 [2022-01-17 23:26:13,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:26:13,279 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1240 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:13,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 3029 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20552 states. [2022-01-17 23:26:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20552 to 6489. [2022-01-17 23:26:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:26:13,416 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:26:13,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:13,416 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:26:13,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:13,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:26:13,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:13,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:13,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:13,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-17 23:26:13,423 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:13,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:13,423 INFO L85 PathProgramCache]: Analyzing trace with hash -367931712, now seen corresponding path program 158 times [2022-01-17 23:26:13,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:13,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456038090] [2022-01-17 23:26:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:13,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:13,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:13,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456038090] [2022-01-17 23:26:13,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456038090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:13,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:13,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:13,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803693198] [2022-01-17 23:26:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:13,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:13,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:13,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:13,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:13,765 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:15,513 INFO L93 Difference]: Finished difference Result 23366 states and 61608 transitions. [2022-01-17 23:26:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:26:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:15,545 INFO L225 Difference]: With dead ends: 23366 [2022-01-17 23:26:15,545 INFO L226 Difference]: Without dead ends: 23366 [2022-01-17 23:26:15,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:26:15,546 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1328 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:15,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 3052 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23366 states. [2022-01-17 23:26:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23366 to 6507. [2022-01-17 23:26:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-17 23:26:15,708 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-17 23:26:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:15,708 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-17 23:26:15,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-17 23:26:15,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:15,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:15,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:15,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-17 23:26:15,715 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:15,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1991881220, now seen corresponding path program 159 times [2022-01-17 23:26:15,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:15,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014913640] [2022-01-17 23:26:15,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:15,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:16,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014913640] [2022-01-17 23:26:16,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014913640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:16,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:16,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:16,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356761180] [2022-01-17 23:26:16,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:16,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:16,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:16,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:16,104 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:17,704 INFO L93 Difference]: Finished difference Result 21584 states and 56576 transitions. [2022-01-17 23:26:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:17,705 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:17,733 INFO L225 Difference]: With dead ends: 21584 [2022-01-17 23:26:17,734 INFO L226 Difference]: Without dead ends: 21584 [2022-01-17 23:26:17,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:17,734 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1304 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4185 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:17,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 4185 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21584 states. [2022-01-17 23:26:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21584 to 6453. [2022-01-17 23:26:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6451 states have (on average 2.707332196558673) internal successors, (17465), 6452 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 17465 transitions. [2022-01-17 23:26:17,886 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 17465 transitions. Word has length 130 [2022-01-17 23:26:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:17,886 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 17465 transitions. [2022-01-17 23:26:17,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 17465 transitions. [2022-01-17 23:26:17,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:17,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:17,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:17,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-17 23:26:17,894 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:17,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:17,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1549453986, now seen corresponding path program 160 times [2022-01-17 23:26:17,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:17,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018551289] [2022-01-17 23:26:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:17,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:18,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:18,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018551289] [2022-01-17 23:26:18,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018551289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:18,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:18,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:18,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197241234] [2022-01-17 23:26:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:18,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:18,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:18,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:18,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:18,233 INFO L87 Difference]: Start difference. First operand 6453 states and 17465 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:19,384 INFO L93 Difference]: Finished difference Result 20064 states and 52884 transitions. [2022-01-17 23:26:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:19,412 INFO L225 Difference]: With dead ends: 20064 [2022-01-17 23:26:19,412 INFO L226 Difference]: Without dead ends: 20064 [2022-01-17 23:26:19,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:19,413 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1344 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:19,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3009 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20064 states. [2022-01-17 23:26:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20064 to 6489. [2022-01-17 23:26:19,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:26:19,559 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:26:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:19,559 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:26:19,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:26:19,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:19,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:19,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:19,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-17 23:26:19,566 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:19,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:19,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1121563802, now seen corresponding path program 161 times [2022-01-17 23:26:19,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:19,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686427169] [2022-01-17 23:26:19,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:19,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:19,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:19,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686427169] [2022-01-17 23:26:19,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686427169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:19,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:19,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:19,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791507719] [2022-01-17 23:26:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:19,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:19,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:19,862 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:21,038 INFO L93 Difference]: Finished difference Result 21014 states and 55010 transitions. [2022-01-17 23:26:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:21,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:21,069 INFO L225 Difference]: With dead ends: 21014 [2022-01-17 23:26:21,069 INFO L226 Difference]: Without dead ends: 21014 [2022-01-17 23:26:21,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:21,069 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1391 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:21,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 2968 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:21,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2022-01-17 23:26:21,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 6471. [2022-01-17 23:26:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-17 23:26:21,218 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-17 23:26:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:21,218 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-17 23:26:21,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:21,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-17 23:26:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:21,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:21,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:21,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-17 23:26:21,225 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:21,225 INFO L85 PathProgramCache]: Analyzing trace with hash -295523978, now seen corresponding path program 162 times [2022-01-17 23:26:21,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:21,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548922600] [2022-01-17 23:26:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:21,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:21,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:21,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548922600] [2022-01-17 23:26:21,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548922600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:21,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:21,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:21,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322580152] [2022-01-17 23:26:21,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:21,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:21,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:21,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:21,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:21,522 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:22,672 INFO L93 Difference]: Finished difference Result 20250 states and 53190 transitions. [2022-01-17 23:26:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:22,698 INFO L225 Difference]: With dead ends: 20250 [2022-01-17 23:26:22,698 INFO L226 Difference]: Without dead ends: 20250 [2022-01-17 23:26:22,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:22,698 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1387 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:22,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 2944 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20250 states. [2022-01-17 23:26:22,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20250 to 6489. [2022-01-17 23:26:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-17 23:26:22,833 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-17 23:26:22,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:22,834 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-17 23:26:22,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:22,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-17 23:26:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:22,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:22,840 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, 1] [2022-01-17 23:26:22,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-17 23:26:22,840 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:22,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:22,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1403115196, now seen corresponding path program 163 times [2022-01-17 23:26:22,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:22,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852940775] [2022-01-17 23:26:22,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:22,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:23,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:23,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852940775] [2022-01-17 23:26:23,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852940775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:23,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:23,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:23,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149916458] [2022-01-17 23:26:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:23,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:23,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:23,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:23,230 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:24,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:24,628 INFO L93 Difference]: Finished difference Result 17062 states and 44958 transitions. [2022-01-17 23:26:24,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:24,628 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:24,654 INFO L225 Difference]: With dead ends: 17062 [2022-01-17 23:26:24,654 INFO L226 Difference]: Without dead ends: 17062 [2022-01-17 23:26:24,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:24,655 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1416 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 3959 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:24,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 3959 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:24,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17062 states. [2022-01-17 23:26:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17062 to 6345. [2022-01-17 23:26:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6345 states, 6343 states have (on average 2.704240895475327) internal successors, (17153), 6344 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6345 states to 6345 states and 17153 transitions. [2022-01-17 23:26:24,779 INFO L78 Accepts]: Start accepts. Automaton has 6345 states and 17153 transitions. Word has length 130 [2022-01-17 23:26:24,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:24,779 INFO L470 AbstractCegarLoop]: Abstraction has 6345 states and 17153 transitions. [2022-01-17 23:26:24,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:24,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6345 states and 17153 transitions. [2022-01-17 23:26:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:24,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:24,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:24,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-17 23:26:24,786 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash 880782274, now seen corresponding path program 164 times [2022-01-17 23:26:24,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:24,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752531931] [2022-01-17 23:26:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:24,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:25,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:25,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752531931] [2022-01-17 23:26:25,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752531931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:25,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:25,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:25,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248742855] [2022-01-17 23:26:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:25,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:25,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:25,087 INFO L87 Difference]: Start difference. First operand 6345 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:26,164 INFO L93 Difference]: Finished difference Result 15462 states and 40972 transitions. [2022-01-17 23:26:26,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:26,164 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:26,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:26,184 INFO L225 Difference]: With dead ends: 15462 [2022-01-17 23:26:26,184 INFO L226 Difference]: Without dead ends: 15462 [2022-01-17 23:26:26,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:26,185 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1338 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:26,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2426 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15462 states. [2022-01-17 23:26:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15462 to 6575. [2022-01-17 23:26:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.7109386885744713) internal successors, (17819), 6574 states have internal predecessors, (17819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 17819 transitions. [2022-01-17 23:26:26,301 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 17819 transitions. Word has length 130 [2022-01-17 23:26:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:26,301 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 17819 transitions. [2022-01-17 23:26:26,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 17819 transitions. [2022-01-17 23:26:26,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:26,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:26,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:26,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-17 23:26:26,308 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:26,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:26,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1715545848, now seen corresponding path program 165 times [2022-01-17 23:26:26,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:26,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165934085] [2022-01-17 23:26:26,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:26,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:26,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:26,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165934085] [2022-01-17 23:26:26,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165934085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:26,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:26,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:26,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135346707] [2022-01-17 23:26:26,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:26,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:26,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:26,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:26,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:26,635 INFO L87 Difference]: Start difference. First operand 6575 states and 17819 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:28,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:28,297 INFO L93 Difference]: Finished difference Result 15370 states and 40700 transitions. [2022-01-17 23:26:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:26:28,297 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:28,318 INFO L225 Difference]: With dead ends: 15370 [2022-01-17 23:26:28,318 INFO L226 Difference]: Without dead ends: 15370 [2022-01-17 23:26:28,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:26:28,319 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1472 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:28,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2415 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15370 states. [2022-01-17 23:26:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15370 to 6557. [2022-01-17 23:26:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:28,483 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:28,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:28,483 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:28,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:28,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:28,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:28,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-17 23:26:28,490 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:28,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:28,491 INFO L85 PathProgramCache]: Analyzing trace with hash -467982716, now seen corresponding path program 166 times [2022-01-17 23:26:28,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:28,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5232920] [2022-01-17 23:26:28,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:28,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:28,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:28,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5232920] [2022-01-17 23:26:28,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5232920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:28,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:28,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:28,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340574077] [2022-01-17 23:26:28,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:28,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:28,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:28,791 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:29,854 INFO L93 Difference]: Finished difference Result 12928 states and 34287 transitions. [2022-01-17 23:26:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:29,870 INFO L225 Difference]: With dead ends: 12928 [2022-01-17 23:26:29,870 INFO L226 Difference]: Without dead ends: 12928 [2022-01-17 23:26:29,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:29,870 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1136 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:29,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 2472 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:29,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2022-01-17 23:26:29,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 6521. [2022-01-17 23:26:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-17 23:26:29,971 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-17 23:26:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:29,971 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-17 23:26:29,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-17 23:26:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:29,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:29,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:29,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-17 23:26:29,978 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:29,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:29,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1777363096, now seen corresponding path program 167 times [2022-01-17 23:26:29,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:29,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150954894] [2022-01-17 23:26:29,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:29,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:30,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:30,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150954894] [2022-01-17 23:26:30,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150954894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:30,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:30,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:30,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011684919] [2022-01-17 23:26:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:30,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:30,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:30,306 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:31,823 INFO L93 Difference]: Finished difference Result 15622 states and 41474 transitions. [2022-01-17 23:26:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:26:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:31,846 INFO L225 Difference]: With dead ends: 15622 [2022-01-17 23:26:31,846 INFO L226 Difference]: Without dead ends: 15622 [2022-01-17 23:26:31,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:26:31,846 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1324 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:31,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 2675 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:31,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-01-17 23:26:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 6557. [2022-01-17 23:26:31,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:31,973 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:31,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:31,973 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:31,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:31,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:31,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:31,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:31,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-17 23:26:31,980 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash 893654692, now seen corresponding path program 168 times [2022-01-17 23:26:31,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:31,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5349829] [2022-01-17 23:26:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:31,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:32,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:32,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5349829] [2022-01-17 23:26:32,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5349829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:32,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:32,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:32,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802560516] [2022-01-17 23:26:32,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:32,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:32,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:32,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:32,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:32,311 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:33,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:33,887 INFO L93 Difference]: Finished difference Result 16572 states and 43600 transitions. [2022-01-17 23:26:33,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:33,887 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:33,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:33,910 INFO L225 Difference]: With dead ends: 16572 [2022-01-17 23:26:33,910 INFO L226 Difference]: Without dead ends: 16572 [2022-01-17 23:26:33,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:26:33,911 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1487 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:33,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2463 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16572 states. [2022-01-17 23:26:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16572 to 6539. [2022-01-17 23:26:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6539 states, 6537 states have (on average 2.7099586966498395) internal successors, (17715), 6538 states have internal predecessors, (17715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6539 states to 6539 states and 17715 transitions. [2022-01-17 23:26:34,049 INFO L78 Accepts]: Start accepts. Automaton has 6539 states and 17715 transitions. Word has length 130 [2022-01-17 23:26:34,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:34,049 INFO L470 AbstractCegarLoop]: Abstraction has 6539 states and 17715 transitions. [2022-01-17 23:26:34,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6539 states and 17715 transitions. [2022-01-17 23:26:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:34,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:34,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:34,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-17 23:26:34,056 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:34,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash -523433088, now seen corresponding path program 169 times [2022-01-17 23:26:34,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:34,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995077857] [2022-01-17 23:26:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:34,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:34,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:34,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995077857] [2022-01-17 23:26:34,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995077857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:34,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:34,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:34,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291040740] [2022-01-17 23:26:34,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:34,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:34,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:34,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:34,382 INFO L87 Difference]: Start difference. First operand 6539 states and 17715 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:35,675 INFO L93 Difference]: Finished difference Result 18292 states and 47725 transitions. [2022-01-17 23:26:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:35,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:35,701 INFO L225 Difference]: With dead ends: 18292 [2022-01-17 23:26:35,701 INFO L226 Difference]: Without dead ends: 18292 [2022-01-17 23:26:35,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:35,701 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1305 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:35,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2882 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:35,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18292 states. [2022-01-17 23:26:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18292 to 6557. [2022-01-17 23:26:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:35,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:35,837 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:35,837 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:35,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:35,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:35,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:35,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-17 23:26:35,844 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:35,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:35,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1175206086, now seen corresponding path program 170 times [2022-01-17 23:26:35,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:35,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792945956] [2022-01-17 23:26:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:35,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:36,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792945956] [2022-01-17 23:26:36,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792945956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:36,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:36,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:36,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183070777] [2022-01-17 23:26:36,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:36,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:36,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:36,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:36,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:36,160 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:37,243 INFO L93 Difference]: Finished difference Result 15104 states and 39493 transitions. [2022-01-17 23:26:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:37,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:37,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:37,264 INFO L225 Difference]: With dead ends: 15104 [2022-01-17 23:26:37,264 INFO L226 Difference]: Without dead ends: 15104 [2022-01-17 23:26:37,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:37,264 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1467 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:37,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 2511 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:26:37,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15104 states. [2022-01-17 23:26:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15104 to 6485. [2022-01-17 23:26:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-17 23:26:37,389 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-17 23:26:37,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:37,389 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-17 23:26:37,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-17 23:26:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:37,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:37,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:37,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-17 23:26:37,396 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:37,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1560981426, now seen corresponding path program 171 times [2022-01-17 23:26:37,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:37,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585245020] [2022-01-17 23:26:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:37,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:37,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:37,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585245020] [2022-01-17 23:26:37,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585245020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:37,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:37,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:37,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197158995] [2022-01-17 23:26:37,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:37,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:37,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:37,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:37,707 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:38,811 INFO L93 Difference]: Finished difference Result 16290 states and 43350 transitions. [2022-01-17 23:26:38,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:38,811 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:38,833 INFO L225 Difference]: With dead ends: 16290 [2022-01-17 23:26:38,834 INFO L226 Difference]: Without dead ends: 16290 [2022-01-17 23:26:38,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:38,834 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1309 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:38,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 2444 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2022-01-17 23:26:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 6557. [2022-01-17 23:26:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:38,983 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:38,983 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:38,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:38,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:38,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:38,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:38,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-17 23:26:38,990 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2010611438, now seen corresponding path program 172 times [2022-01-17 23:26:38,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:38,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913151336] [2022-01-17 23:26:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:38,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:39,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:39,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913151336] [2022-01-17 23:26:39,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913151336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:39,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:39,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:39,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304314387] [2022-01-17 23:26:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:39,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:39,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:39,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:39,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:39,306 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:40,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:40,471 INFO L93 Difference]: Finished difference Result 19104 states and 50718 transitions. [2022-01-17 23:26:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:40,471 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:40,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:40,496 INFO L225 Difference]: With dead ends: 19104 [2022-01-17 23:26:40,496 INFO L226 Difference]: Without dead ends: 19104 [2022-01-17 23:26:40,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:40,496 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1379 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:40,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 2803 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19104 states. [2022-01-17 23:26:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19104 to 6575. [2022-01-17 23:26:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.7109386885744713) internal successors, (17819), 6574 states have internal predecessors, (17819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 17819 transitions. [2022-01-17 23:26:40,629 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 17819 transitions. Word has length 130 [2022-01-17 23:26:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:40,629 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 17819 transitions. [2022-01-17 23:26:40,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:40,629 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 17819 transitions. [2022-01-17 23:26:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:40,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:40,636 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] [2022-01-17 23:26:40,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-17 23:26:40,636 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:40,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:40,636 INFO L85 PathProgramCache]: Analyzing trace with hash 660406350, now seen corresponding path program 173 times [2022-01-17 23:26:40,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:40,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921753664] [2022-01-17 23:26:40,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:40,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:41,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:41,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921753664] [2022-01-17 23:26:41,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921753664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:41,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:41,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:41,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545225534] [2022-01-17 23:26:41,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:41,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:41,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:41,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:41,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:41,015 INFO L87 Difference]: Start difference. First operand 6575 states and 17819 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:42,442 INFO L93 Difference]: Finished difference Result 17322 states and 45686 transitions. [2022-01-17 23:26:42,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:42,443 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:42,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:42,466 INFO L225 Difference]: With dead ends: 17322 [2022-01-17 23:26:42,466 INFO L226 Difference]: Without dead ends: 17322 [2022-01-17 23:26:42,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:42,467 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1426 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:42,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 3797 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:42,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17322 states. [2022-01-17 23:26:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17322 to 6521. [2022-01-17 23:26:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-17 23:26:42,606 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-17 23:26:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:42,606 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-17 23:26:42,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-17 23:26:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:42,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:42,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:42,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-17 23:26:42,613 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:42,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:42,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1079955944, now seen corresponding path program 174 times [2022-01-17 23:26:42,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:42,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75384684] [2022-01-17 23:26:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:42,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:42,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:42,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75384684] [2022-01-17 23:26:42,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75384684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:42,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:42,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:42,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454328160] [2022-01-17 23:26:42,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:42,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:42,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:42,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:42,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:42,996 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:44,525 INFO L93 Difference]: Finished difference Result 18730 states and 49141 transitions. [2022-01-17 23:26:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:44,525 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:44,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:44,545 INFO L225 Difference]: With dead ends: 18730 [2022-01-17 23:26:44,545 INFO L226 Difference]: Without dead ends: 18730 [2022-01-17 23:26:44,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:44,545 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1381 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:44,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 4407 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:44,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18730 states. [2022-01-17 23:26:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18730 to 6557. [2022-01-17 23:26:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:44,664 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:44,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:44,664 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:44,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:44,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:44,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:44,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-17 23:26:44,671 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1591061844, now seen corresponding path program 175 times [2022-01-17 23:26:44,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:44,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164850710] [2022-01-17 23:26:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:44,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:45,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:45,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164850710] [2022-01-17 23:26:45,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164850710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:45,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:45,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:45,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55109574] [2022-01-17 23:26:45,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:45,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:45,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:45,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:45,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:45,064 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:46,583 INFO L93 Difference]: Finished difference Result 19680 states and 51267 transitions. [2022-01-17 23:26:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:46,583 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:46,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:46,612 INFO L225 Difference]: With dead ends: 19680 [2022-01-17 23:26:46,613 INFO L226 Difference]: Without dead ends: 19680 [2022-01-17 23:26:46,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:46,613 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1445 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:46,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 4390 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19680 states. [2022-01-17 23:26:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19680 to 6539. [2022-01-17 23:26:46,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6539 states, 6537 states have (on average 2.7099586966498395) internal successors, (17715), 6538 states have internal predecessors, (17715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6539 states to 6539 states and 17715 transitions. [2022-01-17 23:26:46,788 INFO L78 Accepts]: Start accepts. Automaton has 6539 states and 17715 transitions. Word has length 130 [2022-01-17 23:26:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:46,789 INFO L470 AbstractCegarLoop]: Abstraction has 6539 states and 17715 transitions. [2022-01-17 23:26:46,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6539 states and 17715 transitions. [2022-01-17 23:26:46,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:46,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:46,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:46,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-17 23:26:46,798 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:46,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 173974064, now seen corresponding path program 176 times [2022-01-17 23:26:46,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:46,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874730113] [2022-01-17 23:26:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:46,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:47,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:47,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874730113] [2022-01-17 23:26:47,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874730113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:47,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:47,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:47,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776170228] [2022-01-17 23:26:47,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:47,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:47,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:47,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:47,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:47,200 INFO L87 Difference]: Start difference. First operand 6539 states and 17715 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:48,666 INFO L93 Difference]: Finished difference Result 18916 states and 49447 transitions. [2022-01-17 23:26:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:48,666 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:48,693 INFO L225 Difference]: With dead ends: 18916 [2022-01-17 23:26:48,693 INFO L226 Difference]: Without dead ends: 18916 [2022-01-17 23:26:48,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:48,693 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1311 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:48,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4053 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18916 states. [2022-01-17 23:26:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18916 to 6557. [2022-01-17 23:26:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-17 23:26:48,834 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-17 23:26:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:48,834 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-17 23:26:48,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-17 23:26:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:48,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:48,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:48,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-17 23:26:48,841 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1872613238, now seen corresponding path program 177 times [2022-01-17 23:26:48,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:48,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113165931] [2022-01-17 23:26:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:48,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:49,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:49,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113165931] [2022-01-17 23:26:49,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113165931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:49,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:49,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:49,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898081397] [2022-01-17 23:26:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:49,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:49,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:49,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:49,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:49,137 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:50,261 INFO L93 Difference]: Finished difference Result 15728 states and 41215 transitions. [2022-01-17 23:26:50,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:50,281 INFO L225 Difference]: With dead ends: 15728 [2022-01-17 23:26:50,282 INFO L226 Difference]: Without dead ends: 15728 [2022-01-17 23:26:50,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:50,282 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1204 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:50,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 2846 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:50,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15728 states. [2022-01-17 23:26:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15728 to 6413. [2022-01-17 23:26:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6413 states, 6411 states have (on average 2.706442052721884) internal successors, (17351), 6412 states have internal predecessors, (17351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6413 states to 6413 states and 17351 transitions. [2022-01-17 23:26:50,402 INFO L78 Accepts]: Start accepts. Automaton has 6413 states and 17351 transitions. Word has length 130 [2022-01-17 23:26:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:50,402 INFO L470 AbstractCegarLoop]: Abstraction has 6413 states and 17351 transitions. [2022-01-17 23:26:50,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6413 states and 17351 transitions. [2022-01-17 23:26:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:50,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:50,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:50,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-17 23:26:50,409 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:50,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:50,409 INFO L85 PathProgramCache]: Analyzing trace with hash 760473388, now seen corresponding path program 178 times [2022-01-17 23:26:50,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:50,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988088237] [2022-01-17 23:26:50,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:50,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:50,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:50,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988088237] [2022-01-17 23:26:50,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988088237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:50,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:50,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:50,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638521739] [2022-01-17 23:26:50,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:50,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:50,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:50,757 INFO L87 Difference]: Start difference. First operand 6413 states and 17351 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:52,221 INFO L93 Difference]: Finished difference Result 17002 states and 45380 transitions. [2022-01-17 23:26:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:26:52,221 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:52,243 INFO L225 Difference]: With dead ends: 17002 [2022-01-17 23:26:52,243 INFO L226 Difference]: Without dead ends: 17002 [2022-01-17 23:26:52,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:26:52,243 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1323 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:52,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 2658 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:26:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17002 states. [2022-01-17 23:26:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17002 to 6449. [2022-01-17 23:26:52,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6449 states, 6447 states have (on average 2.7074608344966653) internal successors, (17455), 6448 states have internal predecessors, (17455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6449 states to 6449 states and 17455 transitions. [2022-01-17 23:26:52,362 INFO L78 Accepts]: Start accepts. Automaton has 6449 states and 17455 transitions. Word has length 130 [2022-01-17 23:26:52,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:52,362 INFO L470 AbstractCegarLoop]: Abstraction has 6449 states and 17455 transitions. [2022-01-17 23:26:52,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6449 states and 17455 transitions. [2022-01-17 23:26:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:52,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:52,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:52,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-17 23:26:52,369 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1601353744, now seen corresponding path program 179 times [2022-01-17 23:26:52,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:52,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456744877] [2022-01-17 23:26:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:52,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:52,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:52,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456744877] [2022-01-17 23:26:52,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456744877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:52,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:52,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:52,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193328853] [2022-01-17 23:26:52,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:52,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:52,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:52,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:52,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:52,763 INFO L87 Difference]: Start difference. First operand 6449 states and 17455 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:54,246 INFO L93 Difference]: Finished difference Result 20304 states and 54104 transitions. [2022-01-17 23:26:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:54,247 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:54,276 INFO L225 Difference]: With dead ends: 20304 [2022-01-17 23:26:54,276 INFO L226 Difference]: Without dead ends: 20304 [2022-01-17 23:26:54,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:26:54,277 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1315 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:54,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 4135 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:26:54,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20304 states. [2022-01-17 23:26:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20304 to 6485. [2022-01-17 23:26:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-17 23:26:54,440 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-17 23:26:54,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:54,440 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-17 23:26:54,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-17 23:26:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:54,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:54,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:54,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-17 23:26:54,447 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:54,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:54,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1679075312, now seen corresponding path program 180 times [2022-01-17 23:26:54,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500113065] [2022-01-17 23:26:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:54,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:54,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:54,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500113065] [2022-01-17 23:26:54,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500113065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:54,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:54,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:26:54,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184673074] [2022-01-17 23:26:54,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:54,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:26:54,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:26:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:26:54,776 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:55,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:55,961 INFO L93 Difference]: Finished difference Result 19980 states and 53168 transitions. [2022-01-17 23:26:55,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:26:55,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:55,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:55,989 INFO L225 Difference]: With dead ends: 19980 [2022-01-17 23:26:55,990 INFO L226 Difference]: Without dead ends: 19980 [2022-01-17 23:26:55,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:26:55,990 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1337 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:55,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 2794 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19980 states. [2022-01-17 23:26:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19980 to 6503. [2022-01-17 23:26:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:56,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-17 23:26:56,136 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-17 23:26:56,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:56,136 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-17 23:26:56,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-17 23:26:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:56,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:56,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:56,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-17 23:26:56,144 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash 55125804, now seen corresponding path program 181 times [2022-01-17 23:26:56,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:56,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981170437] [2022-01-17 23:26:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:56,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:56,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:56,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981170437] [2022-01-17 23:26:56,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981170437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:56,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:56,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:26:56,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653987388] [2022-01-17 23:26:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:56,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:26:56,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:56,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:26:56,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:26:56,475 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:26:58,034 INFO L93 Difference]: Finished difference Result 18198 states and 48136 transitions. [2022-01-17 23:26:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:26:58,034 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:26:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:26:58,059 INFO L225 Difference]: With dead ends: 18198 [2022-01-17 23:26:58,059 INFO L226 Difference]: Without dead ends: 18198 [2022-01-17 23:26:58,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:26:58,059 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1548 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:26:58,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 2454 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:26:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18198 states. [2022-01-17 23:26:58,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18198 to 6431. [2022-01-17 23:26:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6431 states, 6429 states have (on average 2.7069528698086796) internal successors, (17403), 6430 states have internal predecessors, (17403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6431 states to 6431 states and 17403 transitions. [2022-01-17 23:26:58,191 INFO L78 Accepts]: Start accepts. Automaton has 6431 states and 17403 transitions. Word has length 130 [2022-01-17 23:26:58,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:26:58,191 INFO L470 AbstractCegarLoop]: Abstraction has 6431 states and 17403 transitions. [2022-01-17 23:26:58,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:26:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6431 states and 17403 transitions. [2022-01-17 23:26:58,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:26:58,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:26:58,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:26:58,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-17 23:26:58,198 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:26:58,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:26:58,198 INFO L85 PathProgramCache]: Analyzing trace with hash -419121350, now seen corresponding path program 182 times [2022-01-17 23:26:58,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:26:58,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208309114] [2022-01-17 23:26:58,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:26:58,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:26:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:26:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:26:58,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:26:58,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208309114] [2022-01-17 23:26:58,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208309114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:26:58,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:26:58,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:26:58,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13167254] [2022-01-17 23:26:58,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:26:58,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:26:58,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:26:58,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:26:58,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:26:58,594 INFO L87 Difference]: Start difference. First operand 6431 states and 17403 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:00,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:00,060 INFO L93 Difference]: Finished difference Result 19842 states and 52219 transitions. [2022-01-17 23:27:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:00,060 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:00,088 INFO L225 Difference]: With dead ends: 19842 [2022-01-17 23:27:00,088 INFO L226 Difference]: Without dead ends: 19842 [2022-01-17 23:27:00,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:00,089 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1206 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:00,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 4155 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19842 states. [2022-01-17 23:27:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19842 to 6503. [2022-01-17 23:27:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-17 23:27:00,238 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-17 23:27:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:00,238 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-17 23:27:00,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-17 23:27:00,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:00,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:00,245 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] [2022-01-17 23:27:00,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-17 23:27:00,245 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1433659590, now seen corresponding path program 183 times [2022-01-17 23:27:00,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:00,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776697583] [2022-01-17 23:27:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:00,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:00,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:00,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776697583] [2022-01-17 23:27:00,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776697583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:00,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:00,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:00,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549868458] [2022-01-17 23:27:00,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:00,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:00,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:00,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:00,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:00,594 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:02,364 INFO L93 Difference]: Finished difference Result 22656 states and 59587 transitions. [2022-01-17 23:27:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:27:02,365 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:02,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:02,396 INFO L225 Difference]: With dead ends: 22656 [2022-01-17 23:27:02,396 INFO L226 Difference]: Without dead ends: 22656 [2022-01-17 23:27:02,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:27:02,396 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1472 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:02,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2662 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:27:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22656 states. [2022-01-17 23:27:02,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22656 to 6521. [2022-01-17 23:27:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-17 23:27:02,557 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-17 23:27:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:02,557 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-17 23:27:02,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-17 23:27:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:02,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:02,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:02,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-17 23:27:02,564 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1237358198, now seen corresponding path program 184 times [2022-01-17 23:27:02,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:02,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315001334] [2022-01-17 23:27:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:02,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:02,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:02,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315001334] [2022-01-17 23:27:02,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315001334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:02,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:02,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:02,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147855663] [2022-01-17 23:27:02,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:02,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:02,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:02,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:02,878 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:04,021 INFO L93 Difference]: Finished difference Result 20874 states and 54555 transitions. [2022-01-17 23:27:04,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:04,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:04,049 INFO L225 Difference]: With dead ends: 20874 [2022-01-17 23:27:04,049 INFO L226 Difference]: Without dead ends: 20874 [2022-01-17 23:27:04,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:04,050 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1300 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:04,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 2717 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20874 states. [2022-01-17 23:27:04,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20874 to 6467. [2022-01-17 23:27:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6465 states have (on average 2.7079659706109824) internal successors, (17507), 6466 states have internal predecessors, (17507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 17507 transitions. [2022-01-17 23:27:04,212 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 17507 transitions. Word has length 130 [2022-01-17 23:27:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:04,212 INFO L470 AbstractCegarLoop]: Abstraction has 6467 states and 17507 transitions. [2022-01-17 23:27:04,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 17507 transitions. [2022-01-17 23:27:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:04,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:04,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:04,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-17 23:27:04,219 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1679785432, now seen corresponding path program 185 times [2022-01-17 23:27:04,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:04,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783494646] [2022-01-17 23:27:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:04,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:04,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:04,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783494646] [2022-01-17 23:27:04,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783494646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:04,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:04,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:04,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330905210] [2022-01-17 23:27:04,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:04,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:04,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:04,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:04,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:04,603 INFO L87 Difference]: Start difference. First operand 6467 states and 17507 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:06,088 INFO L93 Difference]: Finished difference Result 19354 states and 50863 transitions. [2022-01-17 23:27:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:06,110 INFO L225 Difference]: With dead ends: 19354 [2022-01-17 23:27:06,110 INFO L226 Difference]: Without dead ends: 19354 [2022-01-17 23:27:06,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:06,111 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1382 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:06,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 4112 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19354 states. [2022-01-17 23:27:06,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19354 to 6503. [2022-01-17 23:27:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-17 23:27:06,239 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-17 23:27:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:06,239 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-17 23:27:06,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-17 23:27:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:06,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:06,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:06,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-17 23:27:06,246 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:06,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:06,246 INFO L85 PathProgramCache]: Analyzing trace with hash 55835924, now seen corresponding path program 186 times [2022-01-17 23:27:06,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:06,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404042447] [2022-01-17 23:27:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:06,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:06,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:06,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404042447] [2022-01-17 23:27:06,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404042447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:06,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:06,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:06,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721858787] [2022-01-17 23:27:06,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:06,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:06,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:06,628 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:08,117 INFO L93 Difference]: Finished difference Result 20304 states and 52989 transitions. [2022-01-17 23:27:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:08,117 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:08,144 INFO L225 Difference]: With dead ends: 20304 [2022-01-17 23:27:08,144 INFO L226 Difference]: Without dead ends: 20304 [2022-01-17 23:27:08,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:08,145 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1526 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:08,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 4452 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20304 states. [2022-01-17 23:27:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20304 to 6485. [2022-01-17 23:27:08,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-17 23:27:08,289 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-17 23:27:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:08,289 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-17 23:27:08,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-17 23:27:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:08,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:08,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:08,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-17 23:27:08,296 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1361251856, now seen corresponding path program 187 times [2022-01-17 23:27:08,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:08,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575916143] [2022-01-17 23:27:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:08,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:08,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:08,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:08,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575916143] [2022-01-17 23:27:08,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575916143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:08,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:08,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:08,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34779269] [2022-01-17 23:27:08,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:08,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:08,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:08,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:08,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:08,612 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:09,738 INFO L93 Difference]: Finished difference Result 19540 states and 51169 transitions. [2022-01-17 23:27:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:09,764 INFO L225 Difference]: With dead ends: 19540 [2022-01-17 23:27:09,764 INFO L226 Difference]: Without dead ends: 19540 [2022-01-17 23:27:09,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:09,765 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1413 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:09,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 2568 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19540 states. [2022-01-17 23:27:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19540 to 6503. [2022-01-17 23:27:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-17 23:27:09,907 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-17 23:27:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:09,907 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-17 23:27:09,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-17 23:27:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:09,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:09,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:09,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-17 23:27:09,914 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:09,915 INFO L85 PathProgramCache]: Analyzing trace with hash 337387318, now seen corresponding path program 188 times [2022-01-17 23:27:09,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:09,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280887388] [2022-01-17 23:27:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:09,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:10,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280887388] [2022-01-17 23:27:10,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280887388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:10,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:10,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:10,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881902092] [2022-01-17 23:27:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:10,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:10,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:10,241 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:11,739 INFO L93 Difference]: Finished difference Result 16352 states and 42937 transitions. [2022-01-17 23:27:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:11,761 INFO L225 Difference]: With dead ends: 16352 [2022-01-17 23:27:11,761 INFO L226 Difference]: Without dead ends: 16352 [2022-01-17 23:27:11,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:27:11,761 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1378 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:11,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 2538 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:11,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16352 states. [2022-01-17 23:27:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16352 to 6377. [2022-01-17 23:27:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6377 states, 6375 states have (on average 2.7054117647058824) internal successors, (17247), 6376 states have internal predecessors, (17247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6377 states to 6377 states and 17247 transitions. [2022-01-17 23:27:11,887 INFO L78 Accepts]: Start accepts. Automaton has 6377 states and 17247 transitions. Word has length 130 [2022-01-17 23:27:11,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:11,887 INFO L470 AbstractCegarLoop]: Abstraction has 6377 states and 17247 transitions. [2022-01-17 23:27:11,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:11,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6377 states and 17247 transitions. [2022-01-17 23:27:11,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:11,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:11,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:11,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-17 23:27:11,894 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:11,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash 310603016, now seen corresponding path program 189 times [2022-01-17 23:27:11,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:11,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860545072] [2022-01-17 23:27:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:11,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:12,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:12,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:12,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860545072] [2022-01-17 23:27:12,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860545072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:12,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:12,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:12,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764059158] [2022-01-17 23:27:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:12,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:12,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:12,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:12,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:12,213 INFO L87 Difference]: Start difference. First operand 6377 states and 17247 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:13,043 INFO L93 Difference]: Finished difference Result 6918 states and 18387 transitions. [2022-01-17 23:27:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:27:13,043 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:13,052 INFO L225 Difference]: With dead ends: 6918 [2022-01-17 23:27:13,052 INFO L226 Difference]: Without dead ends: 6918 [2022-01-17 23:27:13,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:27:13,053 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 791 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:13,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2370 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:13,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2022-01-17 23:27:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 6026. [2022-01-17 23:27:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-17 23:27:13,125 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-17 23:27:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:13,125 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-17 23:27:13,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-17 23:27:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:13,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:13,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:13,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-17 23:27:13,131 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:13,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1528824236, now seen corresponding path program 190 times [2022-01-17 23:27:13,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:13,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191082501] [2022-01-17 23:27:13,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:13,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:13,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:13,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191082501] [2022-01-17 23:27:13,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191082501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:13,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:13,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:13,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247991714] [2022-01-17 23:27:13,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:13,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:13,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:13,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:13,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:13,476 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:14,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:14,772 INFO L93 Difference]: Finished difference Result 10444 states and 28329 transitions. [2022-01-17 23:27:14,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:27:14,773 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:14,785 INFO L225 Difference]: With dead ends: 10444 [2022-01-17 23:27:14,786 INFO L226 Difference]: Without dead ends: 10444 [2022-01-17 23:27:14,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:27:14,786 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 1104 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:14,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2260 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-01-17 23:27:14,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 6154. [2022-01-17 23:27:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:27:14,870 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:27:14,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:14,870 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:27:14,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:27:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:14,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:14,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:14,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-17 23:27:14,877 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1459609368, now seen corresponding path program 191 times [2022-01-17 23:27:14,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:14,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861152457] [2022-01-17 23:27:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:14,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:15,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:15,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861152457] [2022-01-17 23:27:15,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861152457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:15,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:15,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:15,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877521944] [2022-01-17 23:27:15,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:15,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:15,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:15,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:15,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:15,227 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:16,490 INFO L93 Difference]: Finished difference Result 13929 states and 37685 transitions. [2022-01-17 23:27:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:16,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:16,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:16,508 INFO L225 Difference]: With dead ends: 13929 [2022-01-17 23:27:16,508 INFO L226 Difference]: Without dead ends: 13929 [2022-01-17 23:27:16,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:16,509 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1075 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:16,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 2429 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:16,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13929 states. [2022-01-17 23:27:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13929 to 6170. [2022-01-17 23:27:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:27:16,643 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:27:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:16,644 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:27:16,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:27:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:16,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:16,650 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] [2022-01-17 23:27:16,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-17 23:27:16,651 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:16,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash 473530796, now seen corresponding path program 192 times [2022-01-17 23:27:16,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:16,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449958601] [2022-01-17 23:27:16,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:16,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:17,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:17,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449958601] [2022-01-17 23:27:17,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449958601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:17,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:17,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:17,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706483430] [2022-01-17 23:27:17,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:17,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:17,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:17,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:17,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:17,005 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:18,120 INFO L93 Difference]: Finished difference Result 13641 states and 36839 transitions. [2022-01-17 23:27:18,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:18,121 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:18,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:18,140 INFO L225 Difference]: With dead ends: 13641 [2022-01-17 23:27:18,140 INFO L226 Difference]: Without dead ends: 13641 [2022-01-17 23:27:18,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:18,140 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1239 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:18,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 2401 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:18,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-01-17 23:27:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 6202. [2022-01-17 23:27:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-17 23:27:18,249 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-17 23:27:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:18,249 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-17 23:27:18,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-17 23:27:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:18,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:18,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:18,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-17 23:27:18,256 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -541007444, now seen corresponding path program 193 times [2022-01-17 23:27:18,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:18,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048236223] [2022-01-17 23:27:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:18,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:18,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:18,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048236223] [2022-01-17 23:27:18,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048236223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:18,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:18,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:18,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855977971] [2022-01-17 23:27:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:18,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:18,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:18,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:18,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:18,568 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:19,647 INFO L93 Difference]: Finished difference Result 13353 states and 35993 transitions. [2022-01-17 23:27:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:19,663 INFO L225 Difference]: With dead ends: 13353 [2022-01-17 23:27:19,664 INFO L226 Difference]: Without dead ends: 13353 [2022-01-17 23:27:19,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:19,664 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1388 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:19,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 2338 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:19,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13353 states. [2022-01-17 23:27:19,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13353 to 6218. [2022-01-17 23:27:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:19,769 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:19,769 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:19,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:19,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:19,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:19,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-17 23:27:19,776 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:19,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:19,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2130010344, now seen corresponding path program 194 times [2022-01-17 23:27:19,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:19,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097515397] [2022-01-17 23:27:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:19,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:20,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:20,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097515397] [2022-01-17 23:27:20,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097515397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:20,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:20,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:20,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080402756] [2022-01-17 23:27:20,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:20,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:20,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:20,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:20,121 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:21,524 INFO L93 Difference]: Finished difference Result 11528 states and 30920 transitions. [2022-01-17 23:27:21,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:27:21,524 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:21,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:21,539 INFO L225 Difference]: With dead ends: 11528 [2022-01-17 23:27:21,539 INFO L226 Difference]: Without dead ends: 11528 [2022-01-17 23:27:21,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:27:21,540 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1464 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:21,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 2259 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11528 states. [2022-01-17 23:27:21,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11528 to 6154. [2022-01-17 23:27:21,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:27:21,667 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:27:21,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:21,667 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:27:21,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:21,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:27:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:21,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:21,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:21,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-17 23:27:21,673 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1402626364, now seen corresponding path program 195 times [2022-01-17 23:27:21,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779259143] [2022-01-17 23:27:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:21,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:21,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:21,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779259143] [2022-01-17 23:27:21,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779259143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:21,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:21,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:21,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434269875] [2022-01-17 23:27:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:21,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:21,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:21,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:21,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:21,989 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:23,087 INFO L93 Difference]: Finished difference Result 13252 states and 35375 transitions. [2022-01-17 23:27:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:23,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:23,105 INFO L225 Difference]: With dead ends: 13252 [2022-01-17 23:27:23,105 INFO L226 Difference]: Without dead ends: 13252 [2022-01-17 23:27:23,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:23,105 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1185 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:23,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 2570 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:23,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13252 states. [2022-01-17 23:27:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13252 to 6186. [2022-01-17 23:27:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-17 23:27:23,206 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-17 23:27:23,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:23,206 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-17 23:27:23,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:23,206 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-17 23:27:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:23,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:23,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:23,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-17 23:27:23,214 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:23,214 INFO L85 PathProgramCache]: Analyzing trace with hash -959200768, now seen corresponding path program 196 times [2022-01-17 23:27:23,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:23,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338844297] [2022-01-17 23:27:23,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:23,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:23,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:23,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338844297] [2022-01-17 23:27:23,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338844297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:23,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:23,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:23,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111806267] [2022-01-17 23:27:23,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:23,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:23,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:23,525 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:24,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:24,690 INFO L93 Difference]: Finished difference Result 16380 states and 43703 transitions. [2022-01-17 23:27:24,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:24,690 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:24,712 INFO L225 Difference]: With dead ends: 16380 [2022-01-17 23:27:24,712 INFO L226 Difference]: Without dead ends: 16380 [2022-01-17 23:27:24,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:24,712 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1275 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:24,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1275 Valid, 2835 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:24,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16380 states. [2022-01-17 23:27:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16380 to 6218. [2022-01-17 23:27:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:24,833 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:24,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:24,833 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:24,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:24,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:24,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:24,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:24,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:24,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-17 23:27:24,840 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:24,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1973739008, now seen corresponding path program 197 times [2022-01-17 23:27:24,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:24,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660202687] [2022-01-17 23:27:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:24,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:25,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:25,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660202687] [2022-01-17 23:27:25,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660202687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:25,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:25,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:25,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303411343] [2022-01-17 23:27:25,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:25,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:25,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:25,160 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:26,270 INFO L93 Difference]: Finished difference Result 16092 states and 42857 transitions. [2022-01-17 23:27:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:26,270 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:26,293 INFO L225 Difference]: With dead ends: 16092 [2022-01-17 23:27:26,293 INFO L226 Difference]: Without dead ends: 16092 [2022-01-17 23:27:26,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:26,293 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1189 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:26,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 2576 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:26,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16092 states. [2022-01-17 23:27:26,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16092 to 6234. [2022-01-17 23:27:26,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-17 23:27:26,409 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-17 23:27:26,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:26,409 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-17 23:27:26,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-17 23:27:26,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:26,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:26,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:26,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-17 23:27:26,416 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash 697278780, now seen corresponding path program 198 times [2022-01-17 23:27:26,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:26,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103310186] [2022-01-17 23:27:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:26,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:26,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:26,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103310186] [2022-01-17 23:27:26,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103310186] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:26,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:26,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:26,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682639371] [2022-01-17 23:27:26,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:26,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:26,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:26,760 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:27,894 INFO L93 Difference]: Finished difference Result 14267 states and 37784 transitions. [2022-01-17 23:27:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:27,894 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:27,913 INFO L225 Difference]: With dead ends: 14267 [2022-01-17 23:27:27,913 INFO L226 Difference]: Without dead ends: 14267 [2022-01-17 23:27:27,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:27,913 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1330 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:27,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 2551 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2022-01-17 23:27:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 6170. [2022-01-17 23:27:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:27:28,018 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:27:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:28,018 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:27:28,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:27:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:28,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:28,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:28,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-17 23:27:28,024 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash 223031626, now seen corresponding path program 199 times [2022-01-17 23:27:28,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:28,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767293746] [2022-01-17 23:27:28,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:28,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:28,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:28,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767293746] [2022-01-17 23:27:28,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767293746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:28,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:28,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:28,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480698555] [2022-01-17 23:27:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:28,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:28,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:28,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:28,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:28,357 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:29,866 INFO L93 Difference]: Finished difference Result 12895 states and 34347 transitions. [2022-01-17 23:27:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:27:29,867 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:29,883 INFO L225 Difference]: With dead ends: 12895 [2022-01-17 23:27:29,883 INFO L226 Difference]: Without dead ends: 12895 [2022-01-17 23:27:29,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:27:29,884 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1295 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:29,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 2749 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:27:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12895 states. [2022-01-17 23:27:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12895 to 6234. [2022-01-17 23:27:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-17 23:27:29,981 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-17 23:27:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:29,981 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-17 23:27:29,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:29,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-17 23:27:29,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:29,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:29,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:29,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-17 23:27:29,988 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:29,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:29,988 INFO L85 PathProgramCache]: Analyzing trace with hash -791506614, now seen corresponding path program 200 times [2022-01-17 23:27:29,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:29,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307783665] [2022-01-17 23:27:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:29,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:30,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:30,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307783665] [2022-01-17 23:27:30,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307783665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:30,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:30,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:30,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992960493] [2022-01-17 23:27:30,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:30,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:30,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:30,381 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:31,877 INFO L93 Difference]: Finished difference Result 15597 states and 41465 transitions. [2022-01-17 23:27:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:31,899 INFO L225 Difference]: With dead ends: 15597 [2022-01-17 23:27:31,899 INFO L226 Difference]: Without dead ends: 15597 [2022-01-17 23:27:31,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:31,901 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1327 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 4163 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:31,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 4163 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:31,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15597 states. [2022-01-17 23:27:32,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15597 to 6250. [2022-01-17 23:27:32,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 6248 states have (on average 2.732234314980794) internal successors, (17071), 6249 states have internal predecessors, (17071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 17071 transitions. [2022-01-17 23:27:32,025 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 17071 transitions. Word has length 130 [2022-01-17 23:27:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:32,025 INFO L470 AbstractCegarLoop]: Abstraction has 6250 states and 17071 transitions. [2022-01-17 23:27:32,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 17071 transitions. [2022-01-17 23:27:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:32,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:32,032 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] [2022-01-17 23:27:32,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-17 23:27:32,033 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:32,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1879511174, now seen corresponding path program 201 times [2022-01-17 23:27:32,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:32,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860423672] [2022-01-17 23:27:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:32,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:32,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:32,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860423672] [2022-01-17 23:27:32,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860423672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:32,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:32,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:32,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638718549] [2022-01-17 23:27:32,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:32,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:32,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:32,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:32,433 INFO L87 Difference]: Start difference. First operand 6250 states and 17071 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:33,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:33,547 INFO L93 Difference]: Finished difference Result 13772 states and 36392 transitions. [2022-01-17 23:27:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:33,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:33,565 INFO L225 Difference]: With dead ends: 13772 [2022-01-17 23:27:33,566 INFO L226 Difference]: Without dead ends: 13772 [2022-01-17 23:27:33,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:33,566 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1331 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:33,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 2505 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13772 states. [2022-01-17 23:27:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13772 to 6202. [2022-01-17 23:27:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-17 23:27:33,670 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-17 23:27:33,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:33,670 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-17 23:27:33,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:33,670 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-17 23:27:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:33,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:33,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:33,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-17 23:27:33,677 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1973028888, now seen corresponding path program 202 times [2022-01-17 23:27:33,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:33,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115111342] [2022-01-17 23:27:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:33,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:34,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:34,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115111342] [2022-01-17 23:27:34,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115111342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:34,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:34,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:34,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294381233] [2022-01-17 23:27:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:34,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:34,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:34,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:34,006 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:35,088 INFO L93 Difference]: Finished difference Result 12469 states and 33137 transitions. [2022-01-17 23:27:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:35,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:35,105 INFO L225 Difference]: With dead ends: 12469 [2022-01-17 23:27:35,105 INFO L226 Difference]: Without dead ends: 12469 [2022-01-17 23:27:35,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:35,106 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1268 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:35,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 2492 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:27:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12469 states. [2022-01-17 23:27:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12469 to 6234. [2022-01-17 23:27:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-17 23:27:35,207 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-17 23:27:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:35,207 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-17 23:27:35,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-17 23:27:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:35,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:35,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:35,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-17 23:27:35,214 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:35,214 INFO L85 PathProgramCache]: Analyzing trace with hash 697988900, now seen corresponding path program 203 times [2022-01-17 23:27:35,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:35,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990396499] [2022-01-17 23:27:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:35,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:35,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:35,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990396499] [2022-01-17 23:27:35,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990396499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:35,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:35,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:35,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026242642] [2022-01-17 23:27:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:35,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:35,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:35,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:35,547 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:37,207 INFO L93 Difference]: Finished difference Result 13277 states and 35000 transitions. [2022-01-17 23:27:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:37,207 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:37,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:37,225 INFO L225 Difference]: With dead ends: 13277 [2022-01-17 23:27:37,225 INFO L226 Difference]: Without dead ends: 13277 [2022-01-17 23:27:37,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:27:37,226 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1396 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:37,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 2725 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:27:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13277 states. [2022-01-17 23:27:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13277 to 6218. [2022-01-17 23:27:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:37,326 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:37,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:37,326 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:37,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:37,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:37,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:37,332 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] [2022-01-17 23:27:37,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-17 23:27:37,333 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:37,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:37,333 INFO L85 PathProgramCache]: Analyzing trace with hash -719098880, now seen corresponding path program 204 times [2022-01-17 23:27:37,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:37,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467198845] [2022-01-17 23:27:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:37,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:37,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:37,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:37,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467198845] [2022-01-17 23:27:37,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467198845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:37,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:37,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:37,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392752508] [2022-01-17 23:27:37,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:37,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:37,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:37,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:37,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:37,654 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:38,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:38,715 INFO L93 Difference]: Finished difference Result 12622 states and 33387 transitions. [2022-01-17 23:27:38,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:38,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:38,732 INFO L225 Difference]: With dead ends: 12622 [2022-01-17 23:27:38,732 INFO L226 Difference]: Without dead ends: 12622 [2022-01-17 23:27:38,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:38,732 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1315 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:38,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 2427 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:27:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12622 states. [2022-01-17 23:27:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12622 to 6234. [2022-01-17 23:27:38,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-17 23:27:38,826 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-17 23:27:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:38,826 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-17 23:27:38,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-17 23:27:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:38,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:38,832 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] [2022-01-17 23:27:38,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-17 23:27:38,832 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:38,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:38,833 INFO L85 PathProgramCache]: Analyzing trace with hash 979540294, now seen corresponding path program 205 times [2022-01-17 23:27:38,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:38,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824404754] [2022-01-17 23:27:38,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:38,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:39,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:39,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824404754] [2022-01-17 23:27:39,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824404754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:39,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:39,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:27:39,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328000762] [2022-01-17 23:27:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:39,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:27:39,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:27:39,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:27:39,430 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:41,674 INFO L93 Difference]: Finished difference Result 10818 states and 28252 transitions. [2022-01-17 23:27:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:27:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:41,688 INFO L225 Difference]: With dead ends: 10818 [2022-01-17 23:27:41,688 INFO L226 Difference]: Without dead ends: 10818 [2022-01-17 23:27:41,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=520, Invalid=1642, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:27:41,689 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 1309 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:41,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 3113 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:41,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2022-01-17 23:27:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 6298. [2022-01-17 23:27:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6298 states, 6296 states have (on average 2.7293519695044473) internal successors, (17184), 6297 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 17184 transitions. [2022-01-17 23:27:41,773 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 17184 transitions. Word has length 130 [2022-01-17 23:27:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:41,774 INFO L470 AbstractCegarLoop]: Abstraction has 6298 states and 17184 transitions. [2022-01-17 23:27:41,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 17184 transitions. [2022-01-17 23:27:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:41,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:41,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:41,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-17 23:27:41,780 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1864894330, now seen corresponding path program 206 times [2022-01-17 23:27:41,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:41,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038943127] [2022-01-17 23:27:41,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:41,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:42,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:42,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038943127] [2022-01-17 23:27:42,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038943127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:42,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:42,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:42,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113091909] [2022-01-17 23:27:42,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:42,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:42,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:42,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:42,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:42,113 INFO L87 Difference]: Start difference. First operand 6298 states and 17184 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:43,637 INFO L93 Difference]: Finished difference Result 9607 states and 25527 transitions. [2022-01-17 23:27:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:27:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:43,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:43,650 INFO L225 Difference]: With dead ends: 9607 [2022-01-17 23:27:43,650 INFO L226 Difference]: Without dead ends: 9607 [2022-01-17 23:27:43,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:27:43,651 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1301 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:43,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 2381 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:43,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2022-01-17 23:27:43,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 6154. [2022-01-17 23:27:43,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:27:43,728 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:27:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:43,728 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:27:43,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:27:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:43,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:43,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:43,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-17 23:27:43,734 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -907306614, now seen corresponding path program 207 times [2022-01-17 23:27:43,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:43,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611599452] [2022-01-17 23:27:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:43,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:44,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:44,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611599452] [2022-01-17 23:27:44,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611599452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:44,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:44,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:44,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737969501] [2022-01-17 23:27:44,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:44,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:44,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:44,079 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:45,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:45,680 INFO L93 Difference]: Finished difference Result 16857 states and 44995 transitions. [2022-01-17 23:27:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:45,702 INFO L225 Difference]: With dead ends: 16857 [2022-01-17 23:27:45,702 INFO L226 Difference]: Without dead ends: 16857 [2022-01-17 23:27:45,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:27:45,702 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1517 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:45,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 2934 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:27:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2022-01-17 23:27:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 6234. [2022-01-17 23:27:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-17 23:27:45,826 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-17 23:27:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:45,826 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-17 23:27:45,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:45,827 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-17 23:27:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:45,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:45,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:45,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-17 23:27:45,834 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:45,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:45,834 INFO L85 PathProgramCache]: Analyzing trace with hash 791332560, now seen corresponding path program 208 times [2022-01-17 23:27:45,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:45,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095530099] [2022-01-17 23:27:45,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:45,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:46,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:46,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095530099] [2022-01-17 23:27:46,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095530099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:46,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:46,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:46,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539057924] [2022-01-17 23:27:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:46,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:46,220 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:47,867 INFO L93 Difference]: Finished difference Result 16761 states and 44713 transitions. [2022-01-17 23:27:47,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:47,867 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:47,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:47,892 INFO L225 Difference]: With dead ends: 16761 [2022-01-17 23:27:47,892 INFO L226 Difference]: Without dead ends: 16761 [2022-01-17 23:27:47,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:47,892 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1417 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:47,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 4382 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16761 states. [2022-01-17 23:27:48,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16761 to 6218. [2022-01-17 23:27:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:48,020 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:48,020 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:48,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:48,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:48,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:48,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-17 23:27:48,027 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:48,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2038895692, now seen corresponding path program 209 times [2022-01-17 23:27:48,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:48,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083367309] [2022-01-17 23:27:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:48,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:48,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:48,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083367309] [2022-01-17 23:27:48,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083367309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:48,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:48,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:48,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551090862] [2022-01-17 23:27:48,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:48,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:48,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:48,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:48,415 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:49,813 INFO L93 Difference]: Finished difference Result 14384 states and 38449 transitions. [2022-01-17 23:27:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:49,813 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:49,832 INFO L225 Difference]: With dead ends: 14384 [2022-01-17 23:27:49,832 INFO L226 Difference]: Without dead ends: 14384 [2022-01-17 23:27:49,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:49,833 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1304 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:49,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 4382 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:49,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14384 states. [2022-01-17 23:27:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14384 to 6186. [2022-01-17 23:27:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:49,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-17 23:27:49,955 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-17 23:27:49,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:49,955 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-17 23:27:49,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-17 23:27:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:49,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:49,961 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] [2022-01-17 23:27:49,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-17 23:27:49,962 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:49,962 INFO L85 PathProgramCache]: Analyzing trace with hash 729515312, now seen corresponding path program 210 times [2022-01-17 23:27:49,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:49,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261902372] [2022-01-17 23:27:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:49,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:50,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:50,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261902372] [2022-01-17 23:27:50,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261902372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:50,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:50,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:27:50,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932644780] [2022-01-17 23:27:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:50,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:27:50,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:27:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:27:50,286 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:51,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:51,733 INFO L93 Difference]: Finished difference Result 11561 states and 30935 transitions. [2022-01-17 23:27:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:27:51,733 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:51,748 INFO L225 Difference]: With dead ends: 11561 [2022-01-17 23:27:51,749 INFO L226 Difference]: Without dead ends: 11561 [2022-01-17 23:27:51,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=382, Invalid=950, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:27:51,749 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1184 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:51,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 2952 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11561 states. [2022-01-17 23:27:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11561 to 6218. [2022-01-17 23:27:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:51,842 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:51,842 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:51,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:51,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:51,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:51,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-17 23:27:51,849 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash -894434196, now seen corresponding path program 211 times [2022-01-17 23:27:51,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:51,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137239744] [2022-01-17 23:27:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:51,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:52,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:52,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137239744] [2022-01-17 23:27:52,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137239744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:52,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:52,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:52,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285814745] [2022-01-17 23:27:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:52,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:52,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:52,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:52,157 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:53,275 INFO L93 Difference]: Finished difference Result 12369 states and 32798 transitions. [2022-01-17 23:27:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:53,292 INFO L225 Difference]: With dead ends: 12369 [2022-01-17 23:27:53,292 INFO L226 Difference]: Without dead ends: 12369 [2022-01-17 23:27:53,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:53,293 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1144 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:53,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 3076 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:53,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2022-01-17 23:27:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 6202. [2022-01-17 23:27:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-17 23:27:53,396 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-17 23:27:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:53,396 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-17 23:27:53,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-17 23:27:53,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:53,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:53,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:53,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-17 23:27:53,403 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1983445320, now seen corresponding path program 212 times [2022-01-17 23:27:53,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:53,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348512565] [2022-01-17 23:27:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:53,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:53,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:53,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348512565] [2022-01-17 23:27:53,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348512565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:53,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:53,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:27:53,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527554004] [2022-01-17 23:27:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:53,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:27:53,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:27:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:27:53,775 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:55,234 INFO L93 Difference]: Finished difference Result 15576 states and 41184 transitions. [2022-01-17 23:27:55,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:27:55,234 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:55,255 INFO L225 Difference]: With dead ends: 15576 [2022-01-17 23:27:55,256 INFO L226 Difference]: Without dead ends: 15576 [2022-01-17 23:27:55,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:27:55,256 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1400 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:55,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1400 Valid, 4275 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:27:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15576 states. [2022-01-17 23:27:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15576 to 6218. [2022-01-17 23:27:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-17 23:27:55,385 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-17 23:27:55,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:55,385 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-17 23:27:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-17 23:27:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:55,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:55,391 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] [2022-01-17 23:27:55,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-17 23:27:55,391 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:55,392 INFO L85 PathProgramCache]: Analyzing trace with hash -612882802, now seen corresponding path program 213 times [2022-01-17 23:27:55,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:55,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191036849] [2022-01-17 23:27:55,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:55,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:55,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:55,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191036849] [2022-01-17 23:27:55,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191036849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:55,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:55,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:55,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890148621] [2022-01-17 23:27:55,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:55,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:55,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:55,683 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:56,739 INFO L93 Difference]: Finished difference Result 12529 states and 33252 transitions. [2022-01-17 23:27:56,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:56,739 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:56,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:56,755 INFO L225 Difference]: With dead ends: 12529 [2022-01-17 23:27:56,755 INFO L226 Difference]: Without dead ends: 12529 [2022-01-17 23:27:56,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:56,756 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1281 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:56,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1281 Valid, 2729 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:27:56,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12529 states. [2022-01-17 23:27:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12529 to 6154. [2022-01-17 23:27:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:27:56,852 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:27:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:56,853 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:27:56,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:27:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:56,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:56,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:56,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-17 23:27:56,859 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:56,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:56,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2033224424, now seen corresponding path program 214 times [2022-01-17 23:27:56,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:56,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523494699] [2022-01-17 23:27:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:56,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:57,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:57,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523494699] [2022-01-17 23:27:57,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523494699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:57,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:57,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:57,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585933237] [2022-01-17 23:27:57,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:57,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:57,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:57,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:57,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:57,161 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:58,279 INFO L93 Difference]: Finished difference Result 11826 states and 31514 transitions. [2022-01-17 23:27:58,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:58,293 INFO L225 Difference]: With dead ends: 11826 [2022-01-17 23:27:58,293 INFO L226 Difference]: Without dead ends: 11826 [2022-01-17 23:27:58,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:58,293 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1063 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:58,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 3058 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:58,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11826 states. [2022-01-17 23:27:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11826 to 6202. [2022-01-17 23:27:58,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-17 23:27:58,385 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-17 23:27:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:58,386 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-17 23:27:58,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:58,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-17 23:27:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:58,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:58,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:58,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-17 23:27:58,392 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash -563103698, now seen corresponding path program 215 times [2022-01-17 23:27:58,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:58,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791191310] [2022-01-17 23:27:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:58,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:27:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:27:58,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:27:58,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791191310] [2022-01-17 23:27:58,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791191310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:27:58,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:27:58,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:27:58,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795665492] [2022-01-17 23:27:58,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:27:58,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:27:58,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:27:58,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:27:58,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:27:58,695 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:27:59,760 INFO L93 Difference]: Finished difference Result 11730 states and 31232 transitions. [2022-01-17 23:27:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:27:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:27:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:27:59,775 INFO L225 Difference]: With dead ends: 11730 [2022-01-17 23:27:59,775 INFO L226 Difference]: Without dead ends: 11730 [2022-01-17 23:27:59,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:27:59,776 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1010 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:27:59,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2802 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:27:59,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2022-01-17 23:27:59,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 6186. [2022-01-17 23:27:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-17 23:27:59,869 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-17 23:27:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:27:59,869 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-17 23:27:59,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:27:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-17 23:27:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:27:59,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:27:59,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:27:59,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-17 23:27:59,876 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:27:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:27:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash 684459434, now seen corresponding path program 216 times [2022-01-17 23:27:59,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:27:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364137030] [2022-01-17 23:27:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:27:59,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:27:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:00,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:00,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364137030] [2022-01-17 23:28:00,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364137030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:00,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:00,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:00,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505135981] [2022-01-17 23:28:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:00,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:00,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:00,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:00,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:00,240 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:01,852 INFO L93 Difference]: Finished difference Result 12018 states and 32078 transitions. [2022-01-17 23:28:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:28:01,852 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:01,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:01,868 INFO L225 Difference]: With dead ends: 12018 [2022-01-17 23:28:01,868 INFO L226 Difference]: Without dead ends: 12018 [2022-01-17 23:28:01,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=382, Invalid=950, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:28:01,868 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1113 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:01,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 2716 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2022-01-17 23:28:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 6154. [2022-01-17 23:28:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:01,970 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:01,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:01,970 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:01,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:01,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:01,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-17 23:28:01,977 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash -490457686, now seen corresponding path program 217 times [2022-01-17 23:28:01,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:01,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083692270] [2022-01-17 23:28:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:01,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:02,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:02,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083692270] [2022-01-17 23:28:02,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083692270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:02,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:02,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:02,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448895646] [2022-01-17 23:28:02,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:02,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:02,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:02,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:02,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:02,290 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:03,384 INFO L93 Difference]: Finished difference Result 8905 states and 23876 transitions. [2022-01-17 23:28:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:03,395 INFO L225 Difference]: With dead ends: 8905 [2022-01-17 23:28:03,395 INFO L226 Difference]: Without dead ends: 8905 [2022-01-17 23:28:03,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:03,395 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 930 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:03,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 3026 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:03,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2022-01-17 23:28:03,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 6026. [2022-01-17 23:28:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-17 23:28:03,469 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-17 23:28:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:03,469 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-17 23:28:03,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-17 23:28:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:03,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:03,474 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] [2022-01-17 23:28:03,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-17 23:28:03,474 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:03,475 INFO L85 PathProgramCache]: Analyzing trace with hash -698470550, now seen corresponding path program 218 times [2022-01-17 23:28:03,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:03,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830201117] [2022-01-17 23:28:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:03,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:03,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:03,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830201117] [2022-01-17 23:28:03,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830201117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:03,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:03,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:03,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127089805] [2022-01-17 23:28:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:03,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:03,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:03,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:03,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:03,792 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:05,384 INFO L93 Difference]: Finished difference Result 16151 states and 42955 transitions. [2022-01-17 23:28:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:05,409 INFO L225 Difference]: With dead ends: 16151 [2022-01-17 23:28:05,409 INFO L226 Difference]: Without dead ends: 16151 [2022-01-17 23:28:05,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:28:05,410 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1381 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:05,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 2773 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:05,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2022-01-17 23:28:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 6170. [2022-01-17 23:28:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:28:05,556 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:28:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:05,556 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:28:05,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:28:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:05,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:05,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:05,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-17 23:28:05,565 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1000168624, now seen corresponding path program 219 times [2022-01-17 23:28:05,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:05,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951142104] [2022-01-17 23:28:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:05,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:06,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:06,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951142104] [2022-01-17 23:28:06,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951142104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:06,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:06,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:28:06,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252268833] [2022-01-17 23:28:06,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:06,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:28:06,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:28:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:28:06,016 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:07,587 INFO L93 Difference]: Finished difference Result 16055 states and 42673 transitions. [2022-01-17 23:28:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:07,587 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:07,608 INFO L225 Difference]: With dead ends: 16055 [2022-01-17 23:28:07,608 INFO L226 Difference]: Without dead ends: 16055 [2022-01-17 23:28:07,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:28:07,609 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1172 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:07,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 4374 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16055 states. [2022-01-17 23:28:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16055 to 6154. [2022-01-17 23:28:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:07,721 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:07,721 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:07,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:07,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:07,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:07,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-17 23:28:07,727 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235540, now seen corresponding path program 220 times [2022-01-17 23:28:07,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:07,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316678551] [2022-01-17 23:28:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:07,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:08,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:08,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:08,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316678551] [2022-01-17 23:28:08,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316678551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:08,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:08,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:08,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686022308] [2022-01-17 23:28:08,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:08,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:08,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:08,046 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:09,499 INFO L93 Difference]: Finished difference Result 13678 states and 36409 transitions. [2022-01-17 23:28:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:28:09,500 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:09,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:09,518 INFO L225 Difference]: With dead ends: 13678 [2022-01-17 23:28:09,518 INFO L226 Difference]: Without dead ends: 13678 [2022-01-17 23:28:09,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:28:09,519 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1251 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:09,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2787 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:09,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13678 states. [2022-01-17 23:28:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13678 to 6122. [2022-01-17 23:28:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:28:09,619 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:28:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:09,619 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:28:09,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:28:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:09,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:09,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:09,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-17 23:28:09,625 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:09,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash 938351376, now seen corresponding path program 221 times [2022-01-17 23:28:09,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:09,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626633411] [2022-01-17 23:28:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:09,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:09,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:09,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626633411] [2022-01-17 23:28:09,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626633411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:09,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:09,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:09,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881956914] [2022-01-17 23:28:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:09,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:09,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:09,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:09,923 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:11,041 INFO L93 Difference]: Finished difference Result 16334 states and 43500 transitions. [2022-01-17 23:28:11,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:11,041 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:11,062 INFO L225 Difference]: With dead ends: 16334 [2022-01-17 23:28:11,063 INFO L226 Difference]: Without dead ends: 16334 [2022-01-17 23:28:11,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:11,063 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1252 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:11,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 2866 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16334 states. [2022-01-17 23:28:11,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16334 to 6154. [2022-01-17 23:28:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:11,182 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:11,183 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:11,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:11,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:11,189 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, 1] [2022-01-17 23:28:11,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-17 23:28:11,189 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash -685598132, now seen corresponding path program 222 times [2022-01-17 23:28:11,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:11,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816696605] [2022-01-17 23:28:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:11,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:11,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:11,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816696605] [2022-01-17 23:28:11,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816696605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:11,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:11,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:11,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518445471] [2022-01-17 23:28:11,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:11,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:11,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:11,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:11,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:11,530 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:13,254 INFO L93 Difference]: Finished difference Result 17142 states and 45363 transitions. [2022-01-17 23:28:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:28:13,254 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:13,277 INFO L225 Difference]: With dead ends: 17142 [2022-01-17 23:28:13,278 INFO L226 Difference]: Without dead ends: 17142 [2022-01-17 23:28:13,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:28:13,278 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1340 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:13,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 3133 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17142 states. [2022-01-17 23:28:13,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17142 to 6138. [2022-01-17 23:28:13,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:28:13,406 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:28:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:13,406 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:28:13,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:28:13,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:13,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:13,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:13,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-17 23:28:13,413 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:13,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:13,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2102685912, now seen corresponding path program 223 times [2022-01-17 23:28:13,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:13,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551488795] [2022-01-17 23:28:13,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:13,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:13,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:13,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551488795] [2022-01-17 23:28:13,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551488795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:13,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:13,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469959280] [2022-01-17 23:28:13,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:13,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:13,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:13,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:13,737 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:15,488 INFO L93 Difference]: Finished difference Result 18684 states and 49146 transitions. [2022-01-17 23:28:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:28:15,488 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:15,513 INFO L225 Difference]: With dead ends: 18684 [2022-01-17 23:28:15,514 INFO L226 Difference]: Without dead ends: 18684 [2022-01-17 23:28:15,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:28:15,514 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 1338 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:15,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2860 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2022-01-17 23:28:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 6154. [2022-01-17 23:28:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:15,645 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:15,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:15,646 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:15,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:15,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:15,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:15,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:15,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-17 23:28:15,653 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:15,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash -404046738, now seen corresponding path program 224 times [2022-01-17 23:28:15,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:15,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968619940] [2022-01-17 23:28:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:15,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:15,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:15,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968619940] [2022-01-17 23:28:15,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968619940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:15,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:15,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:15,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563943348] [2022-01-17 23:28:15,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:15,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:15,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:15,981 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:17,690 INFO L93 Difference]: Finished difference Result 15637 states and 41214 transitions. [2022-01-17 23:28:17,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:28:17,690 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:17,709 INFO L225 Difference]: With dead ends: 15637 [2022-01-17 23:28:17,710 INFO L226 Difference]: Without dead ends: 15637 [2022-01-17 23:28:17,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:28:17,710 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1177 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:17,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2893 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:17,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15637 states. [2022-01-17 23:28:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15637 to 6090. [2022-01-17 23:28:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:28:17,815 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:28:17,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:17,816 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:28:17,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:28:17,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:17,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:17,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:17,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-17 23:28:17,822 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:17,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1154733046, now seen corresponding path program 225 times [2022-01-17 23:28:17,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:17,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493905102] [2022-01-17 23:28:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:17,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:18,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:18,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493905102] [2022-01-17 23:28:18,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493905102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:18,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:18,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:18,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978748325] [2022-01-17 23:28:18,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:18,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:18,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:18,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:18,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:18,142 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:19,245 INFO L93 Difference]: Finished difference Result 11987 states and 32145 transitions. [2022-01-17 23:28:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:19,261 INFO L225 Difference]: With dead ends: 11987 [2022-01-17 23:28:19,261 INFO L226 Difference]: Without dead ends: 11987 [2022-01-17 23:28:19,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:19,262 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1138 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:19,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2675 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11987 states. [2022-01-17 23:28:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11987 to 6154. [2022-01-17 23:28:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:19,362 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:19,362 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:19,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:19,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:19,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:19,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-17 23:28:19,368 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash 705103034, now seen corresponding path program 226 times [2022-01-17 23:28:19,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:19,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367825758] [2022-01-17 23:28:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:19,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:19,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:19,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367825758] [2022-01-17 23:28:19,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367825758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:19,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:19,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:19,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245500682] [2022-01-17 23:28:19,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:19,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:19,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:19,694 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:21,246 INFO L93 Difference]: Finished difference Result 14689 states and 39263 transitions. [2022-01-17 23:28:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:28:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:21,266 INFO L225 Difference]: With dead ends: 14689 [2022-01-17 23:28:21,266 INFO L226 Difference]: Without dead ends: 14689 [2022-01-17 23:28:21,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:28:21,267 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1263 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:21,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 3044 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:21,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14689 states. [2022-01-17 23:28:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14689 to 6170. [2022-01-17 23:28:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:28:21,380 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:28:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:21,380 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:28:21,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:28:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:21,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:21,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:21,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-17 23:28:21,387 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash -918846474, now seen corresponding path program 227 times [2022-01-17 23:28:21,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:21,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798340500] [2022-01-17 23:28:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:21,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:21,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:21,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798340500] [2022-01-17 23:28:21,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798340500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:21,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:21,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:21,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201601469] [2022-01-17 23:28:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:21,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:21,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:21,691 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:22,830 INFO L93 Difference]: Finished difference Result 12864 states and 34190 transitions. [2022-01-17 23:28:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:22,846 INFO L225 Difference]: With dead ends: 12864 [2022-01-17 23:28:22,846 INFO L226 Difference]: Without dead ends: 12864 [2022-01-17 23:28:22,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:22,846 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1221 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:22,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 3044 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:22,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12864 states. [2022-01-17 23:28:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12864 to 6122. [2022-01-17 23:28:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:28:22,956 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:28:22,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:22,956 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:28:22,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:22,956 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:28:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:22,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:22,961 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] [2022-01-17 23:28:22,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-17 23:28:22,962 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1635758528, now seen corresponding path program 228 times [2022-01-17 23:28:22,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285347778] [2022-01-17 23:28:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:22,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:23,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:23,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285347778] [2022-01-17 23:28:23,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285347778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:23,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:23,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:23,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278902696] [2022-01-17 23:28:23,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:23,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:23,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:23,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:23,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:23,288 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:24,881 INFO L93 Difference]: Finished difference Result 14141 states and 37394 transitions. [2022-01-17 23:28:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:24,900 INFO L225 Difference]: With dead ends: 14141 [2022-01-17 23:28:24,901 INFO L226 Difference]: Without dead ends: 14141 [2022-01-17 23:28:24,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:28:24,901 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1243 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:24,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 2869 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2022-01-17 23:28:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 6154. [2022-01-17 23:28:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:25,017 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:25,017 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:25,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:25,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:25,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:25,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:25,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-17 23:28:25,024 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:25,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:25,024 INFO L85 PathProgramCache]: Analyzing trace with hash 11809020, now seen corresponding path program 229 times [2022-01-17 23:28:25,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:25,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791484217] [2022-01-17 23:28:25,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:25,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:25,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:25,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791484217] [2022-01-17 23:28:25,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791484217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:25,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:25,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:25,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001936064] [2022-01-17 23:28:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:25,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:25,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:25,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:25,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:25,358 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:27,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:27,100 INFO L93 Difference]: Finished difference Result 14949 states and 39257 transitions. [2022-01-17 23:28:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:28:27,100 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:27,124 INFO L225 Difference]: With dead ends: 14949 [2022-01-17 23:28:27,124 INFO L226 Difference]: Without dead ends: 14949 [2022-01-17 23:28:27,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:28:27,125 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 1211 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:27,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 3197 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14949 states. [2022-01-17 23:28:27,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14949 to 6138. [2022-01-17 23:28:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:28:27,249 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:28:27,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:27,249 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:28:27,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:28:27,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:27,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:27,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:27,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-17 23:28:27,256 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:27,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:27,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1405278760, now seen corresponding path program 230 times [2022-01-17 23:28:27,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:27,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923278744] [2022-01-17 23:28:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:27,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:27,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:27,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923278744] [2022-01-17 23:28:27,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923278744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:27,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:27,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:27,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447459358] [2022-01-17 23:28:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:27,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:27,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:27,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:27,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:27,556 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:28,730 INFO L93 Difference]: Finished difference Result 14294 states and 37644 transitions. [2022-01-17 23:28:28,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:28,730 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:28,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:28,746 INFO L225 Difference]: With dead ends: 14294 [2022-01-17 23:28:28,746 INFO L226 Difference]: Without dead ends: 14294 [2022-01-17 23:28:28,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:28,747 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1132 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:28,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 3147 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14294 states. [2022-01-17 23:28:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14294 to 6154. [2022-01-17 23:28:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:28,842 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:28,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:28,843 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:28,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:28,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:28,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:28,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-17 23:28:28,849 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash 293360414, now seen corresponding path program 231 times [2022-01-17 23:28:28,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:28,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659556690] [2022-01-17 23:28:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:28,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:29,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:29,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:29,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659556690] [2022-01-17 23:28:29,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659556690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:29,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:29,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:29,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417937783] [2022-01-17 23:28:29,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:29,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:29,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:29,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:29,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:29,149 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:30,244 INFO L93 Difference]: Finished difference Result 11247 states and 29712 transitions. [2022-01-17 23:28:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:30,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:30,259 INFO L225 Difference]: With dead ends: 11247 [2022-01-17 23:28:30,259 INFO L226 Difference]: Without dead ends: 11247 [2022-01-17 23:28:30,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:30,260 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1152 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:30,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 2808 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:30,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-01-17 23:28:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5994. [2022-01-17 23:28:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.723464619492657) internal successors, (16319), 5993 states have internal predecessors, (16319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16319 transitions. [2022-01-17 23:28:30,349 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16319 transitions. Word has length 130 [2022-01-17 23:28:30,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:30,349 INFO L470 AbstractCegarLoop]: Abstraction has 5994 states and 16319 transitions. [2022-01-17 23:28:30,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16319 transitions. [2022-01-17 23:28:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:30,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:30,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:30,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-17 23:28:30,355 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 855661900, now seen corresponding path program 232 times [2022-01-17 23:28:30,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805382547] [2022-01-17 23:28:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:30,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:30,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:30,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805382547] [2022-01-17 23:28:30,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805382547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:30,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:30,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:30,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88013727] [2022-01-17 23:28:30,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:30,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:30,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:30,653 INFO L87 Difference]: Start difference. First operand 5994 states and 16319 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:31,797 INFO L93 Difference]: Finished difference Result 16790 states and 44770 transitions. [2022-01-17 23:28:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:31,821 INFO L225 Difference]: With dead ends: 16790 [2022-01-17 23:28:31,821 INFO L226 Difference]: Without dead ends: 16790 [2022-01-17 23:28:31,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:31,821 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1405 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:31,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1405 Valid, 2780 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:31,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16790 states. [2022-01-17 23:28:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16790 to 6170. [2022-01-17 23:28:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:28:31,950 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:28:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:31,950 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:28:31,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:28:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:31,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:31,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:31,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-17 23:28:31,957 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1740666222, now seen corresponding path program 233 times [2022-01-17 23:28:31,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:31,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144721524] [2022-01-17 23:28:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:31,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:32,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:32,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144721524] [2022-01-17 23:28:32,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144721524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:32,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:32,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:32,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400444693] [2022-01-17 23:28:32,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:32,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:32,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:32,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:32,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:32,254 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:33,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:33,402 INFO L93 Difference]: Finished difference Result 16694 states and 44488 transitions. [2022-01-17 23:28:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:33,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:33,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:33,424 INFO L225 Difference]: With dead ends: 16694 [2022-01-17 23:28:33,425 INFO L226 Difference]: Without dead ends: 16694 [2022-01-17 23:28:33,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:33,425 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1350 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:33,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1350 Valid, 2804 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16694 states. [2022-01-17 23:28:33,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16694 to 6154. [2022-01-17 23:28:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:33,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:33,587 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:33,587 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:33,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:33,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:33,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:33,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:33,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-17 23:28:33,594 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:33,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash -493103090, now seen corresponding path program 234 times [2022-01-17 23:28:33,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:33,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066055778] [2022-01-17 23:28:33,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:33,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:33,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:33,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066055778] [2022-01-17 23:28:33,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066055778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:33,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:33,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235560002] [2022-01-17 23:28:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:33,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:33,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:33,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:33,895 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:35,016 INFO L93 Difference]: Finished difference Result 14317 states and 38224 transitions. [2022-01-17 23:28:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:35,016 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:35,035 INFO L225 Difference]: With dead ends: 14317 [2022-01-17 23:28:35,035 INFO L226 Difference]: Without dead ends: 14317 [2022-01-17 23:28:35,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:35,035 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1214 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:35,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 3114 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:35,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14317 states. [2022-01-17 23:28:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14317 to 6122. [2022-01-17 23:28:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:28:35,141 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:28:35,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:35,141 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:28:35,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:28:35,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:35,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:35,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:35,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-17 23:28:35,147 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1802483470, now seen corresponding path program 235 times [2022-01-17 23:28:35,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:35,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115241231] [2022-01-17 23:28:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:35,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:35,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:35,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115241231] [2022-01-17 23:28:35,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115241231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:35,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:35,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:28:35,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732389237] [2022-01-17 23:28:35,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:35,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:28:35,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:35,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:28:35,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:28:35,529 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:37,004 INFO L93 Difference]: Finished difference Result 16973 states and 45315 transitions. [2022-01-17 23:28:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:37,028 INFO L225 Difference]: With dead ends: 16973 [2022-01-17 23:28:37,028 INFO L226 Difference]: Without dead ends: 16973 [2022-01-17 23:28:37,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:28:37,028 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1167 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:37,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 4621 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2022-01-17 23:28:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 6154. [2022-01-17 23:28:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:37,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:37,153 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:37,153 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:37,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:37,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:37,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:37,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:37,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-17 23:28:37,159 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash 868534318, now seen corresponding path program 236 times [2022-01-17 23:28:37,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:37,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758470150] [2022-01-17 23:28:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:37,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:37,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:37,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758470150] [2022-01-17 23:28:37,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758470150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:37,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:37,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:28:37,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387093091] [2022-01-17 23:28:37,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:37,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:28:37,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:37,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:28:37,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:28:37,533 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:39,028 INFO L93 Difference]: Finished difference Result 17781 states and 47178 transitions. [2022-01-17 23:28:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:39,028 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:39,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:39,055 INFO L225 Difference]: With dead ends: 17781 [2022-01-17 23:28:39,055 INFO L226 Difference]: Without dead ends: 17781 [2022-01-17 23:28:39,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:28:39,055 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1202 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:39,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 4739 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2022-01-17 23:28:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 6138. [2022-01-17 23:28:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:28:39,216 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:28:39,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:39,216 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:28:39,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:28:39,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:39,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:39,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:39,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-17 23:28:39,223 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash -548553462, now seen corresponding path program 237 times [2022-01-17 23:28:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:39,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717175896] [2022-01-17 23:28:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:39,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:39,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:39,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:39,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717175896] [2022-01-17 23:28:39,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717175896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:39,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:39,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:39,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45185390] [2022-01-17 23:28:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:39,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:39,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:39,528 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:40,708 INFO L93 Difference]: Finished difference Result 19323 states and 50961 transitions. [2022-01-17 23:28:40,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:40,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:40,736 INFO L225 Difference]: With dead ends: 19323 [2022-01-17 23:28:40,736 INFO L226 Difference]: Without dead ends: 19323 [2022-01-17 23:28:40,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:40,736 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 1187 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:40,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 3313 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19323 states. [2022-01-17 23:28:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19323 to 6154. [2022-01-17 23:28:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:40,874 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:40,874 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:40,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:40,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:40,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:40,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-17 23:28:40,880 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1150085712, now seen corresponding path program 238 times [2022-01-17 23:28:40,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:40,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933827724] [2022-01-17 23:28:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:40,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:41,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:41,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933827724] [2022-01-17 23:28:41,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933827724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:41,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:41,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:41,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231989602] [2022-01-17 23:28:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:41,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:41,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:41,177 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:42,318 INFO L93 Difference]: Finished difference Result 16276 states and 43029 transitions. [2022-01-17 23:28:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:42,340 INFO L225 Difference]: With dead ends: 16276 [2022-01-17 23:28:42,340 INFO L226 Difference]: Without dead ends: 16276 [2022-01-17 23:28:42,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:42,340 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1109 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:42,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 3245 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2022-01-17 23:28:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 6090. [2022-01-17 23:28:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:42,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:28:42,453 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:28:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:42,453 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:28:42,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:42,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:28:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:42,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:42,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:42,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-17 23:28:42,459 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:42,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:42,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1586101800, now seen corresponding path program 239 times [2022-01-17 23:28:42,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:42,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644053156] [2022-01-17 23:28:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:42,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:42,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:42,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644053156] [2022-01-17 23:28:42,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644053156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:42,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:42,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:42,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460202275] [2022-01-17 23:28:42,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:42,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:42,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:42,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:42,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:42,806 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:44,380 INFO L93 Difference]: Finished difference Result 17559 states and 46995 transitions. [2022-01-17 23:28:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:44,381 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:44,439 INFO L225 Difference]: With dead ends: 17559 [2022-01-17 23:28:44,439 INFO L226 Difference]: Without dead ends: 17559 [2022-01-17 23:28:44,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:28:44,440 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 1144 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:44,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 3166 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2022-01-17 23:28:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 6154. [2022-01-17 23:28:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:44,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:44,538 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:44,538 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:44,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:44,538 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:44,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:44,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:44,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:44,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-17 23:28:44,545 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:44,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2035731812, now seen corresponding path program 240 times [2022-01-17 23:28:44,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:44,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882278265] [2022-01-17 23:28:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:44,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:44,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:44,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882278265] [2022-01-17 23:28:44,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882278265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:44,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:44,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:28:44,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311046863] [2022-01-17 23:28:44,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:44,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:28:44,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:44,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:28:44,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:28:44,924 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:46,426 INFO L93 Difference]: Finished difference Result 20261 states and 54113 transitions. [2022-01-17 23:28:46,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:46,427 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:46,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:46,454 INFO L225 Difference]: With dead ends: 20261 [2022-01-17 23:28:46,454 INFO L226 Difference]: Without dead ends: 20261 [2022-01-17 23:28:46,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:28:46,454 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 1230 mSDsluCounter, 4168 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:46,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 4545 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:46,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2022-01-17 23:28:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 6170. [2022-01-17 23:28:46,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:28:46,600 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:28:46,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:46,600 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:28:46,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:46,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:28:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:46,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:46,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:46,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-17 23:28:46,607 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:46,607 INFO L85 PathProgramCache]: Analyzing trace with hash 635285976, now seen corresponding path program 241 times [2022-01-17 23:28:46,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648406099] [2022-01-17 23:28:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:46,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:46,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:46,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648406099] [2022-01-17 23:28:46,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648406099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:46,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:46,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:46,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250662016] [2022-01-17 23:28:46,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:46,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:46,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:46,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:46,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:46,975 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:48,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:48,696 INFO L93 Difference]: Finished difference Result 18436 states and 49040 transitions. [2022-01-17 23:28:48,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:28:48,696 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:48,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:48,720 INFO L225 Difference]: With dead ends: 18436 [2022-01-17 23:28:48,720 INFO L226 Difference]: Without dead ends: 18436 [2022-01-17 23:28:48,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:28:48,721 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1211 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:48,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 3199 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18436 states. [2022-01-17 23:28:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18436 to 6122. [2022-01-17 23:28:48,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:28:48,847 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:28:48,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:48,847 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:28:48,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:28:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:48,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:48,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:48,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-17 23:28:48,853 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:48,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1105076318, now seen corresponding path program 242 times [2022-01-17 23:28:48,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:48,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201299185] [2022-01-17 23:28:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:48,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:49,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:49,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201299185] [2022-01-17 23:28:49,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201299185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:49,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:49,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:28:49,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080372994] [2022-01-17 23:28:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:49,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:28:49,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:49,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:28:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:28:49,178 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:50,985 INFO L93 Difference]: Finished difference Result 19713 states and 52244 transitions. [2022-01-17 23:28:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:28:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:51,011 INFO L225 Difference]: With dead ends: 19713 [2022-01-17 23:28:51,011 INFO L226 Difference]: Without dead ends: 19713 [2022-01-17 23:28:51,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:28:51,012 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 1280 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:51,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 3355 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:28:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19713 states. [2022-01-17 23:28:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19713 to 6154. [2022-01-17 23:28:51,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:51,157 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:51,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:51,157 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:51,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:51,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:51,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:51,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:51,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-17 23:28:51,164 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1565941470, now seen corresponding path program 243 times [2022-01-17 23:28:51,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:51,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658830989] [2022-01-17 23:28:51,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:51,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:51,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:51,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658830989] [2022-01-17 23:28:51,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658830989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:51,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:51,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:51,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218886795] [2022-01-17 23:28:51,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:51,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:51,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:51,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:51,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:51,466 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:52,615 INFO L93 Difference]: Finished difference Result 20521 states and 54107 transitions. [2022-01-17 23:28:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:52,643 INFO L225 Difference]: With dead ends: 20521 [2022-01-17 23:28:52,643 INFO L226 Difference]: Without dead ends: 20521 [2022-01-17 23:28:52,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:52,643 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1194 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:52,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 3008 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:52,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20521 states. [2022-01-17 23:28:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20521 to 6138. [2022-01-17 23:28:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:28:52,781 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:28:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:52,781 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:28:52,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:28:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:52,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:52,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:52,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-17 23:28:52,788 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash 148853690, now seen corresponding path program 244 times [2022-01-17 23:28:52,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:52,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020366024] [2022-01-17 23:28:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:52,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:53,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:53,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020366024] [2022-01-17 23:28:53,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020366024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:53,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:53,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:53,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003012251] [2022-01-17 23:28:53,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:53,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:53,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:53,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:53,093 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:54,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:54,288 INFO L93 Difference]: Finished difference Result 19866 states and 52494 transitions. [2022-01-17 23:28:54,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:54,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:54,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:54,316 INFO L225 Difference]: With dead ends: 19866 [2022-01-17 23:28:54,316 INFO L226 Difference]: Without dead ends: 19866 [2022-01-17 23:28:54,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:54,316 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1267 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:54,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 3336 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:54,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19866 states. [2022-01-17 23:28:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19866 to 6154. [2022-01-17 23:28:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:28:54,453 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:28:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:54,453 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:28:54,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:28:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:54,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:54,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:54,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-17 23:28:54,460 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:54,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:54,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1847492864, now seen corresponding path program 245 times [2022-01-17 23:28:54,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:54,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880903294] [2022-01-17 23:28:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:54,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:54,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:54,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880903294] [2022-01-17 23:28:54,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880903294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:54,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:54,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:54,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202946206] [2022-01-17 23:28:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:54,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:54,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:54,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:54,781 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:55,886 INFO L93 Difference]: Finished difference Result 16819 states and 44562 transitions. [2022-01-17 23:28:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:55,908 INFO L225 Difference]: With dead ends: 16819 [2022-01-17 23:28:55,908 INFO L226 Difference]: Without dead ends: 16819 [2022-01-17 23:28:55,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:55,908 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1185 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:55,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 2973 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16819 states. [2022-01-17 23:28:56,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16819 to 6026. [2022-01-17 23:28:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-17 23:28:56,019 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-17 23:28:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:56,019 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-17 23:28:56,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:56,019 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-17 23:28:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:56,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:56,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:56,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-17 23:28:56,025 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:56,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash 735353014, now seen corresponding path program 246 times [2022-01-17 23:28:56,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:56,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392456300] [2022-01-17 23:28:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:56,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:56,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:56,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392456300] [2022-01-17 23:28:56,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392456300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:56,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:56,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:28:56,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299755366] [2022-01-17 23:28:56,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:56,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:28:56,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:56,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:28:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:28:56,417 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:57,836 INFO L93 Difference]: Finished difference Result 12648 states and 34066 transitions. [2022-01-17 23:28:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:28:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:57,852 INFO L225 Difference]: With dead ends: 12648 [2022-01-17 23:28:57,853 INFO L226 Difference]: Without dead ends: 12648 [2022-01-17 23:28:57,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:28:57,853 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1110 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:57,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 4217 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:28:57,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2022-01-17 23:28:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 6058. [2022-01-17 23:28:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-17 23:28:57,948 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-17 23:28:57,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:57,948 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-17 23:28:57,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-17 23:28:57,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:57,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:57,954 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] [2022-01-17 23:28:57,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-17 23:28:57,954 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1626474118, now seen corresponding path program 247 times [2022-01-17 23:28:57,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:57,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17333482] [2022-01-17 23:28:57,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:57,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:58,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:58,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17333482] [2022-01-17 23:28:58,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17333482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:58,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:58,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:58,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947634678] [2022-01-17 23:28:58,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:58,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:58,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:58,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:58,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:58,264 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:28:59,437 INFO L93 Difference]: Finished difference Result 15776 states and 42394 transitions. [2022-01-17 23:28:59,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:28:59,438 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:28:59,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:28:59,459 INFO L225 Difference]: With dead ends: 15776 [2022-01-17 23:28:59,459 INFO L226 Difference]: Without dead ends: 15776 [2022-01-17 23:28:59,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:28:59,460 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1039 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:28:59,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3112 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:28:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-01-17 23:28:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 6090. [2022-01-17 23:28:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:59,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:28:59,580 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:28:59,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:28:59,580 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:28:59,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:28:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:28:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:28:59,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:28:59,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:28:59,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-17 23:28:59,587 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:28:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:28:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1653954938, now seen corresponding path program 248 times [2022-01-17 23:28:59,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:28:59,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565044801] [2022-01-17 23:28:59,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:28:59,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:28:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:28:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:28:59,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:28:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565044801] [2022-01-17 23:28:59,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565044801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:28:59,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:28:59,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:28:59,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821599598] [2022-01-17 23:28:59,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:28:59,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:28:59,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:28:59,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:28:59,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:28:59,897 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:01,059 INFO L93 Difference]: Finished difference Result 15488 states and 41548 transitions. [2022-01-17 23:29:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:01,081 INFO L225 Difference]: With dead ends: 15488 [2022-01-17 23:29:01,081 INFO L226 Difference]: Without dead ends: 15488 [2022-01-17 23:29:01,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:01,081 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1176 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:01,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 2770 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15488 states. [2022-01-17 23:29:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15488 to 6106. [2022-01-17 23:29:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:01,198 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:01,199 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:01,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:01,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:01,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:01,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-17 23:29:01,205 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:01,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:01,205 INFO L85 PathProgramCache]: Analyzing trace with hash 30005430, now seen corresponding path program 249 times [2022-01-17 23:29:01,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856615770] [2022-01-17 23:29:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:01,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:01,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:01,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856615770] [2022-01-17 23:29:01,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856615770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:01,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:01,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:01,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393283076] [2022-01-17 23:29:01,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:01,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:01,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:01,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:01,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:01,551 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:03,121 INFO L93 Difference]: Finished difference Result 13663 states and 36475 transitions. [2022-01-17 23:29:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:29:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:03,139 INFO L225 Difference]: With dead ends: 13663 [2022-01-17 23:29:03,139 INFO L226 Difference]: Without dead ends: 13663 [2022-01-17 23:29:03,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:29:03,140 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1253 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:03,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 2982 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:03,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-01-17 23:29:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 6042. [2022-01-17 23:29:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-17 23:29:03,241 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-17 23:29:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:03,241 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-17 23:29:03,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-17 23:29:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:03,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:03,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:03,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-17 23:29:03,248 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash -444241724, now seen corresponding path program 250 times [2022-01-17 23:29:03,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:03,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288523062] [2022-01-17 23:29:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:03,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:03,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:03,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:03,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288523062] [2022-01-17 23:29:03,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288523062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:03,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:03,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:03,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999049146] [2022-01-17 23:29:03,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:03,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:03,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:03,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:03,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:03,583 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:05,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:05,177 INFO L93 Difference]: Finished difference Result 15142 states and 40231 transitions. [2022-01-17 23:29:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:05,177 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:05,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:05,198 INFO L225 Difference]: With dead ends: 15142 [2022-01-17 23:29:05,198 INFO L226 Difference]: Without dead ends: 15142 [2022-01-17 23:29:05,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:29:05,199 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1086 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:05,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3224 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:05,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15142 states. [2022-01-17 23:29:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15142 to 6106. [2022-01-17 23:29:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:05,311 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:05,311 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:05,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:05,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:05,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:05,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:05,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-17 23:29:05,318 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:05,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1458779964, now seen corresponding path program 251 times [2022-01-17 23:29:05,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:05,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757219830] [2022-01-17 23:29:05,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:05,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:05,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:05,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757219830] [2022-01-17 23:29:05,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757219830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:05,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:05,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:05,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645444287] [2022-01-17 23:29:05,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:05,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:05,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:05,652 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:06,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:06,837 INFO L93 Difference]: Finished difference Result 17844 states and 47349 transitions. [2022-01-17 23:29:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:06,838 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:06,863 INFO L225 Difference]: With dead ends: 17844 [2022-01-17 23:29:06,864 INFO L226 Difference]: Without dead ends: 17844 [2022-01-17 23:29:06,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:06,864 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1112 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:06,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 2989 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:06,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17844 states. [2022-01-17 23:29:06,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17844 to 6122. [2022-01-17 23:29:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:07,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:29:07,006 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:29:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:07,007 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:29:07,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:07,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:29:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:07,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:07,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:07,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-17 23:29:07,013 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1212237824, now seen corresponding path program 252 times [2022-01-17 23:29:07,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:07,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106325002] [2022-01-17 23:29:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:07,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:07,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:07,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106325002] [2022-01-17 23:29:07,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106325002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:07,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:07,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:07,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451448499] [2022-01-17 23:29:07,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:07,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:07,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:07,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:07,353 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:09,005 INFO L93 Difference]: Finished difference Result 16019 states and 42276 transitions. [2022-01-17 23:29:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:09,005 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:09,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:09,026 INFO L225 Difference]: With dead ends: 16019 [2022-01-17 23:29:09,026 INFO L226 Difference]: Without dead ends: 16019 [2022-01-17 23:29:09,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:09,027 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1271 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:09,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 2848 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2022-01-17 23:29:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 6074. [2022-01-17 23:29:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:09,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-17 23:29:09,142 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-17 23:29:09,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:09,142 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-17 23:29:09,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-17 23:29:09,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:09,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:09,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:09,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-17 23:29:09,148 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1654665058, now seen corresponding path program 253 times [2022-01-17 23:29:09,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:09,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798378822] [2022-01-17 23:29:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:09,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:09,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:09,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798378822] [2022-01-17 23:29:09,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798378822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:09,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:09,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:09,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440487414] [2022-01-17 23:29:09,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:09,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:09,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:09,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:09,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:09,467 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:10,634 INFO L93 Difference]: Finished difference Result 14716 states and 39021 transitions. [2022-01-17 23:29:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:10,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:10,653 INFO L225 Difference]: With dead ends: 14716 [2022-01-17 23:29:10,654 INFO L226 Difference]: Without dead ends: 14716 [2022-01-17 23:29:10,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:10,654 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1060 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:10,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 3243 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14716 states. [2022-01-17 23:29:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14716 to 6106. [2022-01-17 23:29:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:10,767 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:10,768 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:10,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:10,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:10,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:10,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-17 23:29:10,774 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:10,774 INFO L85 PathProgramCache]: Analyzing trace with hash 30715550, now seen corresponding path program 254 times [2022-01-17 23:29:10,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:10,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147539920] [2022-01-17 23:29:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:10,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:11,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:11,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147539920] [2022-01-17 23:29:11,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147539920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:11,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:11,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:11,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360421006] [2022-01-17 23:29:11,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:11,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:11,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:11,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:11,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:11,127 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:12,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:12,811 INFO L93 Difference]: Finished difference Result 15524 states and 40884 transitions. [2022-01-17 23:29:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:12,832 INFO L225 Difference]: With dead ends: 15524 [2022-01-17 23:29:12,832 INFO L226 Difference]: Without dead ends: 15524 [2022-01-17 23:29:12,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:12,832 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1293 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:12,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 2843 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15524 states. [2022-01-17 23:29:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15524 to 6090. [2022-01-17 23:29:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:29:12,939 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:29:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:12,939 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:29:12,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:29:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:12,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:12,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:12,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-17 23:29:12,945 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:12,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1386372230, now seen corresponding path program 255 times [2022-01-17 23:29:12,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:12,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274209499] [2022-01-17 23:29:12,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:12,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:13,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:13,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274209499] [2022-01-17 23:29:13,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274209499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:13,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:13,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:13,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019552845] [2022-01-17 23:29:13,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:13,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:13,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:13,325 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:14,771 INFO L93 Difference]: Finished difference Result 14869 states and 39271 transitions. [2022-01-17 23:29:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:14,772 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:14,790 INFO L225 Difference]: With dead ends: 14869 [2022-01-17 23:29:14,791 INFO L226 Difference]: Without dead ends: 14869 [2022-01-17 23:29:14,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:14,791 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1198 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4358 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:14,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 4358 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:14,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14869 states. [2022-01-17 23:29:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14869 to 6106. [2022-01-17 23:29:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:14,890 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:14,890 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:14,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:14,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:14,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:14,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:14,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-17 23:29:14,896 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash 312266944, now seen corresponding path program 256 times [2022-01-17 23:29:14,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:14,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305308740] [2022-01-17 23:29:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:14,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:15,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305308740] [2022-01-17 23:29:15,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305308740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:15,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:15,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:15,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067222051] [2022-01-17 23:29:15,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:15,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:15,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:15,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:15,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:15,203 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:16,333 INFO L93 Difference]: Finished difference Result 11822 states and 31339 transitions. [2022-01-17 23:29:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:16,334 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:16,348 INFO L225 Difference]: With dead ends: 11822 [2022-01-17 23:29:16,348 INFO L226 Difference]: Without dead ends: 11822 [2022-01-17 23:29:16,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:16,349 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1027 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:16,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 3168 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2022-01-17 23:29:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 5978. [2022-01-17 23:29:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.7228915662650603) internal successors, (16272), 5977 states have internal predecessors, (16272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 16272 transitions. [2022-01-17 23:29:16,434 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 16272 transitions. Word has length 130 [2022-01-17 23:29:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:16,434 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 16272 transitions. [2022-01-17 23:29:16,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 16272 transitions. [2022-01-17 23:29:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:16,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:16,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:16,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-17 23:29:16,440 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1269509862, now seen corresponding path program 257 times [2022-01-17 23:29:16,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:16,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523640635] [2022-01-17 23:29:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:16,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:16,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:16,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523640635] [2022-01-17 23:29:16,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523640635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:16,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:16,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:16,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693433930] [2022-01-17 23:29:16,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:16,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:16,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:16,800 INFO L87 Difference]: Start difference. First operand 5978 states and 16272 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:18,484 INFO L93 Difference]: Finished difference Result 17216 states and 45980 transitions. [2022-01-17 23:29:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:18,507 INFO L225 Difference]: With dead ends: 17216 [2022-01-17 23:29:18,507 INFO L226 Difference]: Without dead ends: 17216 [2022-01-17 23:29:18,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:29:18,508 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1273 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:18,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1273 Valid, 3136 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17216 states. [2022-01-17 23:29:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17216 to 6186. [2022-01-17 23:29:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-17 23:29:18,627 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-17 23:29:18,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:18,627 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-17 23:29:18,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-17 23:29:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:18,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:18,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:18,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-17 23:29:18,634 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:18,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:18,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1326818260, now seen corresponding path program 258 times [2022-01-17 23:29:18,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:18,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918262016] [2022-01-17 23:29:18,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:18,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:19,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:19,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:19,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918262016] [2022-01-17 23:29:19,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918262016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:19,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:19,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:19,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657687271] [2022-01-17 23:29:19,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:19,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:19,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:19,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:19,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:19,013 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:20,423 INFO L93 Difference]: Finished difference Result 17120 states and 45698 transitions. [2022-01-17 23:29:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:20,423 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:20,446 INFO L225 Difference]: With dead ends: 17120 [2022-01-17 23:29:20,446 INFO L226 Difference]: Without dead ends: 17120 [2022-01-17 23:29:20,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:20,447 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1187 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:20,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 4370 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17120 states. [2022-01-17 23:29:20,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17120 to 6170. [2022-01-17 23:29:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:20,574 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:20,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:20,574 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:20,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:20,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:20,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:20,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-17 23:29:20,582 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -79255128, now seen corresponding path program 259 times [2022-01-17 23:29:20,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:20,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192831737] [2022-01-17 23:29:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:20,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:20,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:20,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192831737] [2022-01-17 23:29:20,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192831737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:20,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:20,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:20,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33224876] [2022-01-17 23:29:20,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:20,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:20,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:20,918 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:22,337 INFO L93 Difference]: Finished difference Result 14743 states and 39434 transitions. [2022-01-17 23:29:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:29:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:22,358 INFO L225 Difference]: With dead ends: 14743 [2022-01-17 23:29:22,358 INFO L226 Difference]: Without dead ends: 14743 [2022-01-17 23:29:22,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:29:22,358 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1091 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:22,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 2858 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14743 states. [2022-01-17 23:29:22,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14743 to 6138. [2022-01-17 23:29:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:22,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:29:22,470 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:29:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:22,470 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:29:22,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:29:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:22,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:22,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:22,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-17 23:29:22,476 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1388635508, now seen corresponding path program 260 times [2022-01-17 23:29:22,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:22,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675714558] [2022-01-17 23:29:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:22,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:22,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:22,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:22,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675714558] [2022-01-17 23:29:22,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675714558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:22,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:22,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:22,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982664677] [2022-01-17 23:29:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:22,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:22,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:22,871 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:24,368 INFO L93 Difference]: Finished difference Result 17399 states and 46525 transitions. [2022-01-17 23:29:24,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:24,368 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:24,393 INFO L225 Difference]: With dead ends: 17399 [2022-01-17 23:29:24,393 INFO L226 Difference]: Without dead ends: 17399 [2022-01-17 23:29:24,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:24,393 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1311 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4629 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:24,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4629 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17399 states. [2022-01-17 23:29:24,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17399 to 6170. [2022-01-17 23:29:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:24,518 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:24,518 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:24,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:24,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:24,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:24,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-17 23:29:24,525 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1282382280, now seen corresponding path program 261 times [2022-01-17 23:29:24,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:24,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895883862] [2022-01-17 23:29:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:24,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:24,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:24,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895883862] [2022-01-17 23:29:24,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895883862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:24,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:24,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:24,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934394065] [2022-01-17 23:29:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:24,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:24,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:24,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:24,850 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:26,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:26,544 INFO L93 Difference]: Finished difference Result 18207 states and 48388 transitions. [2022-01-17 23:29:26,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:26,545 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:26,568 INFO L225 Difference]: With dead ends: 18207 [2022-01-17 23:29:26,569 INFO L226 Difference]: Without dead ends: 18207 [2022-01-17 23:29:26,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:26,569 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1336 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:26,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 3232 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18207 states. [2022-01-17 23:29:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18207 to 6154. [2022-01-17 23:29:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:29:26,695 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:29:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:26,696 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:29:26,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:29:26,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:26,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:26,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:26,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-17 23:29:26,702 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:26,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash -134705500, now seen corresponding path program 262 times [2022-01-17 23:29:26,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:26,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273240342] [2022-01-17 23:29:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:26,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:27,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:27,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273240342] [2022-01-17 23:29:27,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273240342] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:27,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:27,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:27,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976513356] [2022-01-17 23:29:27,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:27,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:27,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:27,099 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:28,682 INFO L93 Difference]: Finished difference Result 19749 states and 52171 transitions. [2022-01-17 23:29:28,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:28,682 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:28,704 INFO L225 Difference]: With dead ends: 19749 [2022-01-17 23:29:28,704 INFO L226 Difference]: Without dead ends: 19749 [2022-01-17 23:29:28,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:28,704 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1205 mSDsluCounter, 4617 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:28,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 5001 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:28,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19749 states. [2022-01-17 23:29:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19749 to 6170. [2022-01-17 23:29:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:28,820 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:28,820 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:28,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:28,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:28,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:28,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-17 23:29:28,827 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:28,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:28,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1563933674, now seen corresponding path program 263 times [2022-01-17 23:29:28,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:28,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49192800] [2022-01-17 23:29:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:28,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:29,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:29,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49192800] [2022-01-17 23:29:29,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49192800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:29,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:29,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:29,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846976616] [2022-01-17 23:29:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:29,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:29,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:29,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:29,188 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:30,822 INFO L93 Difference]: Finished difference Result 16702 states and 44239 transitions. [2022-01-17 23:29:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:30,823 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:30,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:30,846 INFO L225 Difference]: With dead ends: 16702 [2022-01-17 23:29:30,846 INFO L226 Difference]: Without dead ends: 16702 [2022-01-17 23:29:30,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:30,846 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1341 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:30,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 3219 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:30,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16702 states. [2022-01-17 23:29:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16702 to 6106. [2022-01-17 23:29:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:30,962 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:30,962 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:30,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:30,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:30,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:30,968 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, 1] [2022-01-17 23:29:30,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-17 23:29:30,968 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:30,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1172253838, now seen corresponding path program 264 times [2022-01-17 23:29:30,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:30,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524248982] [2022-01-17 23:29:30,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:30,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:31,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:31,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524248982] [2022-01-17 23:29:31,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524248982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:31,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:31,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:31,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996861171] [2022-01-17 23:29:31,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:31,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:31,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:31,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:31,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:31,315 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:32,879 INFO L93 Difference]: Finished difference Result 17985 states and 48205 transitions. [2022-01-17 23:29:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:32,880 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:32,905 INFO L225 Difference]: With dead ends: 17985 [2022-01-17 23:29:32,905 INFO L226 Difference]: Without dead ends: 17985 [2022-01-17 23:29:32,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:29:32,906 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1321 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:32,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 2835 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:32,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17985 states. [2022-01-17 23:29:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17985 to 6170. [2022-01-17 23:29:33,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:33,032 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:33,032 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:33,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:33,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:33,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:33,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-17 23:29:33,039 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1621883850, now seen corresponding path program 265 times [2022-01-17 23:29:33,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:33,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987621947] [2022-01-17 23:29:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:33,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:33,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:33,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:33,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987621947] [2022-01-17 23:29:33,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987621947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:33,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:33,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:33,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558172387] [2022-01-17 23:29:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:33,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:33,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:33,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:33,351 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:34,513 INFO L93 Difference]: Finished difference Result 20687 states and 55323 transitions. [2022-01-17 23:29:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:34,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:34,541 INFO L225 Difference]: With dead ends: 20687 [2022-01-17 23:29:34,541 INFO L226 Difference]: Without dead ends: 20687 [2022-01-17 23:29:34,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:34,541 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1240 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:34,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 2991 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20687 states. [2022-01-17 23:29:34,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20687 to 6186. [2022-01-17 23:29:34,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-17 23:29:34,686 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-17 23:29:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:34,686 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-17 23:29:34,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-17 23:29:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:34,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:34,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:34,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-17 23:29:34,692 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1049133938, now seen corresponding path program 266 times [2022-01-17 23:29:34,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:34,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902709484] [2022-01-17 23:29:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:34,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:35,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:35,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902709484] [2022-01-17 23:29:35,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902709484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:35,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:35,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:35,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715321961] [2022-01-17 23:29:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:35,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:35,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:35,019 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:36,718 INFO L93 Difference]: Finished difference Result 18862 states and 50250 transitions. [2022-01-17 23:29:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:36,718 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:36,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:36,743 INFO L225 Difference]: With dead ends: 18862 [2022-01-17 23:29:36,743 INFO L226 Difference]: Without dead ends: 18862 [2022-01-17 23:29:36,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:36,743 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1305 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:36,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 3202 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18862 states. [2022-01-17 23:29:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18862 to 6138. [2022-01-17 23:29:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:29:36,870 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:29:36,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:36,870 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:29:36,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:29:36,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:36,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:36,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:36,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-17 23:29:36,876 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:36,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:36,876 INFO L85 PathProgramCache]: Analyzing trace with hash -691228356, now seen corresponding path program 267 times [2022-01-17 23:29:36,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:36,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771368683] [2022-01-17 23:29:36,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:36,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:37,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:37,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771368683] [2022-01-17 23:29:37,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771368683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:37,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:37,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:37,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514865597] [2022-01-17 23:29:37,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:37,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:37,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:37,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:37,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:37,214 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:38,966 INFO L93 Difference]: Finished difference Result 20139 states and 53454 transitions. [2022-01-17 23:29:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:29:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:38,994 INFO L225 Difference]: With dead ends: 20139 [2022-01-17 23:29:38,994 INFO L226 Difference]: Without dead ends: 20139 [2022-01-17 23:29:38,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:29:38,995 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 1257 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:38,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 3361 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20139 states. [2022-01-17 23:29:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20139 to 6170. [2022-01-17 23:29:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:39,133 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:39,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:39,133 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:39,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:39,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:39,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:39,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:39,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-17 23:29:39,140 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:39,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:39,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1979789432, now seen corresponding path program 268 times [2022-01-17 23:29:39,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:39,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625374852] [2022-01-17 23:29:39,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:39,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:39,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625374852] [2022-01-17 23:29:39,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625374852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:39,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:39,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:39,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472239705] [2022-01-17 23:29:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:39,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:39,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:39,478 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:40,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:40,690 INFO L93 Difference]: Finished difference Result 20947 states and 55317 transitions. [2022-01-17 23:29:40,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:40,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:40,719 INFO L225 Difference]: With dead ends: 20947 [2022-01-17 23:29:40,719 INFO L226 Difference]: Without dead ends: 20947 [2022-01-17 23:29:40,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:40,719 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1278 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:40,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 3431 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20947 states. [2022-01-17 23:29:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20947 to 6154. [2022-01-17 23:29:40,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:40,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-17 23:29:40,852 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-17 23:29:40,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:40,852 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-17 23:29:40,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:40,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-17 23:29:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:40,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:40,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:40,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-17 23:29:40,859 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:40,859 INFO L85 PathProgramCache]: Analyzing trace with hash 562701652, now seen corresponding path program 269 times [2022-01-17 23:29:40,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:40,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111848670] [2022-01-17 23:29:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:40,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:41,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:41,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111848670] [2022-01-17 23:29:41,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111848670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:41,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:41,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:41,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113760239] [2022-01-17 23:29:41,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:41,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:41,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:41,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:41,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:41,156 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:42,358 INFO L93 Difference]: Finished difference Result 20292 states and 53704 transitions. [2022-01-17 23:29:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:42,387 INFO L225 Difference]: With dead ends: 20292 [2022-01-17 23:29:42,388 INFO L226 Difference]: Without dead ends: 20292 [2022-01-17 23:29:42,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:42,388 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1259 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:42,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 3374 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20292 states. [2022-01-17 23:29:42,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20292 to 6170. [2022-01-17 23:29:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-17 23:29:42,535 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-17 23:29:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:42,535 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-17 23:29:42,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-17 23:29:42,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:42,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:42,542 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, 1] [2022-01-17 23:29:42,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-17 23:29:42,542 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:42,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:42,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2033626470, now seen corresponding path program 270 times [2022-01-17 23:29:42,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:42,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625619733] [2022-01-17 23:29:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:42,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:42,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:42,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625619733] [2022-01-17 23:29:42,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625619733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:42,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:42,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:42,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666179752] [2022-01-17 23:29:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:42,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:42,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:42,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:42,918 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:44,397 INFO L93 Difference]: Finished difference Result 17245 states and 45772 transitions. [2022-01-17 23:29:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:44,397 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:44,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:44,421 INFO L225 Difference]: With dead ends: 17245 [2022-01-17 23:29:44,421 INFO L226 Difference]: Without dead ends: 17245 [2022-01-17 23:29:44,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:44,421 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1102 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:44,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 4847 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17245 states. [2022-01-17 23:29:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17245 to 6042. [2022-01-17 23:29:44,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-17 23:29:44,567 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-17 23:29:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:44,567 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-17 23:29:44,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-17 23:29:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:44,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:44,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:44,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-17 23:29:44,572 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1149200976, now seen corresponding path program 271 times [2022-01-17 23:29:44,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:44,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175026668] [2022-01-17 23:29:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:44,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:44,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175026668] [2022-01-17 23:29:44,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175026668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:44,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:44,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:44,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521004999] [2022-01-17 23:29:44,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:44,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:44,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:44,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:44,910 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:46,432 INFO L93 Difference]: Finished difference Result 18614 states and 50032 transitions. [2022-01-17 23:29:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:46,433 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:46,458 INFO L225 Difference]: With dead ends: 18614 [2022-01-17 23:29:46,459 INFO L226 Difference]: Without dead ends: 18614 [2022-01-17 23:29:46,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:29:46,459 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1080 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:46,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 2905 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:46,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18614 states. [2022-01-17 23:29:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18614 to 6074. [2022-01-17 23:29:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-17 23:29:46,596 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-17 23:29:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:46,596 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-17 23:29:46,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-17 23:29:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:46,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:46,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:46,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-17 23:29:46,603 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:46,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1212626156, now seen corresponding path program 272 times [2022-01-17 23:29:46,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:46,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251454831] [2022-01-17 23:29:46,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:46,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:46,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:46,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251454831] [2022-01-17 23:29:46,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251454831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:46,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:46,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:46,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211622576] [2022-01-17 23:29:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:46,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:46,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:46,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:46,964 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:48,671 INFO L93 Difference]: Finished difference Result 21742 states and 58360 transitions. [2022-01-17 23:29:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:48,701 INFO L225 Difference]: With dead ends: 21742 [2022-01-17 23:29:48,701 INFO L226 Difference]: Without dead ends: 21742 [2022-01-17 23:29:48,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:48,702 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1313 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:48,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 3244 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21742 states. [2022-01-17 23:29:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21742 to 6106. [2022-01-17 23:29:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:29:48,842 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:29:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:48,842 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:29:48,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:29:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:48,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:48,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:48,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-17 23:29:48,848 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 2067802900, now seen corresponding path program 273 times [2022-01-17 23:29:48,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:48,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325762084] [2022-01-17 23:29:48,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:48,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:49,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:49,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325762084] [2022-01-17 23:29:49,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325762084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:49,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:49,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:49,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951973414] [2022-01-17 23:29:49,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:49,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:49,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:49,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:49,162 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:50,383 INFO L93 Difference]: Finished difference Result 21454 states and 57514 transitions. [2022-01-17 23:29:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:29:50,384 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:50,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:50,414 INFO L225 Difference]: With dead ends: 21454 [2022-01-17 23:29:50,414 INFO L226 Difference]: Without dead ends: 21454 [2022-01-17 23:29:50,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:29:50,414 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1192 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:50,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 3275 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:29:50,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21454 states. [2022-01-17 23:29:50,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21454 to 6122. [2022-01-17 23:29:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:29:50,562 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:29:50,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:50,562 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:29:50,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:29:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:50,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:50,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:50,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-17 23:29:50,569 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:50,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash 443853392, now seen corresponding path program 274 times [2022-01-17 23:29:50,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:50,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813070984] [2022-01-17 23:29:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:50,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:50,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:50,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813070984] [2022-01-17 23:29:50,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813070984] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:50,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:50,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:50,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802873095] [2022-01-17 23:29:50,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:50,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:50,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:50,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:50,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:50,918 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:52,595 INFO L93 Difference]: Finished difference Result 19629 states and 52441 transitions. [2022-01-17 23:29:52,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:29:52,596 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:52,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:52,621 INFO L225 Difference]: With dead ends: 19629 [2022-01-17 23:29:52,621 INFO L226 Difference]: Without dead ends: 19629 [2022-01-17 23:29:52,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:29:52,622 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1359 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:52,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 3192 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:52,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19629 states. [2022-01-17 23:29:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19629 to 6058. [2022-01-17 23:29:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-17 23:29:52,749 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-17 23:29:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:52,749 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-17 23:29:52,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-17 23:29:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:52,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:52,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:52,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-17 23:29:52,755 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:52,756 INFO L85 PathProgramCache]: Analyzing trace with hash -30393762, now seen corresponding path program 275 times [2022-01-17 23:29:52,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:52,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532564766] [2022-01-17 23:29:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:52,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:53,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:53,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532564766] [2022-01-17 23:29:53,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532564766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:53,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:53,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:29:53,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884938234] [2022-01-17 23:29:53,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:53,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:29:53,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:53,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:29:53,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:29:53,083 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:54,821 INFO L93 Difference]: Finished difference Result 21108 states and 56197 transitions. [2022-01-17 23:29:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:29:54,821 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:54,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:54,852 INFO L225 Difference]: With dead ends: 21108 [2022-01-17 23:29:54,852 INFO L226 Difference]: Without dead ends: 21108 [2022-01-17 23:29:54,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:29:54,853 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 1151 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:54,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 3434 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:29:54,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21108 states. [2022-01-17 23:29:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21108 to 6122. [2022-01-17 23:29:54,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:55,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:29:55,006 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:29:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:55,007 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:29:55,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:55,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:29:55,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:55,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:55,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:55,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-17 23:29:55,015 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:55,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:55,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1044932002, now seen corresponding path program 276 times [2022-01-17 23:29:55,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:55,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137061990] [2022-01-17 23:29:55,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:55,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:55,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:55,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137061990] [2022-01-17 23:29:55,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137061990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:55,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:55,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:55,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729456559] [2022-01-17 23:29:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:55,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:55,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:55,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:55,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:55,423 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:56,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:56,961 INFO L93 Difference]: Finished difference Result 23810 states and 63315 transitions. [2022-01-17 23:29:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:56,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:56,994 INFO L225 Difference]: With dead ends: 23810 [2022-01-17 23:29:56,995 INFO L226 Difference]: Without dead ends: 23810 [2022-01-17 23:29:56,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:56,995 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 1161 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 5197 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:56,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 5197 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:29:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2022-01-17 23:29:57,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 6138. [2022-01-17 23:29:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-17 23:29:57,154 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-17 23:29:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:57,154 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-17 23:29:57,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-17 23:29:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:57,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:57,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:57,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-17 23:29:57,160 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:57,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1626085786, now seen corresponding path program 277 times [2022-01-17 23:29:57,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:57,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520058412] [2022-01-17 23:29:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:57,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:57,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:57,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520058412] [2022-01-17 23:29:57,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520058412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:57,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:57,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:29:57,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195255331] [2022-01-17 23:29:57,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:57,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:29:57,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:29:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:29:57,553 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:29:59,073 INFO L93 Difference]: Finished difference Result 21985 states and 58242 transitions. [2022-01-17 23:29:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:29:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:29:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:29:59,103 INFO L225 Difference]: With dead ends: 21985 [2022-01-17 23:29:59,104 INFO L226 Difference]: Without dead ends: 21985 [2022-01-17 23:29:59,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:29:59,104 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 1180 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:29:59,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 4831 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:29:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21985 states. [2022-01-17 23:29:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21985 to 6090. [2022-01-17 23:29:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:29:59,254 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:29:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:29:59,255 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:29:59,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:29:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:29:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:29:59,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:29:59,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:29:59,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-17 23:29:59,260 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:29:59,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:29:59,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2068513020, now seen corresponding path program 278 times [2022-01-17 23:29:59,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:29:59,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736496360] [2022-01-17 23:29:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:29:59,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:29:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:29:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:29:59,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:29:59,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736496360] [2022-01-17 23:29:59,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736496360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:29:59,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:29:59,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:29:59,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288147338] [2022-01-17 23:29:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:29:59,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:29:59,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:29:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:29:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:29:59,564 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:00,731 INFO L93 Difference]: Finished difference Result 20682 states and 54987 transitions. [2022-01-17 23:30:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:00,731 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:00,759 INFO L225 Difference]: With dead ends: 20682 [2022-01-17 23:30:00,760 INFO L226 Difference]: Without dead ends: 20682 [2022-01-17 23:30:00,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:00,760 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1091 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:00,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 3158 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:00,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20682 states. [2022-01-17 23:30:00,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20682 to 6122. [2022-01-17 23:30:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:00,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:30:00,917 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:30:00,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:00,917 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:30:00,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:00,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:30:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:00,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:00,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:00,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-17 23:30:00,923 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:00,924 INFO L85 PathProgramCache]: Analyzing trace with hash 444563512, now seen corresponding path program 279 times [2022-01-17 23:30:00,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:00,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978897524] [2022-01-17 23:30:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:00,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:01,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:01,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978897524] [2022-01-17 23:30:01,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978897524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:01,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:01,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:01,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460803082] [2022-01-17 23:30:01,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:01,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:01,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:01,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:01,255 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:03,195 INFO L93 Difference]: Finished difference Result 21490 states and 56850 transitions. [2022-01-17 23:30:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:30:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:03,224 INFO L225 Difference]: With dead ends: 21490 [2022-01-17 23:30:03,224 INFO L226 Difference]: Without dead ends: 21490 [2022-01-17 23:30:03,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:03,224 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 1312 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:03,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 3405 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:03,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21490 states. [2022-01-17 23:30:03,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21490 to 6106. [2022-01-17 23:30:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:03,362 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:03,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:03,362 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:03,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:03,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:03,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:03,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-17 23:30:03,367 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:03,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -972524268, now seen corresponding path program 280 times [2022-01-17 23:30:03,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:03,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73643434] [2022-01-17 23:30:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:03,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:03,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:03,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:03,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73643434] [2022-01-17 23:30:03,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73643434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:03,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:03,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:03,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348883382] [2022-01-17 23:30:03,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:03,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:03,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:03,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:03,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:03,687 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:05,383 INFO L93 Difference]: Finished difference Result 20835 states and 55237 transitions. [2022-01-17 23:30:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-17 23:30:05,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:05,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:05,412 INFO L225 Difference]: With dead ends: 20835 [2022-01-17 23:30:05,412 INFO L226 Difference]: Without dead ends: 20835 [2022-01-17 23:30:05,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-17 23:30:05,412 INFO L933 BasicCegarLoop]: 484 mSDtfsCounter, 1206 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:05,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 3010 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20835 states. [2022-01-17 23:30:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20835 to 6122. [2022-01-17 23:30:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:30:05,553 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:30:05,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:05,553 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:30:05,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:30:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:05,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:05,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:05,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-17 23:30:05,560 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash 726114906, now seen corresponding path program 281 times [2022-01-17 23:30:05,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:05,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261300919] [2022-01-17 23:30:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:05,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:05,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:05,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261300919] [2022-01-17 23:30:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261300919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:05,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:05,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:30:05,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51778686] [2022-01-17 23:30:05,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:05,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:05,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:05,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:05,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:05,942 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:07,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:07,400 INFO L93 Difference]: Finished difference Result 17788 states and 47305 transitions. [2022-01-17 23:30:07,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:07,400 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:07,423 INFO L225 Difference]: With dead ends: 17788 [2022-01-17 23:30:07,423 INFO L226 Difference]: Without dead ends: 17788 [2022-01-17 23:30:07,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:07,424 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1158 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 4652 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:07,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 4652 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:07,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2022-01-17 23:30:07,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 6010. [2022-01-17 23:30:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.724034620505992) internal successors, (16366), 6009 states have internal predecessors, (16366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16366 transitions. [2022-01-17 23:30:07,544 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16366 transitions. Word has length 130 [2022-01-17 23:30:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:07,544 INFO L470 AbstractCegarLoop]: Abstraction has 6010 states and 16366 transitions. [2022-01-17 23:30:07,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16366 transitions. [2022-01-17 23:30:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:07,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:07,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:07,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-17 23:30:07,550 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:07,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1917551824, now seen corresponding path program 282 times [2022-01-17 23:30:07,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:07,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041781705] [2022-01-17 23:30:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:07,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:07,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:07,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041781705] [2022-01-17 23:30:07,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041781705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:07,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:07,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:30:07,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411377651] [2022-01-17 23:30:07,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:07,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:07,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:07,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:07,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:07,948 INFO L87 Difference]: Start difference. First operand 6010 states and 16366 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:09,467 INFO L93 Difference]: Finished difference Result 13085 states and 35329 transitions. [2022-01-17 23:30:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:09,468 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:09,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:09,487 INFO L225 Difference]: With dead ends: 13085 [2022-01-17 23:30:09,488 INFO L226 Difference]: Without dead ends: 13085 [2022-01-17 23:30:09,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:09,488 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1030 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:09,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3944 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2022-01-17 23:30:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 6042. [2022-01-17 23:30:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-17 23:30:09,616 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-17 23:30:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:09,616 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-17 23:30:09,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-17 23:30:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:09,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:09,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:09,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-17 23:30:09,623 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:09,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1070881780, now seen corresponding path program 283 times [2022-01-17 23:30:09,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:09,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528726911] [2022-01-17 23:30:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:09,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:10,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:10,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528726911] [2022-01-17 23:30:10,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528726911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:10,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:10,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:10,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79171466] [2022-01-17 23:30:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:10,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:10,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:10,024 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:11,248 INFO L93 Difference]: Finished difference Result 16570 states and 44685 transitions. [2022-01-17 23:30:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:11,269 INFO L225 Difference]: With dead ends: 16570 [2022-01-17 23:30:11,270 INFO L226 Difference]: Without dead ends: 16570 [2022-01-17 23:30:11,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:11,270 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1077 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:11,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 3117 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16570 states. [2022-01-17 23:30:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16570 to 6058. [2022-01-17 23:30:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-17 23:30:11,384 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-17 23:30:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:11,384 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-17 23:30:11,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-17 23:30:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:11,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:11,389 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] [2022-01-17 23:30:11,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-17 23:30:11,390 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:11,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:11,390 INFO L85 PathProgramCache]: Analyzing trace with hash 862258384, now seen corresponding path program 284 times [2022-01-17 23:30:11,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:11,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592812670] [2022-01-17 23:30:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:11,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:11,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:11,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592812670] [2022-01-17 23:30:11,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592812670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:11,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:11,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:11,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629543365] [2022-01-17 23:30:11,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:11,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:11,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:11,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:11,762 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:13,280 INFO L93 Difference]: Finished difference Result 16282 states and 43839 transitions. [2022-01-17 23:30:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:30:13,280 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:13,301 INFO L225 Difference]: With dead ends: 16282 [2022-01-17 23:30:13,302 INFO L226 Difference]: Without dead ends: 16282 [2022-01-17 23:30:13,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:30:13,302 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1077 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:13,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 3121 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:13,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16282 states. [2022-01-17 23:30:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16282 to 6090. [2022-01-17 23:30:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:30:13,415 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:30:13,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:13,415 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:30:13,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:13,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:30:13,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:13,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:13,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:13,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-17 23:30:13,420 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:13,421 INFO L85 PathProgramCache]: Analyzing trace with hash -152279856, now seen corresponding path program 285 times [2022-01-17 23:30:13,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:13,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57385487] [2022-01-17 23:30:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:13,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:13,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:13,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57385487] [2022-01-17 23:30:13,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57385487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:13,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:13,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:13,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986970252] [2022-01-17 23:30:13,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:13,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:13,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:13,751 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:14,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:14,870 INFO L93 Difference]: Finished difference Result 15994 states and 42993 transitions. [2022-01-17 23:30:14,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:14,871 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:14,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:14,892 INFO L225 Difference]: With dead ends: 15994 [2022-01-17 23:30:14,892 INFO L226 Difference]: Without dead ends: 15994 [2022-01-17 23:30:14,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:14,892 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1051 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:14,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 2830 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15994 states. [2022-01-17 23:30:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15994 to 6106. [2022-01-17 23:30:14,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:15,002 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:15,002 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:15,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:15,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:15,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:15,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-17 23:30:15,009 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1776229364, now seen corresponding path program 286 times [2022-01-17 23:30:15,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:15,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611509146] [2022-01-17 23:30:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:15,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:15,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:15,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611509146] [2022-01-17 23:30:15,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611509146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:15,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:15,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:15,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790804814] [2022-01-17 23:30:15,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:15,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:15,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:15,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:15,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:15,332 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:16,446 INFO L93 Difference]: Finished difference Result 14169 states and 37920 transitions. [2022-01-17 23:30:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:16,446 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:16,464 INFO L225 Difference]: With dead ends: 14169 [2022-01-17 23:30:16,464 INFO L226 Difference]: Without dead ends: 14169 [2022-01-17 23:30:16,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:16,465 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1150 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:16,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 2720 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:16,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14169 states. [2022-01-17 23:30:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14169 to 6026. [2022-01-17 23:30:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-17 23:30:16,563 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-17 23:30:16,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:16,563 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-17 23:30:16,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-17 23:30:16,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:16,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:16,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:16,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-17 23:30:16,569 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:16,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1791353952, now seen corresponding path program 287 times [2022-01-17 23:30:16,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:16,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144855517] [2022-01-17 23:30:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:16,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:16,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:16,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144855517] [2022-01-17 23:30:16,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144855517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:16,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:16,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:16,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795070741] [2022-01-17 23:30:16,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:16,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:16,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:16,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:16,933 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:18,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:18,167 INFO L93 Difference]: Finished difference Result 15893 states and 42375 transitions. [2022-01-17 23:30:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:18,168 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:18,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:18,190 INFO L225 Difference]: With dead ends: 15893 [2022-01-17 23:30:18,190 INFO L226 Difference]: Without dead ends: 15893 [2022-01-17 23:30:18,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:18,190 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 958 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:18,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 3284 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15893 states. [2022-01-17 23:30:18,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15893 to 6058. [2022-01-17 23:30:18,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-17 23:30:18,303 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-17 23:30:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:18,303 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-17 23:30:18,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-17 23:30:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:18,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:18,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:18,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-17 23:30:18,310 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash -570473180, now seen corresponding path program 288 times [2022-01-17 23:30:18,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:18,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760693027] [2022-01-17 23:30:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:18,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:18,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:18,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760693027] [2022-01-17 23:30:18,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760693027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:18,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:18,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:18,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776901778] [2022-01-17 23:30:18,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:18,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:18,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:18,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:18,627 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:19,769 INFO L93 Difference]: Finished difference Result 19021 states and 50703 transitions. [2022-01-17 23:30:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:19,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:19,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:19,794 INFO L225 Difference]: With dead ends: 19021 [2022-01-17 23:30:19,795 INFO L226 Difference]: Without dead ends: 19021 [2022-01-17 23:30:19,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:19,795 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1146 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:19,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 3038 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:19,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2022-01-17 23:30:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 6090. [2022-01-17 23:30:19,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:30:19,927 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:30:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:19,928 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:30:19,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:30:19,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:19,933 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:19,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:19,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-17 23:30:19,934 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:19,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:19,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1585011420, now seen corresponding path program 289 times [2022-01-17 23:30:19,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:19,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917137184] [2022-01-17 23:30:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:19,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:20,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:20,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917137184] [2022-01-17 23:30:20,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917137184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:20,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:20,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:20,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475866510] [2022-01-17 23:30:20,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:20,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:20,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:20,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:20,247 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:21,460 INFO L93 Difference]: Finished difference Result 18733 states and 49857 transitions. [2022-01-17 23:30:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:21,484 INFO L225 Difference]: With dead ends: 18733 [2022-01-17 23:30:21,484 INFO L226 Difference]: Without dead ends: 18733 [2022-01-17 23:30:21,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:21,485 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1093 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:21,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 3334 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18733 states. [2022-01-17 23:30:21,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18733 to 6106. [2022-01-17 23:30:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:21,608 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:21,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:21,608 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:21,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:21,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:21,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:21,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:21,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-17 23:30:21,614 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:21,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1086006368, now seen corresponding path program 290 times [2022-01-17 23:30:21,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:21,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390978258] [2022-01-17 23:30:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:21,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:21,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:21,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:21,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390978258] [2022-01-17 23:30:21,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390978258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:21,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:21,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:21,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321659800] [2022-01-17 23:30:21,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:21,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:21,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:21,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:21,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:21,956 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:23,586 INFO L93 Difference]: Finished difference Result 16908 states and 44784 transitions. [2022-01-17 23:30:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:30:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:23,608 INFO L225 Difference]: With dead ends: 16908 [2022-01-17 23:30:23,608 INFO L226 Difference]: Without dead ends: 16908 [2022-01-17 23:30:23,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:30:23,609 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1340 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:23,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 2923 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16908 states. [2022-01-17 23:30:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16908 to 6042. [2022-01-17 23:30:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-17 23:30:23,725 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-17 23:30:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:23,726 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-17 23:30:23,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-17 23:30:23,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:23,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:23,731 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] [2022-01-17 23:30:23,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-17 23:30:23,731 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:23,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:23,732 INFO L85 PathProgramCache]: Analyzing trace with hash 611759214, now seen corresponding path program 291 times [2022-01-17 23:30:23,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:23,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097839527] [2022-01-17 23:30:23,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:23,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:24,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:24,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097839527] [2022-01-17 23:30:24,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097839527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:24,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:24,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:24,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022149079] [2022-01-17 23:30:24,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:24,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:24,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:24,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:24,043 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:25,210 INFO L93 Difference]: Finished difference Result 15536 states and 41347 transitions. [2022-01-17 23:30:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:25,230 INFO L225 Difference]: With dead ends: 15536 [2022-01-17 23:30:25,230 INFO L226 Difference]: Without dead ends: 15536 [2022-01-17 23:30:25,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:25,230 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 999 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:25,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 3018 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15536 states. [2022-01-17 23:30:25,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15536 to 6106. [2022-01-17 23:30:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:25,344 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:25,344 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:25,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:25,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:25,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:25,350 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] [2022-01-17 23:30:25,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-17 23:30:25,350 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:25,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash -402779026, now seen corresponding path program 292 times [2022-01-17 23:30:25,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:25,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826536875] [2022-01-17 23:30:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:25,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:25,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826536875] [2022-01-17 23:30:25,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826536875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:25,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:25,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:25,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160015701] [2022-01-17 23:30:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:25,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:25,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:25,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:25,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:25,657 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:26,791 INFO L93 Difference]: Finished difference Result 18238 states and 48465 transitions. [2022-01-17 23:30:26,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:26,791 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:26,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:26,814 INFO L225 Difference]: With dead ends: 18238 [2022-01-17 23:30:26,814 INFO L226 Difference]: Without dead ends: 18238 [2022-01-17 23:30:26,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:26,815 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1087 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:26,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 2991 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18238 states. [2022-01-17 23:30:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18238 to 6122. [2022-01-17 23:30:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-17 23:30:26,934 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-17 23:30:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:26,934 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-17 23:30:26,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-17 23:30:26,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:26,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:26,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:26,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-17 23:30:26,940 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:26,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2026728534, now seen corresponding path program 293 times [2022-01-17 23:30:26,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:26,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457031592] [2022-01-17 23:30:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:26,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:27,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:27,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457031592] [2022-01-17 23:30:27,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457031592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:27,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:27,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:27,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465925456] [2022-01-17 23:30:27,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:27,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:27,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:27,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:27,287 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:28,965 INFO L93 Difference]: Finished difference Result 16413 states and 43392 transitions. [2022-01-17 23:30:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:30:28,965 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:28,986 INFO L225 Difference]: With dead ends: 16413 [2022-01-17 23:30:28,986 INFO L226 Difference]: Without dead ends: 16413 [2022-01-17 23:30:28,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:30:28,987 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1341 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:28,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 2880 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:29,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16413 states. [2022-01-17 23:30:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16413 to 6074. [2022-01-17 23:30:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-17 23:30:29,098 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-17 23:30:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:29,098 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-17 23:30:29,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-17 23:30:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:29,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:29,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:29,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-17 23:30:29,106 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:29,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:29,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1584301300, now seen corresponding path program 294 times [2022-01-17 23:30:29,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:29,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420841764] [2022-01-17 23:30:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:29,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:29,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:29,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420841764] [2022-01-17 23:30:29,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420841764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:29,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:29,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:30:29,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082324760] [2022-01-17 23:30:29,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:29,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:29,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:29,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:29,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:29,493 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:30,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:30,943 INFO L93 Difference]: Finished difference Result 15110 states and 40137 transitions. [2022-01-17 23:30:30,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:30,943 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:30,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:30,965 INFO L225 Difference]: With dead ends: 15110 [2022-01-17 23:30:30,965 INFO L226 Difference]: Without dead ends: 15110 [2022-01-17 23:30:30,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:30,965 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1142 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:30,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 4458 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15110 states. [2022-01-17 23:30:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15110 to 6106. [2022-01-17 23:30:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:31,084 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:31,084 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:31,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:31,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:31,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:31,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-17 23:30:31,090 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:31,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:31,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1086716488, now seen corresponding path program 295 times [2022-01-17 23:30:31,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:31,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97384132] [2022-01-17 23:30:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:31,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:31,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:31,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97384132] [2022-01-17 23:30:31,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97384132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:31,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:31,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:31,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992055280] [2022-01-17 23:30:31,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:31,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:31,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:31,422 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:33,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:33,233 INFO L93 Difference]: Finished difference Result 15918 states and 42000 transitions. [2022-01-17 23:30:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:30:33,233 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:33,255 INFO L225 Difference]: With dead ends: 15918 [2022-01-17 23:30:33,255 INFO L226 Difference]: Without dead ends: 15918 [2022-01-17 23:30:33,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:30:33,256 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1263 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:33,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2908 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15918 states. [2022-01-17 23:30:33,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15918 to 6090. [2022-01-17 23:30:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-17 23:30:33,370 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-17 23:30:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:33,370 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-17 23:30:33,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:33,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-17 23:30:33,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:33,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:33,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:33,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-17 23:30:33,376 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:33,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash -330371292, now seen corresponding path program 296 times [2022-01-17 23:30:33,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:33,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7733199] [2022-01-17 23:30:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:33,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:33,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:33,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7733199] [2022-01-17 23:30:33,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7733199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:33,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:33,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:33,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234629073] [2022-01-17 23:30:33,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:33,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:33,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:33,696 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:34,825 INFO L93 Difference]: Finished difference Result 15263 states and 40387 transitions. [2022-01-17 23:30:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:34,845 INFO L225 Difference]: With dead ends: 15263 [2022-01-17 23:30:34,845 INFO L226 Difference]: Without dead ends: 15263 [2022-01-17 23:30:34,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:34,846 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 1082 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:34,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 3214 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15263 states. [2022-01-17 23:30:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15263 to 6106. [2022-01-17 23:30:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-17 23:30:34,957 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-17 23:30:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:34,957 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-17 23:30:34,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-17 23:30:34,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:34,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:34,964 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] [2022-01-17 23:30:34,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-17 23:30:34,964 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1368267882, now seen corresponding path program 297 times [2022-01-17 23:30:34,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291697306] [2022-01-17 23:30:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:34,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:35,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:35,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291697306] [2022-01-17 23:30:35,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291697306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:35,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:35,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:35,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134077183] [2022-01-17 23:30:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:35,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:35,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:35,266 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:36,381 INFO L93 Difference]: Finished difference Result 12216 states and 32455 transitions. [2022-01-17 23:30:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:36,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:36,397 INFO L225 Difference]: With dead ends: 12216 [2022-01-17 23:30:36,397 INFO L226 Difference]: Without dead ends: 12216 [2022-01-17 23:30:36,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:36,397 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1006 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:36,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 2902 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2022-01-17 23:30:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 5962. [2022-01-17 23:30:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.722315436241611) internal successors, (16225), 5961 states have internal predecessors, (16225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 16225 transitions. [2022-01-17 23:30:36,487 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 16225 transitions. Word has length 130 [2022-01-17 23:30:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:36,487 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 16225 transitions. [2022-01-17 23:30:36,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:36,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 16225 transitions. [2022-01-17 23:30:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:36,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:36,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:36,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-17 23:30:36,493 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1552401182, now seen corresponding path program 298 times [2022-01-17 23:30:36,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:36,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937345675] [2022-01-17 23:30:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:36,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:36,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:36,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:36,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937345675] [2022-01-17 23:30:36,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937345675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:36,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:36,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:36,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221416375] [2022-01-17 23:30:36,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:36,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:36,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:36,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:36,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:36,814 INFO L87 Difference]: Start difference. First operand 5962 states and 16225 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:38,213 INFO L93 Difference]: Finished difference Result 10562 states and 28041 transitions. [2022-01-17 23:30:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:30:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:38,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:38,227 INFO L225 Difference]: With dead ends: 10562 [2022-01-17 23:30:38,228 INFO L226 Difference]: Without dead ends: 10562 [2022-01-17 23:30:38,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:30:38,228 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1351 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:38,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2516 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-01-17 23:30:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 5978. [2022-01-17 23:30:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.7228915662650603) internal successors, (16272), 5977 states have internal predecessors, (16272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 16272 transitions. [2022-01-17 23:30:38,313 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 16272 transitions. Word has length 130 [2022-01-17 23:30:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:38,313 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 16272 transitions. [2022-01-17 23:30:38,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 16272 transitions. [2022-01-17 23:30:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:38,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:38,319 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] [2022-01-17 23:30:38,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-17 23:30:38,319 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:38,320 INFO L85 PathProgramCache]: Analyzing trace with hash 146237992, now seen corresponding path program 299 times [2022-01-17 23:30:38,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516298673] [2022-01-17 23:30:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:38,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:38,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:38,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516298673] [2022-01-17 23:30:38,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516298673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:38,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:38,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:38,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291872526] [2022-01-17 23:30:38,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:38,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:38,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:38,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:38,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:38,658 INFO L87 Difference]: Start difference. First operand 5978 states and 16272 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:39,723 INFO L93 Difference]: Finished difference Result 10466 states and 27759 transitions. [2022-01-17 23:30:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:39,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:39,735 INFO L225 Difference]: With dead ends: 10466 [2022-01-17 23:30:39,736 INFO L226 Difference]: Without dead ends: 10466 [2022-01-17 23:30:39,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:39,736 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1239 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:39,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 2673 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-17 23:30:39,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2022-01-17 23:30:39,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 5962. [2022-01-17 23:30:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.722315436241611) internal successors, (16225), 5961 states have internal predecessors, (16225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 16225 transitions. [2022-01-17 23:30:39,816 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 16225 transitions. Word has length 130 [2022-01-17 23:30:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:39,816 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 16225 transitions. [2022-01-17 23:30:39,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:39,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 16225 transitions. [2022-01-17 23:30:39,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:39,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:39,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:39,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-17 23:30:39,822 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1393801124, now seen corresponding path program 300 times [2022-01-17 23:30:39,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:39,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629046873] [2022-01-17 23:30:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:39,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:40,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:40,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629046873] [2022-01-17 23:30:40,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629046873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:40,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:40,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:30:40,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777534501] [2022-01-17 23:30:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:40,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:40,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:40,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:40,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:40,204 INFO L87 Difference]: Start difference. First operand 5962 states and 16225 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:41,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:41,577 INFO L93 Difference]: Finished difference Result 8089 states and 21495 transitions. [2022-01-17 23:30:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:41,577 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:41,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:41,587 INFO L225 Difference]: With dead ends: 8089 [2022-01-17 23:30:41,587 INFO L226 Difference]: Without dead ends: 8089 [2022-01-17 23:30:41,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:41,588 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 978 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:41,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 4318 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-01-17 23:30:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 5738. [2022-01-17 23:30:41,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-17 23:30:41,655 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-17 23:30:41,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:41,655 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-17 23:30:41,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-17 23:30:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:41,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:41,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:41,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-17 23:30:41,660 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:41,660 INFO L85 PathProgramCache]: Analyzing trace with hash 84420744, now seen corresponding path program 301 times [2022-01-17 23:30:41,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:41,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545678766] [2022-01-17 23:30:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:41,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:41,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:41,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:41,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545678766] [2022-01-17 23:30:41,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545678766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:41,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:41,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:41,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365627149] [2022-01-17 23:30:41,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:41,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:41,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:41,987 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:43,434 INFO L93 Difference]: Finished difference Result 10745 states and 28586 transitions. [2022-01-17 23:30:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:30:43,435 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:43,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:43,448 INFO L225 Difference]: With dead ends: 10745 [2022-01-17 23:30:43,449 INFO L226 Difference]: Without dead ends: 10745 [2022-01-17 23:30:43,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:30:43,449 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1352 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:43,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 2827 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:43,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2022-01-17 23:30:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5770. [2022-01-17 23:30:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-17 23:30:43,540 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-17 23:30:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:43,540 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-17 23:30:43,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-17 23:30:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:43,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:43,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:43,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-17 23:30:43,546 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:43,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1539528764, now seen corresponding path program 302 times [2022-01-17 23:30:43,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:43,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684203843] [2022-01-17 23:30:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:43,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:43,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:43,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684203843] [2022-01-17 23:30:43,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684203843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:43,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:43,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:43,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227810191] [2022-01-17 23:30:43,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:43,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:43,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:43,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:43,877 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:45,455 INFO L93 Difference]: Finished difference Result 11553 states and 30449 transitions. [2022-01-17 23:30:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:30:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:45,470 INFO L225 Difference]: With dead ends: 11553 [2022-01-17 23:30:45,470 INFO L226 Difference]: Without dead ends: 11553 [2022-01-17 23:30:45,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:30:45,471 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1310 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:45,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2936 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2022-01-17 23:30:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5754. [2022-01-17 23:30:45,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5754 states, 5752 states have (on average 2.7145340751043117) internal successors, (15614), 5753 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 15614 transitions. [2022-01-17 23:30:45,561 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 15614 transitions. Word has length 130 [2022-01-17 23:30:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:45,561 INFO L470 AbstractCegarLoop]: Abstraction has 5754 states and 15614 transitions. [2022-01-17 23:30:45,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 15614 transitions. [2022-01-17 23:30:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:45,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:45,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:45,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-01-17 23:30:45,567 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:45,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1338350752, now seen corresponding path program 303 times [2022-01-17 23:30:45,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:45,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136677502] [2022-01-17 23:30:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:45,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:45,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:45,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136677502] [2022-01-17 23:30:45,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136677502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:45,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:45,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:45,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120529937] [2022-01-17 23:30:45,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:45,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:45,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:45,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:45,862 INFO L87 Difference]: Start difference. First operand 5754 states and 15614 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:47,033 INFO L93 Difference]: Finished difference Result 13095 states and 34232 transitions. [2022-01-17 23:30:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:47,033 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:47,051 INFO L225 Difference]: With dead ends: 13095 [2022-01-17 23:30:47,051 INFO L226 Difference]: Without dead ends: 13095 [2022-01-17 23:30:47,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:47,051 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 1161 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:47,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3098 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13095 states. [2022-01-17 23:30:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13095 to 5770. [2022-01-17 23:30:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-17 23:30:47,152 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-17 23:30:47,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:47,152 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-17 23:30:47,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:47,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-17 23:30:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:47,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:47,158 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, 1] [2022-01-17 23:30:47,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-01-17 23:30:47,158 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:47,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1257977370, now seen corresponding path program 304 times [2022-01-17 23:30:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:47,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051529109] [2022-01-17 23:30:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:47,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:47,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:47,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051529109] [2022-01-17 23:30:47,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051529109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:47,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:47,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:47,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306936177] [2022-01-17 23:30:47,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:47,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:47,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:47,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:47,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:47,475 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:48,583 INFO L93 Difference]: Finished difference Result 10048 states and 26300 transitions. [2022-01-17 23:30:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:48,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:48,595 INFO L225 Difference]: With dead ends: 10048 [2022-01-17 23:30:48,595 INFO L226 Difference]: Without dead ends: 10048 [2022-01-17 23:30:48,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:48,596 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1088 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:48,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2754 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:48,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10048 states. [2022-01-17 23:30:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10048 to 5706. [2022-01-17 23:30:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-17 23:30:48,677 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-17 23:30:48,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:48,677 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-17 23:30:48,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-17 23:30:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:48,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:48,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:48,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-01-17 23:30:48,683 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:48,683 INFO L85 PathProgramCache]: Analyzing trace with hash 300802414, now seen corresponding path program 305 times [2022-01-17 23:30:48,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:48,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276222613] [2022-01-17 23:30:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:48,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:48,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:48,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276222613] [2022-01-17 23:30:48,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276222613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:48,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:48,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:48,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573937438] [2022-01-17 23:30:48,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:48,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:48,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:48,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:48,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:48,991 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:50,106 INFO L93 Difference]: Finished difference Result 11331 states and 30266 transitions. [2022-01-17 23:30:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:50,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:50,121 INFO L225 Difference]: With dead ends: 11331 [2022-01-17 23:30:50,121 INFO L226 Difference]: Without dead ends: 11331 [2022-01-17 23:30:50,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:50,121 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1232 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:50,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 2864 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:50,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11331 states. [2022-01-17 23:30:50,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11331 to 5770. [2022-01-17 23:30:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-17 23:30:50,229 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-17 23:30:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:50,229 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-17 23:30:50,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-17 23:30:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:50,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:50,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:50,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-01-17 23:30:50,235 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -148827598, now seen corresponding path program 306 times [2022-01-17 23:30:50,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:50,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965769137] [2022-01-17 23:30:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:50,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:50,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:50,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965769137] [2022-01-17 23:30:50,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965769137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:50,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:50,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:30:50,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459951122] [2022-01-17 23:30:50,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:50,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:30:50,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:50,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:30:50,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:30:50,622 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:52,071 INFO L93 Difference]: Finished difference Result 14033 states and 37384 transitions. [2022-01-17 23:30:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:52,090 INFO L225 Difference]: With dead ends: 14033 [2022-01-17 23:30:52,090 INFO L226 Difference]: Without dead ends: 14033 [2022-01-17 23:30:52,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:30:52,090 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1222 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:52,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 4096 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:30:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14033 states. [2022-01-17 23:30:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14033 to 5786. [2022-01-17 23:30:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5786 states, 5784 states have (on average 2.715767634854772) internal successors, (15708), 5785 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5786 states to 5786 states and 15708 transitions. [2022-01-17 23:30:52,192 INFO L78 Accepts]: Start accepts. Automaton has 5786 states and 15708 transitions. Word has length 130 [2022-01-17 23:30:52,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:52,192 INFO L470 AbstractCegarLoop]: Abstraction has 5786 states and 15708 transitions. [2022-01-17 23:30:52,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5786 states and 15708 transitions. [2022-01-17 23:30:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:52,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:52,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:52,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-01-17 23:30:52,198 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:52,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:52,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1772777106, now seen corresponding path program 307 times [2022-01-17 23:30:52,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:52,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254185749] [2022-01-17 23:30:52,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:52,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:52,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:52,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:52,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254185749] [2022-01-17 23:30:52,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254185749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:52,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:52,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:52,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229363022] [2022-01-17 23:30:52,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:52,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:52,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:52,524 INFO L87 Difference]: Start difference. First operand 5786 states and 15708 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:54,081 INFO L93 Difference]: Finished difference Result 12208 states and 32311 transitions. [2022-01-17 23:30:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:30:54,082 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:54,098 INFO L225 Difference]: With dead ends: 12208 [2022-01-17 23:30:54,098 INFO L226 Difference]: Without dead ends: 12208 [2022-01-17 23:30:54,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:30:54,098 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1315 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:54,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 2907 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2022-01-17 23:30:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 5738. [2022-01-17 23:30:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-17 23:30:54,195 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-17 23:30:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:54,195 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-17 23:30:54,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-17 23:30:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:54,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:54,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:54,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-01-17 23:30:54,201 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:54,201 INFO L85 PathProgramCache]: Analyzing trace with hash 781827896, now seen corresponding path program 308 times [2022-01-17 23:30:54,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:54,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176069813] [2022-01-17 23:30:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:54,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:54,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:54,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:54,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176069813] [2022-01-17 23:30:54,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176069813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:54,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:54,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:54,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057468917] [2022-01-17 23:30:54,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:54,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:54,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:54,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:54,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:54,514 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:55,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:55,999 INFO L93 Difference]: Finished difference Result 13485 states and 35515 transitions. [2022-01-17 23:30:55,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:55,999 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:56,014 INFO L225 Difference]: With dead ends: 13485 [2022-01-17 23:30:56,014 INFO L226 Difference]: Without dead ends: 13485 [2022-01-17 23:30:56,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:30:56,015 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1152 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:56,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 3154 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:30:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13485 states. [2022-01-17 23:30:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13485 to 5770. [2022-01-17 23:30:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-17 23:30:56,095 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-17 23:30:56,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:56,095 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-17 23:30:56,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-17 23:30:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:56,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:56,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:56,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-01-17 23:30:56,100 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:56,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:56,101 INFO L85 PathProgramCache]: Analyzing trace with hash -842121612, now seen corresponding path program 309 times [2022-01-17 23:30:56,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:56,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933700878] [2022-01-17 23:30:56,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:56,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:56,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:56,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933700878] [2022-01-17 23:30:56,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933700878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:56,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:56,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:30:56,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461275784] [2022-01-17 23:30:56,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:56,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:30:56,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:56,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:30:56,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:30:56,405 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:57,519 INFO L93 Difference]: Finished difference Result 14293 states and 37378 transitions. [2022-01-17 23:30:57,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:30:57,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:57,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:57,538 INFO L225 Difference]: With dead ends: 14293 [2022-01-17 23:30:57,538 INFO L226 Difference]: Without dead ends: 14293 [2022-01-17 23:30:57,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:30:57,538 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 1339 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:57,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 2743 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14293 states. [2022-01-17 23:30:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14293 to 5754. [2022-01-17 23:30:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5754 states, 5752 states have (on average 2.7145340751043117) internal successors, (15614), 5753 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 15614 transitions. [2022-01-17 23:30:57,633 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 15614 transitions. Word has length 130 [2022-01-17 23:30:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:57,633 INFO L470 AbstractCegarLoop]: Abstraction has 5754 states and 15614 transitions. [2022-01-17 23:30:57,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 15614 transitions. [2022-01-17 23:30:57,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:57,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:57,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:57,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-01-17 23:30:57,638 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2035757904, now seen corresponding path program 310 times [2022-01-17 23:30:57,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349659845] [2022-01-17 23:30:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:57,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:30:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:30:57,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:30:57,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349659845] [2022-01-17 23:30:57,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349659845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:30:57,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:30:57,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:30:57,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706576016] [2022-01-17 23:30:57,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:30:57,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:30:57,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:30:57,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:30:57,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:30:57,957 INFO L87 Difference]: Start difference. First operand 5754 states and 15614 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:30:59,585 INFO L93 Difference]: Finished difference Result 13638 states and 35765 transitions. [2022-01-17 23:30:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:30:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:30:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:30:59,603 INFO L225 Difference]: With dead ends: 13638 [2022-01-17 23:30:59,603 INFO L226 Difference]: Without dead ends: 13638 [2022-01-17 23:30:59,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:30:59,604 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1206 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:30:59,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 2801 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:30:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2022-01-17 23:30:59,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 5770. [2022-01-17 23:30:59,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-17 23:30:59,700 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-17 23:30:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:30:59,700 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-17 23:30:59,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:30:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-17 23:30:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:30:59,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:30:59,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:30:59,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-01-17 23:30:59,706 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:30:59,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:30:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash -560570218, now seen corresponding path program 311 times [2022-01-17 23:30:59,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:30:59,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718080623] [2022-01-17 23:30:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:30:59,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:30:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:00,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:00,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718080623] [2022-01-17 23:31:00,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718080623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:00,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:00,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:00,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069286704] [2022-01-17 23:31:00,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:00,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:00,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:00,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:00,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:00,008 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:01,128 INFO L93 Difference]: Finished difference Result 10591 states and 27833 transitions. [2022-01-17 23:31:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:01,141 INFO L225 Difference]: With dead ends: 10591 [2022-01-17 23:31:01,141 INFO L226 Difference]: Without dead ends: 10591 [2022-01-17 23:31:01,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:01,142 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1157 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:01,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2777 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10591 states. [2022-01-17 23:31:01,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10591 to 5642. [2022-01-17 23:31:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5640 states have (on average 2.7101063829787235) internal successors, (15285), 5641 states have internal predecessors, (15285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 15285 transitions. [2022-01-17 23:31:01,249 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 15285 transitions. Word has length 130 [2022-01-17 23:31:01,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:01,249 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 15285 transitions. [2022-01-17 23:31:01,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:01,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 15285 transitions. [2022-01-17 23:31:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:01,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:01,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:01,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-01-17 23:31:01,255 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:01,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1672710068, now seen corresponding path program 312 times [2022-01-17 23:31:01,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791120315] [2022-01-17 23:31:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:01,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:01,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:01,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791120315] [2022-01-17 23:31:01,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791120315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:01,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:01,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:01,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861568761] [2022-01-17 23:31:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:01,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:01,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:01,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:01,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:01,600 INFO L87 Difference]: Start difference. First operand 5642 states and 15285 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:03,027 INFO L93 Difference]: Finished difference Result 11960 states and 32093 transitions. [2022-01-17 23:31:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:31:03,027 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:03,043 INFO L225 Difference]: With dead ends: 11960 [2022-01-17 23:31:03,044 INFO L226 Difference]: Without dead ends: 11960 [2022-01-17 23:31:03,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:31:03,044 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1229 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:03,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 2570 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:03,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11960 states. [2022-01-17 23:31:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11960 to 5674. [2022-01-17 23:31:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 5672 states have (on average 2.7113892806770097) internal successors, (15379), 5673 states have internal predecessors, (15379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 15379 transitions. [2022-01-17 23:31:03,140 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 15379 transitions. Word has length 130 [2022-01-17 23:31:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:03,140 INFO L470 AbstractCegarLoop]: Abstraction has 5674 states and 15379 transitions. [2022-01-17 23:31:03,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 15379 transitions. [2022-01-17 23:31:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:03,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:03,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:03,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-01-17 23:31:03,146 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:03,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:03,146 INFO L85 PathProgramCache]: Analyzing trace with hash 260430096, now seen corresponding path program 313 times [2022-01-17 23:31:03,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:03,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66371625] [2022-01-17 23:31:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:03,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:03,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:03,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66371625] [2022-01-17 23:31:03,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66371625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:03,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:03,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:03,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134901513] [2022-01-17 23:31:03,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:03,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:03,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:03,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:03,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:03,463 INFO L87 Difference]: Start difference. First operand 5674 states and 15379 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:04,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:04,631 INFO L93 Difference]: Finished difference Result 15088 states and 40421 transitions. [2022-01-17 23:31:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:04,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:04,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:04,651 INFO L225 Difference]: With dead ends: 15088 [2022-01-17 23:31:04,652 INFO L226 Difference]: Without dead ends: 15088 [2022-01-17 23:31:04,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:04,652 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1044 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:04,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 3112 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15088 states. [2022-01-17 23:31:04,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15088 to 5706. [2022-01-17 23:31:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:04,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-17 23:31:04,756 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-17 23:31:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:04,756 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-17 23:31:04,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-17 23:31:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:04,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:04,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:04,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-01-17 23:31:04,762 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:04,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:04,762 INFO L85 PathProgramCache]: Analyzing trace with hash -754108144, now seen corresponding path program 314 times [2022-01-17 23:31:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:04,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421039211] [2022-01-17 23:31:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:04,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:05,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:05,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421039211] [2022-01-17 23:31:05,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421039211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:05,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:05,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:05,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867025361] [2022-01-17 23:31:05,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:05,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:05,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:05,126 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:06,729 INFO L93 Difference]: Finished difference Result 14800 states and 39575 transitions. [2022-01-17 23:31:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:31:06,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:06,748 INFO L225 Difference]: With dead ends: 14800 [2022-01-17 23:31:06,748 INFO L226 Difference]: Without dead ends: 14800 [2022-01-17 23:31:06,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:31:06,748 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1227 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:06,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 2936 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14800 states. [2022-01-17 23:31:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 5722. [2022-01-17 23:31:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-17 23:31:06,864 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:06,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:06,864 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-17 23:31:06,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-17 23:31:06,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:06,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:06,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:06,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-01-17 23:31:06,869 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:06,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1916909644, now seen corresponding path program 315 times [2022-01-17 23:31:06,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:06,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013188823] [2022-01-17 23:31:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:06,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:07,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:07,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013188823] [2022-01-17 23:31:07,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013188823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:07,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:07,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:07,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204397017] [2022-01-17 23:31:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:07,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:07,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:07,213 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:08,778 INFO L93 Difference]: Finished difference Result 12975 states and 34502 transitions. [2022-01-17 23:31:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:31:08,778 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:08,796 INFO L225 Difference]: With dead ends: 12975 [2022-01-17 23:31:08,796 INFO L226 Difference]: Without dead ends: 12975 [2022-01-17 23:31:08,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:31:08,796 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1331 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:08,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 2894 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12975 states. [2022-01-17 23:31:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12975 to 5658. [2022-01-17 23:31:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5658 states, 5656 states have (on average 2.710749646393211) internal successors, (15332), 5657 states have internal predecessors, (15332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5658 states to 5658 states and 15332 transitions. [2022-01-17 23:31:08,890 INFO L78 Accepts]: Start accepts. Automaton has 5658 states and 15332 transitions. Word has length 130 [2022-01-17 23:31:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:08,890 INFO L470 AbstractCegarLoop]: Abstraction has 5658 states and 15332 transitions. [2022-01-17 23:31:08,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5658 states and 15332 transitions. [2022-01-17 23:31:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:08,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:08,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:08,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-01-17 23:31:08,895 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:08,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1442662490, now seen corresponding path program 316 times [2022-01-17 23:31:08,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:08,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923862060] [2022-01-17 23:31:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:08,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:09,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:09,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923862060] [2022-01-17 23:31:09,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923862060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:09,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:09,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:09,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265961919] [2022-01-17 23:31:09,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:09,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:09,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:09,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:09,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:09,247 INFO L87 Difference]: Start difference. First operand 5658 states and 15332 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:10,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:10,842 INFO L93 Difference]: Finished difference Result 14454 states and 38258 transitions. [2022-01-17 23:31:10,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:10,842 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:10,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:10,861 INFO L225 Difference]: With dead ends: 14454 [2022-01-17 23:31:10,861 INFO L226 Difference]: Without dead ends: 14454 [2022-01-17 23:31:10,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:31:10,862 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1093 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:10,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 2867 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:10,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14454 states. [2022-01-17 23:31:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14454 to 5722. [2022-01-17 23:31:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-17 23:31:10,964 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:10,964 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-17 23:31:10,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-17 23:31:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:10,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:10,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:10,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-01-17 23:31:10,969 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:10,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:10,970 INFO L85 PathProgramCache]: Analyzing trace with hash 428124250, now seen corresponding path program 317 times [2022-01-17 23:31:10,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:10,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060745286] [2022-01-17 23:31:10,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:10,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:11,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:11,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060745286] [2022-01-17 23:31:11,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060745286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:11,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:11,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:11,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907072024] [2022-01-17 23:31:11,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:11,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:11,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:11,279 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:12,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:12,423 INFO L93 Difference]: Finished difference Result 17156 states and 45376 transitions. [2022-01-17 23:31:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:12,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:12,445 INFO L225 Difference]: With dead ends: 17156 [2022-01-17 23:31:12,445 INFO L226 Difference]: Without dead ends: 17156 [2022-01-17 23:31:12,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:12,446 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1215 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:12,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 2864 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17156 states. [2022-01-17 23:31:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17156 to 5738. [2022-01-17 23:31:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-17 23:31:12,575 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-17 23:31:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:12,575 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-17 23:31:12,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-17 23:31:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:12,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:12,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:12,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-01-17 23:31:12,580 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:12,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1195825258, now seen corresponding path program 318 times [2022-01-17 23:31:12,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:12,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315113911] [2022-01-17 23:31:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:12,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:12,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:12,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315113911] [2022-01-17 23:31:12,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315113911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:12,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:12,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:12,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562954826] [2022-01-17 23:31:12,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:12,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:12,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:12,882 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:14,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:14,068 INFO L93 Difference]: Finished difference Result 15331 states and 40303 transitions. [2022-01-17 23:31:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:14,069 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:14,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:14,088 INFO L225 Difference]: With dead ends: 15331 [2022-01-17 23:31:14,089 INFO L226 Difference]: Without dead ends: 15331 [2022-01-17 23:31:14,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:14,089 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 1226 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:14,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 3177 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:14,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2022-01-17 23:31:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 5690. [2022-01-17 23:31:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5688 states have (on average 2.712025316455696) internal successors, (15426), 5689 states have internal predecessors, (15426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 15426 transitions. [2022-01-17 23:31:14,200 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 15426 transitions. Word has length 130 [2022-01-17 23:31:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:14,200 INFO L470 AbstractCegarLoop]: Abstraction has 5690 states and 15426 transitions. [2022-01-17 23:31:14,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 15426 transitions. [2022-01-17 23:31:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:14,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:14,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:14,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-01-17 23:31:14,205 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:14,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash -753398024, now seen corresponding path program 319 times [2022-01-17 23:31:14,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:14,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507650316] [2022-01-17 23:31:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:14,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:14,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:14,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507650316] [2022-01-17 23:31:14,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507650316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:14,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:14,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:14,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922667305] [2022-01-17 23:31:14,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:14,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:14,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:14,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:14,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:14,533 INFO L87 Difference]: Start difference. First operand 5690 states and 15426 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:16,125 INFO L93 Difference]: Finished difference Result 14028 states and 37048 transitions. [2022-01-17 23:31:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:16,126 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:16,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:16,144 INFO L225 Difference]: With dead ends: 14028 [2022-01-17 23:31:16,145 INFO L226 Difference]: Without dead ends: 14028 [2022-01-17 23:31:16,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:31:16,145 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1260 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:16,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 2836 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14028 states. [2022-01-17 23:31:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14028 to 5722. [2022-01-17 23:31:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-17 23:31:16,257 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:16,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:16,257 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-17 23:31:16,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:16,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-17 23:31:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:16,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:16,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:16,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-01-17 23:31:16,264 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:16,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:16,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1917619764, now seen corresponding path program 320 times [2022-01-17 23:31:16,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:16,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972333479] [2022-01-17 23:31:16,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:16,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:16,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:16,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:16,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972333479] [2022-01-17 23:31:16,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972333479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:16,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:16,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:16,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265561714] [2022-01-17 23:31:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:16,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:16,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:16,569 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:17,872 INFO L93 Difference]: Finished difference Result 14836 states and 38911 transitions. [2022-01-17 23:31:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:17,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:17,893 INFO L225 Difference]: With dead ends: 14836 [2022-01-17 23:31:17,894 INFO L226 Difference]: Without dead ends: 14836 [2022-01-17 23:31:17,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:17,894 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 1131 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:17,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 3174 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14836 states. [2022-01-17 23:31:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14836 to 5706. [2022-01-17 23:31:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:18,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-17 23:31:18,015 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-17 23:31:18,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:18,015 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-17 23:31:18,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-17 23:31:18,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:18,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:18,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:18,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-01-17 23:31:18,021 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:18,022 INFO L85 PathProgramCache]: Analyzing trace with hash 500531984, now seen corresponding path program 321 times [2022-01-17 23:31:18,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:18,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881607416] [2022-01-17 23:31:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:18,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:18,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:18,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881607416] [2022-01-17 23:31:18,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881607416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:18,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:18,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:18,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109626823] [2022-01-17 23:31:18,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:18,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:18,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:18,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:18,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:18,346 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:19,960 INFO L93 Difference]: Finished difference Result 14181 states and 37298 transitions. [2022-01-17 23:31:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:19,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:19,979 INFO L225 Difference]: With dead ends: 14181 [2022-01-17 23:31:19,979 INFO L226 Difference]: Without dead ends: 14181 [2022-01-17 23:31:19,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:31:19,980 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1305 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:19,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 3062 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14181 states. [2022-01-17 23:31:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14181 to 5722. [2022-01-17 23:31:20,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-17 23:31:20,074 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:20,074 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-17 23:31:20,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:20,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-17 23:31:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:20,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:20,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:20,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-01-17 23:31:20,079 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:20,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2095796138, now seen corresponding path program 322 times [2022-01-17 23:31:20,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:20,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181785152] [2022-01-17 23:31:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:20,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:20,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:20,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181785152] [2022-01-17 23:31:20,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181785152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:20,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:20,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:20,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534304155] [2022-01-17 23:31:20,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:20,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:20,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:20,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:20,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:20,406 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:21,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:21,862 INFO L93 Difference]: Finished difference Result 11134 states and 29366 transitions. [2022-01-17 23:31:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:31:21,863 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:21,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:21,877 INFO L225 Difference]: With dead ends: 11134 [2022-01-17 23:31:21,877 INFO L226 Difference]: Without dead ends: 11134 [2022-01-17 23:31:21,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:31:21,878 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1100 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:21,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 2714 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11134 states. [2022-01-17 23:31:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11134 to 5610. [2022-01-17 23:31:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 5608 states have (on average 2.7088088445078458) internal successors, (15191), 5609 states have internal predecessors, (15191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:21,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 15191 transitions. [2022-01-17 23:31:21,968 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 15191 transitions. Word has length 130 [2022-01-17 23:31:21,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:21,968 INFO L470 AbstractCegarLoop]: Abstraction has 5610 states and 15191 transitions. [2022-01-17 23:31:21,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:21,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 15191 transitions. [2022-01-17 23:31:21,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:21,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:21,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:21,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-01-17 23:31:21,974 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:21,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1826462292, now seen corresponding path program 323 times [2022-01-17 23:31:21,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:21,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578276623] [2022-01-17 23:31:21,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:21,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:22,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:22,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578276623] [2022-01-17 23:31:22,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578276623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:22,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:22,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:22,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54840273] [2022-01-17 23:31:22,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:22,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:22,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:22,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:22,343 INFO L87 Difference]: Start difference. First operand 5610 states and 15191 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:23,753 INFO L93 Difference]: Finished difference Result 12365 states and 33262 transitions. [2022-01-17 23:31:23,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-17 23:31:23,753 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:23,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:23,767 INFO L225 Difference]: With dead ends: 12365 [2022-01-17 23:31:23,767 INFO L226 Difference]: Without dead ends: 12365 [2022-01-17 23:31:23,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:31:23,767 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 990 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:23,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 2927 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12365 states. [2022-01-17 23:31:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12365 to 5642. [2022-01-17 23:31:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5640 states have (on average 2.7101063829787235) internal successors, (15285), 5641 states have internal predecessors, (15285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:23,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 15285 transitions. [2022-01-17 23:31:23,847 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 15285 transitions. Word has length 130 [2022-01-17 23:31:23,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:23,848 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 15285 transitions. [2022-01-17 23:31:23,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:23,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 15285 transitions. [2022-01-17 23:31:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:23,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:23,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:23,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-01-17 23:31:23,853 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:23,853 INFO L85 PathProgramCache]: Analyzing trace with hash -519928600, now seen corresponding path program 324 times [2022-01-17 23:31:23,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:23,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403732495] [2022-01-17 23:31:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:23,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:24,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:24,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403732495] [2022-01-17 23:31:24,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403732495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:24,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:24,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:24,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997589966] [2022-01-17 23:31:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:24,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:24,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:24,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:24,432 INFO L87 Difference]: Start difference. First operand 5642 states and 15285 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:26,741 INFO L93 Difference]: Finished difference Result 9432 states and 24747 transitions. [2022-01-17 23:31:26,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:31:26,742 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:26,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:26,753 INFO L225 Difference]: With dead ends: 9432 [2022-01-17 23:31:26,754 INFO L226 Difference]: Without dead ends: 9432 [2022-01-17 23:31:26,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=523, Invalid=1639, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:31:26,754 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1060 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:26,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 3518 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:31:26,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-01-17 23:31:26,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 5736. [2022-01-17 23:31:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.706662016044646) internal successors, (15520), 5735 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15520 transitions. [2022-01-17 23:31:26,824 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:26,824 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15520 transitions. [2022-01-17 23:31:26,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15520 transitions. [2022-01-17 23:31:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:26,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:26,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:26,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-01-17 23:31:26,829 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1952660164, now seen corresponding path program 325 times [2022-01-17 23:31:26,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:26,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60562675] [2022-01-17 23:31:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:26,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:27,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:27,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60562675] [2022-01-17 23:31:27,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60562675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:27,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:27,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:27,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678156525] [2022-01-17 23:31:27,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:27,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:27,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:27,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:27,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:27,178 INFO L87 Difference]: Start difference. First operand 5736 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:28,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:28,745 INFO L93 Difference]: Finished difference Result 17092 states and 45712 transitions. [2022-01-17 23:31:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:28,768 INFO L225 Difference]: With dead ends: 17092 [2022-01-17 23:31:28,768 INFO L226 Difference]: Without dead ends: 17092 [2022-01-17 23:31:28,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:31:28,768 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1049 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:28,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 2936 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17092 states. [2022-01-17 23:31:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17092 to 5768. [2022-01-17 23:31:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.707943114810961) internal successors, (15614), 5767 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15614 transitions. [2022-01-17 23:31:28,882 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15614 transitions. Word has length 130 [2022-01-17 23:31:28,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:28,882 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15614 transitions. [2022-01-17 23:31:28,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15614 transitions. [2022-01-17 23:31:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:28,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:28,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:28,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-01-17 23:31:28,888 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash -19520000, now seen corresponding path program 326 times [2022-01-17 23:31:28,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:28,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745877621] [2022-01-17 23:31:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:28,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:29,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:29,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745877621] [2022-01-17 23:31:29,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745877621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:29,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:29,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:29,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930191713] [2022-01-17 23:31:29,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:29,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:29,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:29,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:29,244 INFO L87 Difference]: Start difference. First operand 5768 states and 15614 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:30,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:30,449 INFO L93 Difference]: Finished difference Result 20220 states and 54040 transitions. [2022-01-17 23:31:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:30,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:30,476 INFO L225 Difference]: With dead ends: 20220 [2022-01-17 23:31:30,476 INFO L226 Difference]: Without dead ends: 20220 [2022-01-17 23:31:30,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:30,476 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1071 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:30,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 3350 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:30,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20220 states. [2022-01-17 23:31:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20220 to 5800. [2022-01-17 23:31:30,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5798 states have (on average 2.709210072438772) internal successors, (15708), 5799 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 15708 transitions. [2022-01-17 23:31:30,605 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 15708 transitions. Word has length 130 [2022-01-17 23:31:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:30,605 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 15708 transitions. [2022-01-17 23:31:30,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 15708 transitions. [2022-01-17 23:31:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:30,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:30,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:30,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-01-17 23:31:30,610 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1034058240, now seen corresponding path program 327 times [2022-01-17 23:31:30,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:30,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177533940] [2022-01-17 23:31:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:30,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:30,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:30,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177533940] [2022-01-17 23:31:30,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177533940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:30,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:30,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:30,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547012348] [2022-01-17 23:31:30,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:30,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:30,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:30,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:30,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:30,946 INFO L87 Difference]: Start difference. First operand 5800 states and 15708 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:32,766 INFO L93 Difference]: Finished difference Result 19932 states and 53194 transitions. [2022-01-17 23:31:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:32,766 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:32,794 INFO L225 Difference]: With dead ends: 19932 [2022-01-17 23:31:32,794 INFO L226 Difference]: Without dead ends: 19932 [2022-01-17 23:31:32,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:31:32,794 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1173 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:32,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 3330 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19932 states. [2022-01-17 23:31:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19932 to 5816. [2022-01-17 23:31:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-17 23:31:32,938 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-17 23:31:32,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:32,938 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-17 23:31:32,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:32,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-17 23:31:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:32,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:32,943 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] [2022-01-17 23:31:32,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-01-17 23:31:32,944 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:32,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:32,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1636959548, now seen corresponding path program 328 times [2022-01-17 23:31:32,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:32,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709229233] [2022-01-17 23:31:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:32,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:33,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:33,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709229233] [2022-01-17 23:31:33,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709229233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:33,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:33,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:33,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411506954] [2022-01-17 23:31:33,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:33,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:33,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:33,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:33,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:33,290 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:34,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:34,990 INFO L93 Difference]: Finished difference Result 18107 states and 48121 transitions. [2022-01-17 23:31:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:35,014 INFO L225 Difference]: With dead ends: 18107 [2022-01-17 23:31:35,014 INFO L226 Difference]: Without dead ends: 18107 [2022-01-17 23:31:35,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:31:35,015 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1316 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:35,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 3222 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:35,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18107 states. [2022-01-17 23:31:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18107 to 5752. [2022-01-17 23:31:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 5750 states have (on average 2.7073043478260868) internal successors, (15567), 5751 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 15567 transitions. [2022-01-17 23:31:35,149 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 15567 transitions. Word has length 130 [2022-01-17 23:31:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:35,149 INFO L470 AbstractCegarLoop]: Abstraction has 5752 states and 15567 transitions. [2022-01-17 23:31:35,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 15567 transitions. [2022-01-17 23:31:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:35,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:35,154 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] [2022-01-17 23:31:35,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-01-17 23:31:35,154 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1162712394, now seen corresponding path program 329 times [2022-01-17 23:31:35,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:35,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571893810] [2022-01-17 23:31:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:35,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:35,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:35,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571893810] [2022-01-17 23:31:35,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571893810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:35,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:35,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:31:35,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605825047] [2022-01-17 23:31:35,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:35,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:31:35,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:31:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:31:35,548 INFO L87 Difference]: Start difference. First operand 5752 states and 15567 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:37,018 INFO L93 Difference]: Finished difference Result 16911 states and 45105 transitions. [2022-01-17 23:31:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:37,018 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:37,041 INFO L225 Difference]: With dead ends: 16911 [2022-01-17 23:31:37,041 INFO L226 Difference]: Without dead ends: 16911 [2022-01-17 23:31:37,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:31:37,041 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 1239 mSDsluCounter, 4014 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:37,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 4397 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16911 states. [2022-01-17 23:31:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16911 to 5816. [2022-01-17 23:31:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-17 23:31:37,155 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-17 23:31:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:37,155 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-17 23:31:37,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-17 23:31:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:37,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:37,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:37,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-01-17 23:31:37,161 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:37,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:37,161 INFO L85 PathProgramCache]: Analyzing trace with hash 148174154, now seen corresponding path program 330 times [2022-01-17 23:31:37,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:37,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173817727] [2022-01-17 23:31:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:37,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:37,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:37,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:37,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173817727] [2022-01-17 23:31:37,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173817727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:37,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:37,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:37,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833427909] [2022-01-17 23:31:37,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:37,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:37,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:37,467 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:38,631 INFO L93 Difference]: Finished difference Result 19613 states and 52223 transitions. [2022-01-17 23:31:38,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:38,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:38,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:38,657 INFO L225 Difference]: With dead ends: 19613 [2022-01-17 23:31:38,657 INFO L226 Difference]: Without dead ends: 19613 [2022-01-17 23:31:38,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:38,658 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1112 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:38,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 3234 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19613 states. [2022-01-17 23:31:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19613 to 5832. [2022-01-17 23:31:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 5830 states have (on average 2.7104631217838766) internal successors, (15802), 5831 states have internal predecessors, (15802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 15802 transitions. [2022-01-17 23:31:38,789 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 15802 transitions. Word has length 130 [2022-01-17 23:31:38,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:38,789 INFO L470 AbstractCegarLoop]: Abstraction has 5832 states and 15802 transitions. [2022-01-17 23:31:38,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:38,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 15802 transitions. [2022-01-17 23:31:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:38,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:38,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:38,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-01-17 23:31:38,795 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1475775354, now seen corresponding path program 331 times [2022-01-17 23:31:38,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:38,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383905817] [2022-01-17 23:31:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:38,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383905817] [2022-01-17 23:31:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383905817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:39,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:39,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:39,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606149920] [2022-01-17 23:31:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:39,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:39,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:39,130 INFO L87 Difference]: Start difference. First operand 5832 states and 15802 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:40,917 INFO L93 Difference]: Finished difference Result 17788 states and 47150 transitions. [2022-01-17 23:31:40,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:40,917 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:40,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:40,936 INFO L225 Difference]: With dead ends: 17788 [2022-01-17 23:31:40,936 INFO L226 Difference]: Without dead ends: 17788 [2022-01-17 23:31:40,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:31:40,937 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1193 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:40,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 3180 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2022-01-17 23:31:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 5784. [2022-01-17 23:31:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 2.7085783465928746) internal successors, (15661), 5783 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 15661 transitions. [2022-01-17 23:31:41,036 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 15661 transitions. Word has length 130 [2022-01-17 23:31:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:41,037 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 15661 transitions. [2022-01-17 23:31:41,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 15661 transitions. [2022-01-17 23:31:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:41,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:41,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:41,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-01-17 23:31:41,042 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1033348120, now seen corresponding path program 332 times [2022-01-17 23:31:41,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:41,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760489907] [2022-01-17 23:31:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:41,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:41,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:41,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760489907] [2022-01-17 23:31:41,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760489907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:41,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:41,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:41,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720848485] [2022-01-17 23:31:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:41,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:41,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:41,343 INFO L87 Difference]: Start difference. First operand 5784 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:42,477 INFO L93 Difference]: Finished difference Result 16485 states and 43895 transitions. [2022-01-17 23:31:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:42,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:42,501 INFO L225 Difference]: With dead ends: 16485 [2022-01-17 23:31:42,501 INFO L226 Difference]: Without dead ends: 16485 [2022-01-17 23:31:42,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:42,501 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 1162 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:42,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 2894 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:42,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16485 states. [2022-01-17 23:31:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16485 to 5816. [2022-01-17 23:31:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-17 23:31:42,615 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-17 23:31:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:42,615 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-17 23:31:42,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-17 23:31:42,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:42,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:42,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:42,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-01-17 23:31:42,620 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:42,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:42,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1637669668, now seen corresponding path program 333 times [2022-01-17 23:31:42,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:42,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804187056] [2022-01-17 23:31:42,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:42,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:42,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:42,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804187056] [2022-01-17 23:31:42,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804187056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:42,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:42,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:42,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114397516] [2022-01-17 23:31:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:42,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:42,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:42,944 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:44,701 INFO L93 Difference]: Finished difference Result 17293 states and 45758 transitions. [2022-01-17 23:31:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-17 23:31:44,702 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:44,725 INFO L225 Difference]: With dead ends: 17293 [2022-01-17 23:31:44,725 INFO L226 Difference]: Without dead ends: 17293 [2022-01-17 23:31:44,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-17 23:31:44,725 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 1190 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:44,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 3239 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17293 states. [2022-01-17 23:31:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17293 to 5800. [2022-01-17 23:31:44,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5798 states have (on average 2.709210072438772) internal successors, (15708), 5799 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 15708 transitions. [2022-01-17 23:31:44,839 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 15708 transitions. Word has length 130 [2022-01-17 23:31:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:44,839 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 15708 transitions. [2022-01-17 23:31:44,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 15708 transitions. [2022-01-17 23:31:44,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:44,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:44,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:44,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-01-17 23:31:44,844 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:44,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:44,844 INFO L85 PathProgramCache]: Analyzing trace with hash 220581888, now seen corresponding path program 334 times [2022-01-17 23:31:44,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:44,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242198914] [2022-01-17 23:31:44,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:44,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:45,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:45,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242198914] [2022-01-17 23:31:45,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242198914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:45,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:45,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:31:45,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356745477] [2022-01-17 23:31:45,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:31:45,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:45,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:31:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:31:45,227 INFO L87 Difference]: Start difference. First operand 5800 states and 15708 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:46,685 INFO L93 Difference]: Finished difference Result 16638 states and 44145 transitions. [2022-01-17 23:31:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:46,685 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:46,711 INFO L225 Difference]: With dead ends: 16638 [2022-01-17 23:31:46,711 INFO L226 Difference]: Without dead ends: 16638 [2022-01-17 23:31:46,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:31:46,712 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 1282 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:46,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1282 Valid, 4359 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2022-01-17 23:31:46,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 5816. [2022-01-17 23:31:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-17 23:31:46,840 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-17 23:31:46,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:46,841 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-17 23:31:46,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-17 23:31:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:46,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:46,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:46,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-01-17 23:31:46,846 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:46,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1919221062, now seen corresponding path program 335 times [2022-01-17 23:31:46,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:46,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46700192] [2022-01-17 23:31:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:46,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:47,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:47,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:47,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46700192] [2022-01-17 23:31:47,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46700192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:47,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:47,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:47,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181869767] [2022-01-17 23:31:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:47,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:47,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:47,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:47,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:47,161 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:48,273 INFO L93 Difference]: Finished difference Result 13909 states and 37023 transitions. [2022-01-17 23:31:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:48,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:48,291 INFO L225 Difference]: With dead ends: 13909 [2022-01-17 23:31:48,292 INFO L226 Difference]: Without dead ends: 13909 [2022-01-17 23:31:48,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:48,292 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1160 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:48,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 2824 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13909 states. [2022-01-17 23:31:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13909 to 5736. [2022-01-17 23:31:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.706662016044646) internal successors, (15520), 5735 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15520 transitions. [2022-01-17 23:31:48,391 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15520 transitions. Word has length 130 [2022-01-17 23:31:48,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:48,391 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15520 transitions. [2022-01-17 23:31:48,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15520 transitions. [2022-01-17 23:31:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:48,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:48,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:48,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-01-17 23:31:48,397 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:48,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash -828837720, now seen corresponding path program 336 times [2022-01-17 23:31:48,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:48,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828277187] [2022-01-17 23:31:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:48,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:48,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:48,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828277187] [2022-01-17 23:31:48,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828277187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:48,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:48,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:31:48,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112485996] [2022-01-17 23:31:48,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:48,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:31:48,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:48,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:31:48,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:31:48,796 INFO L87 Difference]: Start difference. First operand 5736 states and 15520 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:50,247 INFO L93 Difference]: Finished difference Result 13799 states and 36818 transitions. [2022-01-17 23:31:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:50,247 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:50,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:50,265 INFO L225 Difference]: With dead ends: 13799 [2022-01-17 23:31:50,265 INFO L226 Difference]: Without dead ends: 13799 [2022-01-17 23:31:50,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:31:50,266 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1145 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:50,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 4438 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:50,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13799 states. [2022-01-17 23:31:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13799 to 5744. [2022-01-17 23:31:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.7075931731104146) internal successors, (15547), 5743 states have internal predecessors, (15547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15547 transitions. [2022-01-17 23:31:50,367 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15547 transitions. Word has length 130 [2022-01-17 23:31:50,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:50,367 INFO L470 AbstractCegarLoop]: Abstraction has 5744 states and 15547 transitions. [2022-01-17 23:31:50,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15547 transitions. [2022-01-17 23:31:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:50,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:50,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:50,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-01-17 23:31:50,373 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:50,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1104302444, now seen corresponding path program 337 times [2022-01-17 23:31:50,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:50,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425756363] [2022-01-17 23:31:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:50,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:50,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:50,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425756363] [2022-01-17 23:31:50,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425756363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:50,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:50,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:50,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144436946] [2022-01-17 23:31:50,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:50,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:50,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:50,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:50,710 INFO L87 Difference]: Start difference. First operand 5744 states and 15547 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:51,887 INFO L93 Difference]: Finished difference Result 13487 states and 35912 transitions. [2022-01-17 23:31:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:51,888 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:51,906 INFO L225 Difference]: With dead ends: 13487 [2022-01-17 23:31:51,906 INFO L226 Difference]: Without dead ends: 13487 [2022-01-17 23:31:51,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:51,906 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1095 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:51,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 3113 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13487 states. [2022-01-17 23:31:51,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13487 to 5760. [2022-01-17 23:31:51,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5758 states have (on average 2.709447724904481) internal successors, (15601), 5759 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 15601 transitions. [2022-01-17 23:31:52,006 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 15601 transitions. Word has length 130 [2022-01-17 23:31:52,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:52,006 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 15601 transitions. [2022-01-17 23:31:52,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 15601 transitions. [2022-01-17 23:31:52,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:52,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:52,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:52,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-01-17 23:31:52,012 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:52,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:52,012 INFO L85 PathProgramCache]: Analyzing trace with hash 89764204, now seen corresponding path program 338 times [2022-01-17 23:31:52,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:52,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458927947] [2022-01-17 23:31:52,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:52,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:52,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:52,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458927947] [2022-01-17 23:31:52,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458927947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:52,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:52,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:31:52,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493232119] [2022-01-17 23:31:52,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:52,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:31:52,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:31:52,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:31:52,329 INFO L87 Difference]: Start difference. First operand 5760 states and 15601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:53,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:53,435 INFO L93 Difference]: Finished difference Result 13175 states and 35006 transitions. [2022-01-17 23:31:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:31:53,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:53,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:53,452 INFO L225 Difference]: With dead ends: 13175 [2022-01-17 23:31:53,452 INFO L226 Difference]: Without dead ends: 13175 [2022-01-17 23:31:53,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:31:53,452 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1215 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:53,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 2705 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:31:53,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13175 states. [2022-01-17 23:31:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13175 to 5768. [2022-01-17 23:31:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.71037114117239) internal successors, (15628), 5767 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15628 transitions. [2022-01-17 23:31:53,546 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15628 transitions. Word has length 130 [2022-01-17 23:31:53,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:53,546 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15628 transitions. [2022-01-17 23:31:53,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15628 transitions. [2022-01-17 23:31:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:53,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:53,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:53,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-01-17 23:31:53,552 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1534185304, now seen corresponding path program 339 times [2022-01-17 23:31:53,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:53,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110022512] [2022-01-17 23:31:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:53,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:53,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:53,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110022512] [2022-01-17 23:31:53,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110022512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:53,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:53,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:31:53,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052922217] [2022-01-17 23:31:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:53,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:31:53,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:53,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:31:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:31:53,892 INFO L87 Difference]: Start difference. First operand 5768 states and 15628 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:55,434 INFO L93 Difference]: Finished difference Result 11302 states and 29805 transitions. [2022-01-17 23:31:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:31:55,435 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:55,448 INFO L225 Difference]: With dead ends: 11302 [2022-01-17 23:31:55,448 INFO L226 Difference]: Without dead ends: 11302 [2022-01-17 23:31:55,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-17 23:31:55,449 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1190 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:55,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 2928 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-01-17 23:31:55,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5578. [2022-01-17 23:31:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-17 23:31:55,529 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-17 23:31:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:55,529 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-17 23:31:55,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-17 23:31:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:55,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:55,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:55,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-01-17 23:31:55,534 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:55,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 666143600, now seen corresponding path program 340 times [2022-01-17 23:31:55,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:55,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132153048] [2022-01-17 23:31:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:55,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:55,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:55,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132153048] [2022-01-17 23:31:55,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132153048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:55,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:55,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:31:55,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144664351] [2022-01-17 23:31:55,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:55,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:31:55,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:55,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:31:55,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:31:55,947 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:57,294 INFO L93 Difference]: Finished difference Result 6442 states and 17443 transitions. [2022-01-17 23:31:57,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:57,295 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:57,301 INFO L225 Difference]: With dead ends: 6442 [2022-01-17 23:31:57,302 INFO L226 Difference]: Without dead ends: 6442 [2022-01-17 23:31:57,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=398, Invalid=1324, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:31:57,302 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 990 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 3758 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:57,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 3758 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:31:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2022-01-17 23:31:57,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5578. [2022-01-17 23:31:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-17 23:31:57,357 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-17 23:31:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:57,357 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-17 23:31:57,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:57,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-17 23:31:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:57,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:57,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:57,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-01-17 23:31:57,362 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:57,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:57,362 INFO L85 PathProgramCache]: Analyzing trace with hash -818818260, now seen corresponding path program 341 times [2022-01-17 23:31:57,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:57,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821280895] [2022-01-17 23:31:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:57,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:57,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:57,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:57,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821280895] [2022-01-17 23:31:57,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821280895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:57,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:57,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:31:57,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093204478] [2022-01-17 23:31:57,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:57,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:31:57,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:57,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:31:57,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:31:57,772 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:59,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:31:59,175 INFO L93 Difference]: Finished difference Result 10188 states and 27545 transitions. [2022-01-17 23:31:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:31:59,176 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:31:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:31:59,190 INFO L225 Difference]: With dead ends: 10188 [2022-01-17 23:31:59,190 INFO L226 Difference]: Without dead ends: 10188 [2022-01-17 23:31:59,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:31:59,190 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 914 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:31:59,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 4084 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:31:59,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10188 states. [2022-01-17 23:31:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10188 to 5594. [2022-01-17 23:31:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5592 states have (on average 2.708154506437768) internal successors, (15144), 5593 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 15144 transitions. [2022-01-17 23:31:59,276 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 15144 transitions. Word has length 130 [2022-01-17 23:31:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:31:59,276 INFO L470 AbstractCegarLoop]: Abstraction has 5594 states and 15144 transitions. [2022-01-17 23:31:59,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:31:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 15144 transitions. [2022-01-17 23:31:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:31:59,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:31:59,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:31:59,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-01-17 23:31:59,282 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:31:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:31:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1264559248, now seen corresponding path program 342 times [2022-01-17 23:31:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:31:59,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465831340] [2022-01-17 23:31:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:31:59,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:31:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:31:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:31:59,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:31:59,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465831340] [2022-01-17 23:31:59,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465831340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:31:59,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:31:59,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:31:59,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421306328] [2022-01-17 23:31:59,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:31:59,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:31:59,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:31:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:31:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:31:59,834 INFO L87 Difference]: Start difference. First operand 5594 states and 15144 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:02,711 INFO L93 Difference]: Finished difference Result 10177 states and 27002 transitions. [2022-01-17 23:32:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:02,724 INFO L225 Difference]: With dead ends: 10177 [2022-01-17 23:32:02,724 INFO L226 Difference]: Without dead ends: 10177 [2022-01-17 23:32:02,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=580, Invalid=1582, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:02,725 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1393 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:02,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 3860 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-17 23:32:02,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-01-17 23:32:02,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 5934. [2022-01-17 23:32:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 5932 states have (on average 2.7198246797033043) internal successors, (16134), 5933 states have internal predecessors, (16134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 16134 transitions. [2022-01-17 23:32:02,814 INFO L78 Accepts]: Start accepts. Automaton has 5934 states and 16134 transitions. Word has length 130 [2022-01-17 23:32:02,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:02,815 INFO L470 AbstractCegarLoop]: Abstraction has 5934 states and 16134 transitions. [2022-01-17 23:32:02,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5934 states and 16134 transitions. [2022-01-17 23:32:02,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:02,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:02,820 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] [2022-01-17 23:32:02,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-01-17 23:32:02,821 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:02,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1610638736, now seen corresponding path program 343 times [2022-01-17 23:32:02,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:02,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558255847] [2022-01-17 23:32:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:02,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:03,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:03,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558255847] [2022-01-17 23:32:03,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558255847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:03,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:03,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:03,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483601366] [2022-01-17 23:32:03,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:03,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:03,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:03,410 INFO L87 Difference]: Start difference. First operand 5934 states and 16134 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:06,256 INFO L93 Difference]: Finished difference Result 9806 states and 26239 transitions. [2022-01-17 23:32:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:32:06,256 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:06,268 INFO L225 Difference]: With dead ends: 9806 [2022-01-17 23:32:06,268 INFO L226 Difference]: Without dead ends: 9806 [2022-01-17 23:32:06,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=563, Invalid=1507, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:32:06,269 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1176 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:06,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 4168 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:06,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9806 states. [2022-01-17 23:32:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9806 to 6284. [2022-01-17 23:32:06,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 6282 states have (on average 2.7354345749761224) internal successors, (17184), 6283 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 17184 transitions. [2022-01-17 23:32:06,357 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 17184 transitions. Word has length 130 [2022-01-17 23:32:06,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:06,357 INFO L470 AbstractCegarLoop]: Abstraction has 6284 states and 17184 transitions. [2022-01-17 23:32:06,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:06,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 17184 transitions. [2022-01-17 23:32:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:06,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:06,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:06,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-01-17 23:32:06,364 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:06,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:06,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1055504190, now seen corresponding path program 344 times [2022-01-17 23:32:06,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:06,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779672192] [2022-01-17 23:32:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:06,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:06,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:06,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779672192] [2022-01-17 23:32:06,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779672192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:06,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:06,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:32:06,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760162251] [2022-01-17 23:32:06,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:06,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:32:06,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:06,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:32:06,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:32:06,736 INFO L87 Difference]: Start difference. First operand 6284 states and 17184 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:08,103 INFO L93 Difference]: Finished difference Result 9442 states and 25469 transitions. [2022-01-17 23:32:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:32:08,104 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:08,115 INFO L225 Difference]: With dead ends: 9442 [2022-01-17 23:32:08,115 INFO L226 Difference]: Without dead ends: 9442 [2022-01-17 23:32:08,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=962, Unknown=0, NotChecked=0, Total=1332 [2022-01-17 23:32:08,116 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1113 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:08,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 2801 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2022-01-17 23:32:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 6230. [2022-01-17 23:32:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6230 states, 6228 states have (on average 2.732980089916506) internal successors, (17021), 6229 states have internal predecessors, (17021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6230 states to 6230 states and 17021 transitions. [2022-01-17 23:32:08,198 INFO L78 Accepts]: Start accepts. Automaton has 6230 states and 17021 transitions. Word has length 130 [2022-01-17 23:32:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:08,198 INFO L470 AbstractCegarLoop]: Abstraction has 6230 states and 17021 transitions. [2022-01-17 23:32:08,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 6230 states and 17021 transitions. [2022-01-17 23:32:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:08,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:08,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:08,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-01-17 23:32:08,204 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:08,205 INFO L85 PathProgramCache]: Analyzing trace with hash -202080450, now seen corresponding path program 345 times [2022-01-17 23:32:08,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:08,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980036248] [2022-01-17 23:32:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:08,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:08,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:08,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980036248] [2022-01-17 23:32:08,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980036248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:08,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:08,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-17 23:32:08,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180708339] [2022-01-17 23:32:08,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:08,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-17 23:32:08,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:08,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-17 23:32:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-01-17 23:32:08,792 INFO L87 Difference]: Start difference. First operand 6230 states and 17021 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:12,115 INFO L93 Difference]: Finished difference Result 9423 states and 25013 transitions. [2022-01-17 23:32:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-17 23:32:12,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:12,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:12,129 INFO L225 Difference]: With dead ends: 9423 [2022-01-17 23:32:12,129 INFO L226 Difference]: Without dead ends: 9423 [2022-01-17 23:32:12,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=654, Invalid=2102, Unknown=0, NotChecked=0, Total=2756 [2022-01-17 23:32:12,130 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1164 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:12,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 4214 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9423 states. [2022-01-17 23:32:12,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9423 to 6250. [2022-01-17 23:32:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 6248 states have (on average 2.732234314980794) internal successors, (17071), 6249 states have internal predecessors, (17071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 17071 transitions. [2022-01-17 23:32:12,235 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 17071 transitions. Word has length 130 [2022-01-17 23:32:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:12,235 INFO L470 AbstractCegarLoop]: Abstraction has 6250 states and 17071 transitions. [2022-01-17 23:32:12,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 17071 transitions. [2022-01-17 23:32:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:12,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:12,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:12,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-01-17 23:32:12,243 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:12,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash 805729150, now seen corresponding path program 346 times [2022-01-17 23:32:12,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:12,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703173368] [2022-01-17 23:32:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:12,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:12,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703173368] [2022-01-17 23:32:12,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703173368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:12,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:12,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:32:12,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155037166] [2022-01-17 23:32:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:12,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:32:12,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:32:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:32:12,687 INFO L87 Difference]: Start difference. First operand 6250 states and 17071 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:14,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:14,104 INFO L93 Difference]: Finished difference Result 9174 states and 24673 transitions. [2022-01-17 23:32:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:32:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:14,117 INFO L225 Difference]: With dead ends: 9174 [2022-01-17 23:32:14,117 INFO L226 Difference]: Without dead ends: 9174 [2022-01-17 23:32:14,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:32:14,118 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 981 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:14,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 4133 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:14,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-01-17 23:32:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 6126. [2022-01-17 23:32:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6126 states, 6124 states have (on average 2.727792292619203) internal successors, (16705), 6125 states have internal predecessors, (16705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:14,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6126 states to 6126 states and 16705 transitions. [2022-01-17 23:32:14,216 INFO L78 Accepts]: Start accepts. Automaton has 6126 states and 16705 transitions. Word has length 130 [2022-01-17 23:32:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:14,216 INFO L470 AbstractCegarLoop]: Abstraction has 6126 states and 16705 transitions. [2022-01-17 23:32:14,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6126 states and 16705 transitions. [2022-01-17 23:32:14,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:14,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:14,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:14,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-01-17 23:32:14,222 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash -208809090, now seen corresponding path program 347 times [2022-01-17 23:32:14,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:14,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150739472] [2022-01-17 23:32:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:14,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:14,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:14,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150739472] [2022-01-17 23:32:14,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150739472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:14,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:14,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:32:14,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074612095] [2022-01-17 23:32:14,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:14,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:32:14,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:32:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:32:14,572 INFO L87 Difference]: Start difference. First operand 6126 states and 16705 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:15,916 INFO L93 Difference]: Finished difference Result 8862 states and 23767 transitions. [2022-01-17 23:32:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:32:15,917 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:15,928 INFO L225 Difference]: With dead ends: 8862 [2022-01-17 23:32:15,928 INFO L226 Difference]: Without dead ends: 8862 [2022-01-17 23:32:15,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=364, Invalid=896, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:32:15,928 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1177 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:15,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2432 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2022-01-17 23:32:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 6064. [2022-01-17 23:32:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 6062 states have (on average 2.7255031342791156) internal successors, (16522), 6063 states have internal predecessors, (16522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 16522 transitions. [2022-01-17 23:32:16,006 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 16522 transitions. Word has length 130 [2022-01-17 23:32:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:16,006 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 16522 transitions. [2022-01-17 23:32:16,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 16522 transitions. [2022-01-17 23:32:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:16,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:16,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:16,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-01-17 23:32:16,033 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:16,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1832758598, now seen corresponding path program 348 times [2022-01-17 23:32:16,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:16,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701152205] [2022-01-17 23:32:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:16,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:16,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:16,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701152205] [2022-01-17 23:32:16,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701152205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:16,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:16,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-17 23:32:16,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422416906] [2022-01-17 23:32:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:16,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-17 23:32:16,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-17 23:32:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:32:16,387 INFO L87 Difference]: Start difference. First operand 6064 states and 16522 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:17,748 INFO L93 Difference]: Finished difference Result 7619 states and 20260 transitions. [2022-01-17 23:32:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-17 23:32:17,748 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:17,758 INFO L225 Difference]: With dead ends: 7619 [2022-01-17 23:32:17,758 INFO L226 Difference]: Without dead ends: 7619 [2022-01-17 23:32:17,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=364, Invalid=896, Unknown=0, NotChecked=0, Total=1260 [2022-01-17 23:32:17,758 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1191 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:17,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 2446 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-01-17 23:32:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 5578. [2022-01-17 23:32:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:17,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-17 23:32:17,824 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-17 23:32:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:17,824 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-17 23:32:17,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-17 23:32:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:17,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:17,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:17,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-01-17 23:32:17,830 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1252197566, now seen corresponding path program 349 times [2022-01-17 23:32:17,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:17,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181534061] [2022-01-17 23:32:17,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:17,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:18,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:18,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:18,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181534061] [2022-01-17 23:32:18,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181534061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:18,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:18,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:32:18,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884315911] [2022-01-17 23:32:18,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:18,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:32:18,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:18,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:32:18,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:32:18,168 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:19,286 INFO L93 Difference]: Finished difference Result 9468 states and 25088 transitions. [2022-01-17 23:32:19,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:32:19,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:19,297 INFO L225 Difference]: With dead ends: 9468 [2022-01-17 23:32:19,297 INFO L226 Difference]: Without dead ends: 9468 [2022-01-17 23:32:19,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:32:19,298 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1010 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:19,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2993 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9468 states. [2022-01-17 23:32:19,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9468 to 5482. [2022-01-17 23:32:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5482 states, 5480 states have (on average 2.7034671532846715) internal successors, (14815), 5481 states have internal predecessors, (14815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 14815 transitions. [2022-01-17 23:32:19,370 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 14815 transitions. Word has length 130 [2022-01-17 23:32:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:19,370 INFO L470 AbstractCegarLoop]: Abstraction has 5482 states and 14815 transitions. [2022-01-17 23:32:19,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 14815 transitions. [2022-01-17 23:32:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:19,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:19,375 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] [2022-01-17 23:32:19,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-01-17 23:32:19,375 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:19,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:19,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1697938554, now seen corresponding path program 350 times [2022-01-17 23:32:19,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:19,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022169520] [2022-01-17 23:32:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:19,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:19,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:19,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022169520] [2022-01-17 23:32:19,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022169520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:19,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:19,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:32:19,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217615299] [2022-01-17 23:32:19,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:19,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:32:19,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:19,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:32:19,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:32:19,752 INFO L87 Difference]: Start difference. First operand 5482 states and 14815 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:21,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:21,345 INFO L93 Difference]: Finished difference Result 12953 states and 34444 transitions. [2022-01-17 23:32:21,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:32:21,346 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:21,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:21,363 INFO L225 Difference]: With dead ends: 12953 [2022-01-17 23:32:21,364 INFO L226 Difference]: Without dead ends: 12953 [2022-01-17 23:32:21,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=411, Invalid=1071, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:32:21,364 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1143 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:21,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 3388 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12953 states. [2022-01-17 23:32:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12953 to 5498. [2022-01-17 23:32:21,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 5496 states have (on average 2.7041484716157207) internal successors, (14862), 5497 states have internal predecessors, (14862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 14862 transitions. [2022-01-17 23:32:21,455 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 14862 transitions. Word has length 130 [2022-01-17 23:32:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:21,456 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 14862 transitions. [2022-01-17 23:32:21,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 14862 transitions. [2022-01-17 23:32:21,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:21,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:21,461 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] [2022-01-17 23:32:21,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-01-17 23:32:21,461 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:21,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1339444102, now seen corresponding path program 351 times [2022-01-17 23:32:21,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:21,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495467311] [2022-01-17 23:32:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:21,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:22,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:22,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495467311] [2022-01-17 23:32:22,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495467311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:22,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:22,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-17 23:32:22,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707066295] [2022-01-17 23:32:22,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:22,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-17 23:32:22,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-17 23:32:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2022-01-17 23:32:22,229 INFO L87 Difference]: Start difference. First operand 5498 states and 14862 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:26,061 INFO L93 Difference]: Finished difference Result 13002 states and 34149 transitions. [2022-01-17 23:32:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-17 23:32:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:26,079 INFO L225 Difference]: With dead ends: 13002 [2022-01-17 23:32:26,079 INFO L226 Difference]: Without dead ends: 13002 [2022-01-17 23:32:26,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=804, Invalid=2856, Unknown=0, NotChecked=0, Total=3660 [2022-01-17 23:32:26,080 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1664 mSDsluCounter, 5270 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 5523 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:26,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1664 Valid, 5523 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-17 23:32:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13002 states. [2022-01-17 23:32:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13002 to 5768. [2022-01-17 23:32:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.712799167533819) internal successors, (15642), 5767 states have internal predecessors, (15642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15642 transitions. [2022-01-17 23:32:26,175 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15642 transitions. Word has length 130 [2022-01-17 23:32:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:26,175 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15642 transitions. [2022-01-17 23:32:26,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15642 transitions. [2022-01-17 23:32:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:26,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:26,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:26,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-01-17 23:32:26,181 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 993364614, now seen corresponding path program 352 times [2022-01-17 23:32:26,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:26,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723590946] [2022-01-17 23:32:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:26,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:26,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:26,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723590946] [2022-01-17 23:32:26,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723590946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:26,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:26,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:32:26,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679268196] [2022-01-17 23:32:26,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:26,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:32:26,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:26,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:32:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:32:26,502 INFO L87 Difference]: Start difference. First operand 5768 states and 15642 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:27,650 INFO L93 Difference]: Finished difference Result 12741 states and 33780 transitions. [2022-01-17 23:32:27,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:32:27,651 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:27,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:27,666 INFO L225 Difference]: With dead ends: 12741 [2022-01-17 23:32:27,666 INFO L226 Difference]: Without dead ends: 12741 [2022-01-17 23:32:27,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:32:27,666 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1101 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:27,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 3111 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2022-01-17 23:32:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 5660. [2022-01-17 23:32:27,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.706963591375044) internal successors, (15316), 5659 states have internal predecessors, (15316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15316 transitions. [2022-01-17 23:32:27,752 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15316 transitions. Word has length 130 [2022-01-17 23:32:27,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:27,753 INFO L470 AbstractCegarLoop]: Abstraction has 5660 states and 15316 transitions. [2022-01-17 23:32:27,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15316 transitions. [2022-01-17 23:32:27,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:27,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:27,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:27,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-01-17 23:32:27,758 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:27,758 INFO L85 PathProgramCache]: Analyzing trace with hash 246213254, now seen corresponding path program 353 times [2022-01-17 23:32:27,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:27,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406740850] [2022-01-17 23:32:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:27,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:28,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:28,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406740850] [2022-01-17 23:32:28,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406740850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:28,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:28,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:32:28,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328133684] [2022-01-17 23:32:28,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:28,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:32:28,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:28,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:32:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:32:28,157 INFO L87 Difference]: Start difference. First operand 5660 states and 15316 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:29,674 INFO L93 Difference]: Finished difference Result 12445 states and 32914 transitions. [2022-01-17 23:32:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:32:29,674 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:29,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:29,690 INFO L225 Difference]: With dead ends: 12445 [2022-01-17 23:32:29,690 INFO L226 Difference]: Without dead ends: 12445 [2022-01-17 23:32:29,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=410, Invalid=1072, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:32:29,690 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1221 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:29,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 2752 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12445 states. [2022-01-17 23:32:29,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12445 to 5598. [2022-01-17 23:32:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5596 states have (on average 2.704253037884203) internal successors, (15133), 5597 states have internal predecessors, (15133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 15133 transitions. [2022-01-17 23:32:29,778 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 15133 transitions. Word has length 130 [2022-01-17 23:32:29,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:29,779 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 15133 transitions. [2022-01-17 23:32:29,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 15133 transitions. [2022-01-17 23:32:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:29,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:29,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:29,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-01-17 23:32:29,784 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:29,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1209222210, now seen corresponding path program 354 times [2022-01-17 23:32:29,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:29,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432754785] [2022-01-17 23:32:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:29,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:30,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:30,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:30,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432754785] [2022-01-17 23:32:30,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432754785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:30,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:30,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:32:30,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749941463] [2022-01-17 23:32:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:30,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:32:30,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:32:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:32:30,154 INFO L87 Difference]: Start difference. First operand 5598 states and 15133 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:31,736 INFO L93 Difference]: Finished difference Result 10572 states and 27713 transitions. [2022-01-17 23:32:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:32:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:31,751 INFO L225 Difference]: With dead ends: 10572 [2022-01-17 23:32:31,751 INFO L226 Difference]: Without dead ends: 10572 [2022-01-17 23:32:31,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=411, Invalid=1071, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:32:31,751 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1199 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:31,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 3020 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10572 states. [2022-01-17 23:32:31,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10572 to 5466. [2022-01-17 23:32:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.7027818448023426) internal successors, (14768), 5465 states have internal predecessors, (14768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14768 transitions. [2022-01-17 23:32:31,841 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14768 transitions. Word has length 130 [2022-01-17 23:32:31,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:31,841 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14768 transitions. [2022-01-17 23:32:31,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:31,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14768 transitions. [2022-01-17 23:32:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:31,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:31,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:31,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-01-17 23:32:31,847 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1382464876, now seen corresponding path program 355 times [2022-01-17 23:32:31,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:31,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145561966] [2022-01-17 23:32:31,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:31,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:32,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145561966] [2022-01-17 23:32:32,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145561966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:32,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:32,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:32,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208766304] [2022-01-17 23:32:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:32,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:32,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:32,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:32,458 INFO L87 Difference]: Start difference. First operand 5466 states and 14768 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:35,391 INFO L93 Difference]: Finished difference Result 12252 states and 32123 transitions. [2022-01-17 23:32:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-17 23:32:35,392 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:35,404 INFO L225 Difference]: With dead ends: 12252 [2022-01-17 23:32:35,404 INFO L226 Difference]: Without dead ends: 12252 [2022-01-17 23:32:35,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=579, Invalid=1583, Unknown=0, NotChecked=0, Total=2162 [2022-01-17 23:32:35,404 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1482 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:35,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 3868 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12252 states. [2022-01-17 23:32:35,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12252 to 5736. [2022-01-17 23:32:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.711545169166376) internal successors, (15548), 5735 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:35,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15548 transitions. [2022-01-17 23:32:35,479 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15548 transitions. Word has length 130 [2022-01-17 23:32:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:35,479 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15548 transitions. [2022-01-17 23:32:35,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:35,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15548 transitions. [2022-01-17 23:32:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:35,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:35,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:35,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-01-17 23:32:35,484 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1036385388, now seen corresponding path program 356 times [2022-01-17 23:32:35,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:35,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501747987] [2022-01-17 23:32:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:35,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:35,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:35,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501747987] [2022-01-17 23:32:35,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501747987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:35,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:35,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:32:35,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241998729] [2022-01-17 23:32:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:35,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:32:35,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:32:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:32:35,882 INFO L87 Difference]: Start difference. First operand 5736 states and 15548 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:37,323 INFO L93 Difference]: Finished difference Result 9493 states and 25154 transitions. [2022-01-17 23:32:37,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:32:37,323 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:37,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:37,335 INFO L225 Difference]: With dead ends: 9493 [2022-01-17 23:32:37,335 INFO L226 Difference]: Without dead ends: 9493 [2022-01-17 23:32:37,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:32:37,335 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 933 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:37,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 4453 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:37,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9493 states. [2022-01-17 23:32:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9493 to 5640. [2022-01-17 23:32:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 5638 states have (on average 2.7076977651649523) internal successors, (15266), 5639 states have internal predecessors, (15266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 15266 transitions. [2022-01-17 23:32:37,411 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 15266 transitions. Word has length 130 [2022-01-17 23:32:37,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:37,411 INFO L470 AbstractCegarLoop]: Abstraction has 5640 states and 15266 transitions. [2022-01-17 23:32:37,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 15266 transitions. [2022-01-17 23:32:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:37,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:37,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:37,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-01-17 23:32:37,417 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -221199252, now seen corresponding path program 357 times [2022-01-17 23:32:37,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:37,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653152322] [2022-01-17 23:32:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:37,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:37,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:37,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653152322] [2022-01-17 23:32:37,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653152322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:37,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:37,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-17 23:32:37,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291288462] [2022-01-17 23:32:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:37,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-17 23:32:37,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:37,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-17 23:32:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-17 23:32:37,968 INFO L87 Difference]: Start difference. First operand 5640 states and 15266 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:40,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:40,868 INFO L93 Difference]: Finished difference Result 12301 states and 32458 transitions. [2022-01-17 23:32:40,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-17 23:32:40,869 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:40,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:40,885 INFO L225 Difference]: With dead ends: 12301 [2022-01-17 23:32:40,885 INFO L226 Difference]: Without dead ends: 12301 [2022-01-17 23:32:40,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2022-01-17 23:32:40,885 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1212 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:40,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 4070 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-17 23:32:40,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12301 states. [2022-01-17 23:32:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12301 to 5990. [2022-01-17 23:32:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.7247828991315965) internal successors, (16316), 5989 states have internal predecessors, (16316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16316 transitions. [2022-01-17 23:32:41,015 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16316 transitions. Word has length 130 [2022-01-17 23:32:41,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:41,015 INFO L470 AbstractCegarLoop]: Abstraction has 5990 states and 16316 transitions. [2022-01-17 23:32:41,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16316 transitions. [2022-01-17 23:32:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:41,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:41,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:41,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-01-17 23:32:41,021 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:41,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1850023622, now seen corresponding path program 358 times [2022-01-17 23:32:41,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:41,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510374529] [2022-01-17 23:32:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:41,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:41,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:41,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510374529] [2022-01-17 23:32:41,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510374529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:41,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:41,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-17 23:32:41,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573354669] [2022-01-17 23:32:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:41,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-17 23:32:41,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-17 23:32:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-17 23:32:41,367 INFO L87 Difference]: Start difference. First operand 5990 states and 16316 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:42,896 INFO L93 Difference]: Finished difference Result 11781 states and 31158 transitions. [2022-01-17 23:32:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-17 23:32:42,897 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:42,911 INFO L225 Difference]: With dead ends: 11781 [2022-01-17 23:32:42,912 INFO L226 Difference]: Without dead ends: 11781 [2022-01-17 23:32:42,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2022-01-17 23:32:42,912 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1086 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:42,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 2811 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-17 23:32:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11781 states. [2022-01-17 23:32:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11781 to 5882. [2022-01-17 23:32:42,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5880 states have (on average 2.7193877551020407) internal successors, (15990), 5881 states have internal predecessors, (15990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 15990 transitions. [2022-01-17 23:32:43,003 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 15990 transitions. Word has length 130 [2022-01-17 23:32:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:43,003 INFO L470 AbstractCegarLoop]: Abstraction has 5882 states and 15990 transitions. [2022-01-17 23:32:43,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 15990 transitions. [2022-01-17 23:32:43,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:43,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:43,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:32:43,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-01-17 23:32:43,009 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:43,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1034543290, now seen corresponding path program 359 times [2022-01-17 23:32:43,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:43,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822279168] [2022-01-17 23:32:43,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:43,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:43,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:43,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822279168] [2022-01-17 23:32:43,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822279168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:43,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:43,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-17 23:32:43,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736064735] [2022-01-17 23:32:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:43,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-17 23:32:43,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:43,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-17 23:32:43,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-17 23:32:43,323 INFO L87 Difference]: Start difference. First operand 5882 states and 15990 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:44,440 INFO L93 Difference]: Finished difference Result 11485 states and 30292 transitions. [2022-01-17 23:32:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:32:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:44,454 INFO L225 Difference]: With dead ends: 11485 [2022-01-17 23:32:44,454 INFO L226 Difference]: Without dead ends: 11485 [2022-01-17 23:32:44,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-17 23:32:44,455 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1126 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:44,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 2668 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-17 23:32:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11485 states. [2022-01-17 23:32:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11485 to 5820. [2022-01-17 23:32:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5820 states, 5818 states have (on average 2.7169130285321414) internal successors, (15807), 5819 states have internal predecessors, (15807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5820 states to 5820 states and 15807 transitions. [2022-01-17 23:32:44,537 INFO L78 Accepts]: Start accepts. Automaton has 5820 states and 15807 transitions. Word has length 130 [2022-01-17 23:32:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:32:44,537 INFO L470 AbstractCegarLoop]: Abstraction has 5820 states and 15807 transitions. [2022-01-17 23:32:44,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5820 states and 15807 transitions. [2022-01-17 23:32:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-17 23:32:44,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:32:44,542 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, 1] [2022-01-17 23:32:44,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-01-17 23:32:44,542 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-17 23:32:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:32:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash -589406218, now seen corresponding path program 360 times [2022-01-17 23:32:44,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:32:44,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2573542] [2022-01-17 23:32:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:32:44,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:32:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:32:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:32:44,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:32:44,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2573542] [2022-01-17 23:32:44,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2573542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:32:44,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:32:44,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-17 23:32:44,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130506043] [2022-01-17 23:32:44,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:32:44,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-17 23:32:44,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:32:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-17 23:32:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-17 23:32:44,931 INFO L87 Difference]: Start difference. First operand 5820 states and 15807 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:32:46,407 INFO L93 Difference]: Finished difference Result 10242 states and 26785 transitions. [2022-01-17 23:32:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-17 23:32:46,407 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-17 23:32:46,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:32:46,420 INFO L225 Difference]: With dead ends: 10242 [2022-01-17 23:32:46,420 INFO L226 Difference]: Without dead ends: 10242 [2022-01-17 23:32:46,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2022-01-17 23:32:46,420 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1074 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-17 23:32:46,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 4506 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-17 23:32:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10242 states. Received shutdown request... [2022-01-17 23:32:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10242 to 5354. [2022-01-17 23:32:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 2.6978699551569507) internal successors, (14439), 5353 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:32:46,522 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-17 23:32:46,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-01-17 23:32:46,522 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2022-01-17 23:32:46,523 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 8 remaining) [2022-01-17 23:32:46,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 8 remaining) [2022-01-17 23:32:46,526 INFO L732 BasicCegarLoop]: Path program histogram: [360, 1, 1, 1, 1, 1] [2022-01-17 23:32:46,527 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:32:46,527 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:32:46,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:32:46 BasicIcfg [2022-01-17 23:32:46,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:32:46,528 INFO L158 Benchmark]: Toolchain (without parser) took 717882.54ms. Allocated memory was 406.8MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 346.3MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 406.8MB. Free memory is still 366.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.52ms. Allocated memory was 406.8MB in the beginning and 539.0MB in the end (delta: 132.1MB). Free memory was 346.1MB in the beginning and 465.4MB in the end (delta: -119.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.56ms. Allocated memory is still 539.0MB. Free memory was 465.4MB in the beginning and 461.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: Boogie Preprocessor took 39.58ms. Allocated memory is still 539.0MB. Free memory was 461.2MB in the beginning and 459.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: RCFGBuilder took 467.82ms. Allocated memory is still 539.0MB. Free memory was 459.1MB in the beginning and 436.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2022-01-17 23:32:46,528 INFO L158 Benchmark]: TraceAbstraction took 716666.87ms. Allocated memory was 539.0MB in the beginning and 2.1GB in the end (delta: 1.5GB). Free memory was 435.0MB in the beginning and 1.9GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2022-01-17 23:32:46,529 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 406.8MB. Free memory is still 366.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 623.52ms. Allocated memory was 406.8MB in the beginning and 539.0MB in the end (delta: 132.1MB). Free memory was 346.1MB in the beginning and 465.4MB in the end (delta: -119.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 71.56ms. Allocated memory is still 539.0MB. Free memory was 465.4MB in the beginning and 461.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.58ms. Allocated memory is still 539.0MB. Free memory was 461.2MB in the beginning and 459.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 467.82ms. Allocated memory is still 539.0MB. Free memory was 459.1MB in the beginning and 436.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 716666.87ms. Allocated memory was 539.0MB in the beginning and 2.1GB in the end (delta: 1.5GB). Free memory was 435.0MB in the beginning and 1.9GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 204 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 716.6s, OverallIterations: 365, TraceHistogramMax: 1, PathProgramHistogramMax: 360, EmptinessCheckTime: 2.4s, AutomataDifference: 537.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460244 SdHoareTripleChecker+Valid, 134.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460244 mSDsluCounter, 1120092 SdHoareTripleChecker+Invalid, 114.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 989252 mSDsCounter, 8246 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269829 IncrementalHoareTripleChecker+Invalid, 278075 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8246 mSolverCounterUnsat, 149350 mSDtfsCounter, 269829 mSolverCounterSat, 2.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14536 GetRequests, 1677 SyntacticMatches, 38 SemanticMatches, 12821 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50725 ImplicationChecksByTransitivity, 427.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11323occurred in iteration=0, InterpolantAutomatonStates: 7627, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 45.0s AutomataMinimizationTime, 365 MinimizatonAttempts, 3523287 StatesRemovedByMinimization, 363 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 120.8s InterpolantComputationTime, 47154 NumberOfCodeBlocks, 47154 NumberOfCodeBlocksAsserted, 365 NumberOfCheckSat, 46789 ConstructedInterpolants, 0 QuantifiedInterpolants, 392574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 365 InterpolantComputations, 365 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