/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-22 00:23:21,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-22 00:23:21,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-22 00:23:21,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-22 00:23:21,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-22 00:23:21,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-22 00:23:21,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-22 00:23:21,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-22 00:23:21,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-22 00:23:21,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-22 00:23:21,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-22 00:23:21,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-22 00:23:21,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-22 00:23:21,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-22 00:23:21,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-22 00:23:21,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-22 00:23:21,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-22 00:23:21,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-22 00:23:21,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-22 00:23:21,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-22 00:23:21,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-22 00:23:21,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-22 00:23:21,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-22 00:23:21,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-22 00:23:21,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-22 00:23:21,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-22 00:23:21,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-22 00:23:21,588 INFO L138 SettingsManager]: * Use SBE=true [2021-05-22 00:23:21,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-22 00:23:21,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-22 00:23:21,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-22 00:23:21,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-22 00:23:21,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-22 00:23:21,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-22 00:23:21,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-22 00:23:21,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-22 00:23:21,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-22 00:23:21,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-22 00:23:21,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-22 00:23:21,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-22 00:23:21,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-22 00:23:21,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-22 00:23:21,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-22 00:23:21,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-22 00:23:21,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:23:21,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-22 00:23:21,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-22 00:23:21,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-22 00:23:21,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-22 00:23:21,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-22 00:23:21,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-22 00:23:21,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-22 00:23:21,600 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-22 00:23:21,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-22 00:23:21,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-22 00:23:21,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-22 00:23:21,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-22 00:23:21,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-22 00:23:21,919 INFO L275 PluginConnector]: CDTParser initialized [2021-05-22 00:23:21,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2021-05-22 00:23:21,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da911e12d/ffd8d71319b74c568c89cb93c64eeaca/FLAG5c9cd9806 [2021-05-22 00:23:22,456 INFO L306 CDTParser]: Found 1 translation units. [2021-05-22 00:23:22,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2021-05-22 00:23:22,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da911e12d/ffd8d71319b74c568c89cb93c64eeaca/FLAG5c9cd9806 [2021-05-22 00:23:22,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da911e12d/ffd8d71319b74c568c89cb93c64eeaca [2021-05-22 00:23:22,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-22 00:23:22,996 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-22 00:23:22,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-22 00:23:23,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-22 00:23:23,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-22 00:23:23,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:23:22" (1/1) ... [2021-05-22 00:23:23,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f2a824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23, skipping insertion in model container [2021-05-22 00:23:23,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:23:22" (1/1) ... [2021-05-22 00:23:23,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-22 00:23:23,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-22 00:23:23,465 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i[41060,41073] [2021-05-22 00:23:23,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:23:23,503 INFO L203 MainTranslator]: Completed pre-run [2021-05-22 00:23:23,543 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i[41060,41073] [2021-05-22 00:23:23,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:23:23,695 INFO L208 MainTranslator]: Completed translation [2021-05-22 00:23:23,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23 WrapperNode [2021-05-22 00:23:23,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-22 00:23:23,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-22 00:23:23,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-22 00:23:23,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-22 00:23:23,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-22 00:23:23,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-22 00:23:23,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-22 00:23:23,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-22 00:23:23,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... [2021-05-22 00:23:23,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-22 00:23:23,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-22 00:23:23,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-22 00:23:23,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-22 00:23:23,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:23:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-22 00:23:23,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-22 00:23:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-22 00:23:23,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-22 00:23:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-22 00:23:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-05-22 00:23:23,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-05-22 00:23:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-22 00:23:23,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-22 00:23:23,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-22 00:23:23,888 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-22 00:23:24,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-22 00:23:24,398 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-05-22 00:23:24,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:23:24 BoogieIcfgContainer [2021-05-22 00:23:24,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-22 00:23:24,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-22 00:23:24,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-22 00:23:24,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-22 00:23:24,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.05 12:23:22" (1/3) ... [2021-05-22 00:23:24,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be6839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:23:24, skipping insertion in model container [2021-05-22 00:23:24,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:23:23" (2/3) ... [2021-05-22 00:23:24,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75be6839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:23:24, skipping insertion in model container [2021-05-22 00:23:24,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:23:24" (3/3) ... [2021-05-22 00:23:24,406 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2021-05-22 00:23:24,410 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-22 00:23:24,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-22 00:23:24,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-22 00:23:24,412 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-22 00:23:24,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,432 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,432 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,432 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,433 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,433 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,433 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,434 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,435 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,436 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,437 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,438 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,439 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:24,446 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-22 00:23:24,461 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:23:24,477 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:23:24,477 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:23:24,477 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:23:24,477 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:23:24,477 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:23:24,477 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:23:24,477 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:23:24,478 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:23:24,487 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 121 transitions, 250 flow [2021-05-22 00:23:24,529 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-22 00:23:24,542 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:24,543 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:24,543 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:24,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:24,548 INFO L82 PathProgramCache]: Analyzing trace with hash -53598277, now seen corresponding path program 1 times [2021-05-22 00:23:24,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:24,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715674844] [2021-05-22 00:23:24,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:24,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:24,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715674844] [2021-05-22 00:23:24,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715674844] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:24,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:24,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-22 00:23:24,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51261426] [2021-05-22 00:23:24,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-22 00:23:24,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:24,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-22 00:23:24,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 00:23:24,790 INFO L87 Difference]: Start difference. First operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:24,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:24,823 INFO L93 Difference]: Finished difference Result 997 states and 1927 transitions. [2021-05-22 00:23:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-22 00:23:24,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-22 00:23:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:24,837 INFO L225 Difference]: With dead ends: 997 [2021-05-22 00:23:24,837 INFO L226 Difference]: Without dead ends: 518 [2021-05-22 00:23:24,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 00:23:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-05-22 00:23:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2021-05-22 00:23:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 516 states have (on average 1.8585271317829457) internal successors, (959), 517 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 959 transitions. [2021-05-22 00:23:24,900 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 959 transitions. Word has length 51 [2021-05-22 00:23:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:24,900 INFO L482 AbstractCegarLoop]: Abstraction has 518 states and 959 transitions. [2021-05-22 00:23:24,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 959 transitions. [2021-05-22 00:23:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-22 00:23:24,902 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:24,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:24,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-22 00:23:24,903 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:24,903 INFO L82 PathProgramCache]: Analyzing trace with hash 75484442, now seen corresponding path program 1 times [2021-05-22 00:23:24,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:24,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944926774] [2021-05-22 00:23:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:24,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:24,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:24,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944926774] [2021-05-22 00:23:24,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944926774] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:24,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:24,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:23:24,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696283935] [2021-05-22 00:23:24,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:23:24,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:24,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:23:24,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:24,985 INFO L87 Difference]: Start difference. First operand 518 states and 959 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:25,009 INFO L93 Difference]: Finished difference Result 504 states and 944 transitions. [2021-05-22 00:23:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:23:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-22 00:23:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:25,013 INFO L225 Difference]: With dead ends: 504 [2021-05-22 00:23:25,013 INFO L226 Difference]: Without dead ends: 504 [2021-05-22 00:23:25,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-05-22 00:23:25,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2021-05-22 00:23:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.8767395626242545) internal successors, (944), 503 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 944 transitions. [2021-05-22 00:23:25,036 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 944 transitions. Word has length 51 [2021-05-22 00:23:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:25,037 INFO L482 AbstractCegarLoop]: Abstraction has 504 states and 944 transitions. [2021-05-22 00:23:25,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 944 transitions. [2021-05-22 00:23:25,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-22 00:23:25,039 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:25,039 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:25,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-22 00:23:25,040 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:25,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:25,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1201830714, now seen corresponding path program 1 times [2021-05-22 00:23:25,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:25,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108318555] [2021-05-22 00:23:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:25,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:25,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108318555] [2021-05-22 00:23:25,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108318555] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:25,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965859380] [2021-05-22 00:23:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:23:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:25,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:23:25,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:23:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:25,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965859380] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:25,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:23:25,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:23:25,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590046444] [2021-05-22 00:23:25,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:23:25,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:25,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:23:25,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:23:25,592 INFO L87 Difference]: Start difference. First operand 504 states and 944 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:25,641 INFO L93 Difference]: Finished difference Result 182 states and 291 transitions. [2021-05-22 00:23:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:23:25,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-22 00:23:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:25,642 INFO L225 Difference]: With dead ends: 182 [2021-05-22 00:23:25,643 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:23:25,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:23:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:23:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:23:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:23:25,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-05-22 00:23:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:25,645 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:23:25,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:23:25,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:23:25,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-22 00:23:25,869 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:23:25,870 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:23:25,872 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:23:25,872 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:23:25,873 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:23:25,873 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:23:25,873 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:23:25,873 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:23:25,873 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:23:25,873 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:23:25,875 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 121 transitions, 250 flow [2021-05-22 00:23:25,888 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 1021 states, 1015 states have (on average 2.304433497536946) internal successors, (2339), 1020 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-22 00:23:25,893 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:25,893 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:25,893 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-22 00:23:25,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:25,894 INFO L82 PathProgramCache]: Analyzing trace with hash 742151311, now seen corresponding path program 1 times [2021-05-22 00:23:25,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:25,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652434772] [2021-05-22 00:23:25,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:23:25,923 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:23:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:23:25,950 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:23:25,994 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-22 00:23:25,995 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-22 00:23:25,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-22 00:23:25,995 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-22 00:23:25,996 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-22 00:23:25,996 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-05-22 00:23:26,013 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,013 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,014 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,014 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,014 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,015 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,015 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,017 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,018 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,018 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,018 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,018 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,018 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,019 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,021 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,021 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,021 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,022 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,023 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,024 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,025 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,026 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,027 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,028 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,029 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,033 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,034 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:26,038 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-22 00:23:26,039 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:23:26,040 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:23:26,041 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:23:26,041 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:23:26,041 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:23:26,041 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:23:26,041 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:23:26,041 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:23:26,041 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:23:26,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 151 transitions, 320 flow [2021-05-22 00:23:27,651 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-22 00:23:27,688 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:27,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:27,688 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1813572722, now seen corresponding path program 1 times [2021-05-22 00:23:27,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:27,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329023686] [2021-05-22 00:23:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:27,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:27,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329023686] [2021-05-22 00:23:27,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329023686] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:27,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:27,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-22 00:23:27,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859644239] [2021-05-22 00:23:27,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-22 00:23:27,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-22 00:23:27,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 00:23:27,835 INFO L87 Difference]: Start difference. First operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:28,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:28,109 INFO L93 Difference]: Finished difference Result 22525 states and 65392 transitions. [2021-05-22 00:23:28,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-22 00:23:28,110 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-22 00:23:28,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:28,173 INFO L225 Difference]: With dead ends: 22525 [2021-05-22 00:23:28,173 INFO L226 Difference]: Without dead ends: 11190 [2021-05-22 00:23:28,173 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-22 00:23:28,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2021-05-22 00:23:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 11190. [2021-05-22 00:23:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11187 states have (on average 2.85885402699562) internal successors, (31982), 11189 states have internal predecessors, (31982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 31982 transitions. [2021-05-22 00:23:28,706 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 31982 transitions. Word has length 51 [2021-05-22 00:23:28,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:28,707 INFO L482 AbstractCegarLoop]: Abstraction has 11190 states and 31982 transitions. [2021-05-22 00:23:28,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 31982 transitions. [2021-05-22 00:23:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-22 00:23:28,711 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:28,711 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:28,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-22 00:23:28,711 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:28,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1942655441, now seen corresponding path program 1 times [2021-05-22 00:23:28,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:28,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487270366] [2021-05-22 00:23:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:28,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:28,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487270366] [2021-05-22 00:23:28,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487270366] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:28,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:28,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:23:28,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648066596] [2021-05-22 00:23:28,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:23:28,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:23:28,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:28,780 INFO L87 Difference]: Start difference. First operand 11190 states and 31982 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:28,856 INFO L93 Difference]: Finished difference Result 11176 states and 31967 transitions. [2021-05-22 00:23:28,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:23:28,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-22 00:23:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:28,910 INFO L225 Difference]: With dead ends: 11176 [2021-05-22 00:23:28,910 INFO L226 Difference]: Without dead ends: 11176 [2021-05-22 00:23:28,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11176 states. [2021-05-22 00:23:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11176 to 11176. [2021-05-22 00:23:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11176 states, 11174 states have (on average 2.8608376588509037) internal successors, (31967), 11175 states have internal predecessors, (31967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11176 states to 11176 states and 31967 transitions. [2021-05-22 00:23:29,453 INFO L78 Accepts]: Start accepts. Automaton has 11176 states and 31967 transitions. Word has length 51 [2021-05-22 00:23:29,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:29,455 INFO L482 AbstractCegarLoop]: Abstraction has 11176 states and 31967 transitions. [2021-05-22 00:23:29,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:29,455 INFO L276 IsEmpty]: Start isEmpty. Operand 11176 states and 31967 transitions. [2021-05-22 00:23:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-22 00:23:29,456 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:29,457 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:29,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-22 00:23:29,457 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:29,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:29,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1169624843, now seen corresponding path program 1 times [2021-05-22 00:23:29,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:29,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611499895] [2021-05-22 00:23:29,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:29,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:29,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611499895] [2021-05-22 00:23:29,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611499895] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:29,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400908616] [2021-05-22 00:23:29,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:23:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:29,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:23:29,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:23:29,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:29,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400908616] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:29,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:23:29,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:23:29,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367776906] [2021-05-22 00:23:29,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:23:29,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:29,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:23:29,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:23:29,828 INFO L87 Difference]: Start difference. First operand 11176 states and 31967 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:29,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:29,933 INFO L93 Difference]: Finished difference Result 10854 states and 31314 transitions. [2021-05-22 00:23:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:23:29,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-22 00:23:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:29,960 INFO L225 Difference]: With dead ends: 10854 [2021-05-22 00:23:29,960 INFO L226 Difference]: Without dead ends: 10854 [2021-05-22 00:23:29,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 91.8ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:23:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2021-05-22 00:23:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 10854. [2021-05-22 00:23:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10854 states, 10853 states have (on average 2.8852851746061) internal successors, (31314), 10853 states have internal predecessors, (31314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10854 states to 10854 states and 31314 transitions. [2021-05-22 00:23:30,347 INFO L78 Accepts]: Start accepts. Automaton has 10854 states and 31314 transitions. Word has length 61 [2021-05-22 00:23:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:30,348 INFO L482 AbstractCegarLoop]: Abstraction has 10854 states and 31314 transitions. [2021-05-22 00:23:30,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 10854 states and 31314 transitions. [2021-05-22 00:23:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-22 00:23:30,353 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:30,353 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:30,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:23:30,571 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:30,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:30,571 INFO L82 PathProgramCache]: Analyzing trace with hash 240620856, now seen corresponding path program 1 times [2021-05-22 00:23:30,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:30,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773313811] [2021-05-22 00:23:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-22 00:23:30,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:30,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773313811] [2021-05-22 00:23:30,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773313811] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:30,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:30,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:23:30,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917339174] [2021-05-22 00:23:30,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:23:30,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:30,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:23:30,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:23:30,685 INFO L87 Difference]: Start difference. First operand 10854 states and 31314 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:30,793 INFO L93 Difference]: Finished difference Result 12121 states and 34512 transitions. [2021-05-22 00:23:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-22 00:23:30,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-05-22 00:23:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:30,815 INFO L225 Difference]: With dead ends: 12121 [2021-05-22 00:23:30,815 INFO L226 Difference]: Without dead ends: 10534 [2021-05-22 00:23:30,815 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:23:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10534 states. [2021-05-22 00:23:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10534 to 10534. [2021-05-22 00:23:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10534 states, 10533 states have (on average 2.881800056963828) internal successors, (30354), 10533 states have internal predecessors, (30354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10534 states to 10534 states and 30354 transitions. [2021-05-22 00:23:31,169 INFO L78 Accepts]: Start accepts. Automaton has 10534 states and 30354 transitions. Word has length 71 [2021-05-22 00:23:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:31,170 INFO L482 AbstractCegarLoop]: Abstraction has 10534 states and 30354 transitions. [2021-05-22 00:23:31,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 10534 states and 30354 transitions. [2021-05-22 00:23:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-22 00:23:31,180 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:31,180 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:31,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-22 00:23:31,180 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:31,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:31,181 INFO L82 PathProgramCache]: Analyzing trace with hash 672184266, now seen corresponding path program 1 times [2021-05-22 00:23:31,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:31,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013393818] [2021-05-22 00:23:31,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-22 00:23:31,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:31,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013393818] [2021-05-22 00:23:31,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013393818] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:23:31,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:23:31,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:23:31,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103385449] [2021-05-22 00:23:31,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:23:31,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:31,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:23:31,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:31,211 INFO L87 Difference]: Start difference. First operand 10534 states and 30354 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:31,278 INFO L93 Difference]: Finished difference Result 8592 states and 23183 transitions. [2021-05-22 00:23:31,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:23:31,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-05-22 00:23:31,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:31,296 INFO L225 Difference]: With dead ends: 8592 [2021-05-22 00:23:31,297 INFO L226 Difference]: Without dead ends: 8542 [2021-05-22 00:23:31,297 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:23:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2021-05-22 00:23:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 8353. [2021-05-22 00:23:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8353 states, 8345 states have (on average 2.7078490113840625) internal successors, (22597), 8352 states have internal predecessors, (22597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8353 states to 8353 states and 22597 transitions. [2021-05-22 00:23:31,615 INFO L78 Accepts]: Start accepts. Automaton has 8353 states and 22597 transitions. Word has length 79 [2021-05-22 00:23:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:31,615 INFO L482 AbstractCegarLoop]: Abstraction has 8353 states and 22597 transitions. [2021-05-22 00:23:31,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,615 INFO L276 IsEmpty]: Start isEmpty. Operand 8353 states and 22597 transitions. [2021-05-22 00:23:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-22 00:23:31,622 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:31,622 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:31,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-22 00:23:31,622 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:23:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash 794749320, now seen corresponding path program 1 times [2021-05-22 00:23:31,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:31,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849645648] [2021-05-22 00:23:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:31,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:23:31,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849645648] [2021-05-22 00:23:31,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849645648] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:31,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925152651] [2021-05-22 00:23:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:23:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:23:31,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-22 00:23:31,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:23:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:23:31,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925152651] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:23:31,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:23:31,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-22 00:23:31,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275150094] [2021-05-22 00:23:31,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:23:31,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:23:31,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:23:31,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:23:31,930 INFO L87 Difference]: Start difference. First operand 8353 states and 22597 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:23:31,981 INFO L93 Difference]: Finished difference Result 3208 states and 8171 transitions. [2021-05-22 00:23:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-22 00:23:31,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-05-22 00:23:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:23:31,982 INFO L225 Difference]: With dead ends: 3208 [2021-05-22 00:23:31,982 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:23:31,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 52.1ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-05-22 00:23:31,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:23:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:23:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:23:31,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2021-05-22 00:23:31,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:23:31,983 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:23:31,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:31,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:23:31,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:23:32,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-22 00:23:32,199 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:23:32,199 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:23:32,200 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:23:32,200 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:23:32,200 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:23:32,200 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:23:32,200 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:23:32,200 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:23:32,200 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:23:32,200 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:23:32,201 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 134 places, 151 transitions, 320 flow [2021-05-22 00:23:33,298 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 23078 states, 23069 states have (on average 3.5296285057869867) internal successors, (81425), 23077 states have internal predecessors, (81425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:23:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-05-22 00:23:33,334 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:23:33,334 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:23:33,334 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-22 00:23:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:23:33,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1542821756, now seen corresponding path program 1 times [2021-05-22 00:23:33,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:23:33,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750284016] [2021-05-22 00:23:33,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:23:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:23:33,406 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:23:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:23:33,420 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:23:33,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-22 00:23:33,440 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-22 00:23:33,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-22 00:23:33,440 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-22 00:23:33,440 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-22 00:23:33,440 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-05-22 00:23:33,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,467 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,468 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,472 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,472 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,472 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,473 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,474 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,475 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,476 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,477 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,478 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,479 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,480 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,481 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,481 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,482 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,482 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,483 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:23:33,486 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-22 00:23:33,487 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:23:33,488 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:23:33,488 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:23:33,488 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:23:33,488 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:23:33,488 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:23:33,488 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:23:33,489 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:23:33,489 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:23:33,490 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 181 transitions, 392 flow [2021-05-22 00:32:27,251 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:32:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:32:27,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-22 00:32:27,868 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:32:27,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:32:27,868 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:32:27,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:32:27,869 INFO L82 PathProgramCache]: Analyzing trace with hash 284029158, now seen corresponding path program 1 times [2021-05-22 00:32:27,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:32:27,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516125507] [2021-05-22 00:32:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:32:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:32:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:32:27,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:32:27,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516125507] [2021-05-22 00:32:27,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516125507] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:32:27,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:32:27,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:32:27,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111014183] [2021-05-22 00:32:27,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:32:27,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:32:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:32:27,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:32:28,520 INFO L87 Difference]: Start difference. First operand has 537565 states, 537551 states have (on average 4.730494408902597) internal successors, (2542882), 537564 states have internal predecessors, (2542882), 0 states have call successors, (0), 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 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:32:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:32:34,547 INFO L93 Difference]: Finished difference Result 524825 states and 2019344 transitions. [2021-05-22 00:32:34,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:32:34,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-22 00:32:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:32:36,766 INFO L225 Difference]: With dead ends: 524825 [2021-05-22 00:32:36,766 INFO L226 Difference]: Without dead ends: 256632 [2021-05-22 00:32:36,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:33:02,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256632 states. [2021-05-22 00:33:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256632 to 256632. [2021-05-22 00:33:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256632 states, 256629 states have (on average 3.8198333002115894) internal successors, (980280), 256631 states have internal predecessors, (980280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256632 states to 256632 states and 980280 transitions. [2021-05-22 00:33:11,680 INFO L78 Accepts]: Start accepts. Automaton has 256632 states and 980280 transitions. Word has length 51 [2021-05-22 00:33:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:33:11,680 INFO L482 AbstractCegarLoop]: Abstraction has 256632 states and 980280 transitions. [2021-05-22 00:33:11,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:11,680 INFO L276 IsEmpty]: Start isEmpty. Operand 256632 states and 980280 transitions. [2021-05-22 00:33:11,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-05-22 00:33:11,694 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:33:11,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:33:11,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-22 00:33:11,694 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:33:11,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:33:11,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1053960626, now seen corresponding path program 1 times [2021-05-22 00:33:11,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:33:11,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166154253] [2021-05-22 00:33:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:33:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:33:11,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:33:11,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:33:11,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166154253] [2021-05-22 00:33:11,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166154253] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:33:11,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245852156] [2021-05-22 00:33:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:33:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:33:11,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:33:11,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:33:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:33:12,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245852156] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:33:12,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:33:12,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:33:12,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427019503] [2021-05-22 00:33:12,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:33:12,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:33:12,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:33:12,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:33:12,043 INFO L87 Difference]: Start difference. First operand 256632 states and 980280 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:33:14,880 INFO L93 Difference]: Finished difference Result 256310 states and 979627 transitions. [2021-05-22 00:33:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:33:14,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-05-22 00:33:14,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:33:17,239 INFO L225 Difference]: With dead ends: 256310 [2021-05-22 00:33:17,239 INFO L226 Difference]: Without dead ends: 256310 [2021-05-22 00:33:17,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:33:42,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256310 states. [2021-05-22 00:33:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256310 to 256310. [2021-05-22 00:33:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256310 states, 256308 states have (on average 3.8220695413330836) internal successors, (979627), 256309 states have internal predecessors, (979627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256310 states to 256310 states and 979627 transitions. [2021-05-22 00:33:49,896 INFO L78 Accepts]: Start accepts. Automaton has 256310 states and 979627 transitions. Word has length 61 [2021-05-22 00:33:49,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:33:49,896 INFO L482 AbstractCegarLoop]: Abstraction has 256310 states and 979627 transitions. [2021-05-22 00:33:49,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:49,896 INFO L276 IsEmpty]: Start isEmpty. Operand 256310 states and 979627 transitions. [2021-05-22 00:33:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-22 00:33:49,901 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:33:49,901 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:33:50,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:33:50,121 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:33:50,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:33:50,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1141767125, now seen corresponding path program 1 times [2021-05-22 00:33:50,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:33:50,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556003964] [2021-05-22 00:33:50,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:33:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:33:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-05-22 00:33:50,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:33:50,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556003964] [2021-05-22 00:33:50,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556003964] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:33:50,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:33:50,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:33:50,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774528198] [2021-05-22 00:33:50,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:33:50,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:33:50,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:33:50,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:33:50,184 INFO L87 Difference]: Start difference. First operand 256310 states and 979627 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:33:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:33:53,343 INFO L93 Difference]: Finished difference Result 291518 states and 1102173 transitions. [2021-05-22 00:33:53,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-22 00:33:53,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-05-22 00:33:53,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:33:55,338 INFO L225 Difference]: With dead ends: 291518 [2021-05-22 00:33:55,338 INFO L226 Difference]: Without dead ends: 253430 [2021-05-22 00:33:55,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:34:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253430 states. [2021-05-22 00:34:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253430 to 253430. [2021-05-22 00:34:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253430 states, 253428 states have (on average 3.8213101946114874) internal successors, (968427), 253429 states have internal predecessors, (968427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:28,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253430 states to 253430 states and 968427 transitions. [2021-05-22 00:34:28,044 INFO L78 Accepts]: Start accepts. Automaton has 253430 states and 968427 transitions. Word has length 71 [2021-05-22 00:34:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:28,044 INFO L482 AbstractCegarLoop]: Abstraction has 253430 states and 968427 transitions. [2021-05-22 00:34:28,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 253430 states and 968427 transitions. [2021-05-22 00:34:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-05-22 00:34:28,061 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:28,061 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:28,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-22 00:34:28,062 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:28,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:28,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1293978253, now seen corresponding path program 1 times [2021-05-22 00:34:28,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:28,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492703453] [2021-05-22 00:34:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-22 00:34:28,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:28,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492703453] [2021-05-22 00:34:28,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492703453] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:34:28,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:34:28,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-22 00:34:28,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236577181] [2021-05-22 00:34:28,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-22 00:34:28,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:28,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-22 00:34:28,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:34:28,094 INFO L87 Difference]: Start difference. First operand 253430 states and 968427 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:29,853 INFO L93 Difference]: Finished difference Result 183142 states and 643913 transitions. [2021-05-22 00:34:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-22 00:34:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-05-22 00:34:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:30,372 INFO L225 Difference]: With dead ends: 183142 [2021-05-22 00:34:30,373 INFO L226 Difference]: Without dead ends: 182842 [2021-05-22 00:34:30,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-22 00:34:37,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182842 states. [2021-05-22 00:34:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182842 to 179440. [2021-05-22 00:34:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179440 states, 179406 states have (on average 3.5232935353332664) internal successors, (632100), 179439 states have internal predecessors, (632100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:41,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179440 states to 179440 states and 632100 transitions. [2021-05-22 00:34:41,908 INFO L78 Accepts]: Start accepts. Automaton has 179440 states and 632100 transitions. Word has length 79 [2021-05-22 00:34:41,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:41,908 INFO L482 AbstractCegarLoop]: Abstraction has 179440 states and 632100 transitions. [2021-05-22 00:34:41,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 179440 states and 632100 transitions. [2021-05-22 00:34:41,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-05-22 00:34:41,948 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:41,948 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:41,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-22 00:34:41,948 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:41,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1814823249, now seen corresponding path program 1 times [2021-05-22 00:34:41,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:41,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063331968] [2021-05-22 00:34:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:42,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:42,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063331968] [2021-05-22 00:34:42,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063331968] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:42,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942793587] [2021-05-22 00:34:42,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:42,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-22 00:34:42,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:34:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:42,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942793587] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:42,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:34:42,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-22 00:34:42,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729609288] [2021-05-22 00:34:42,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:34:42,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:42,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:34:42,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:34:42,223 INFO L87 Difference]: Start difference. First operand 179440 states and 632100 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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) [2021-05-22 00:34:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:43,715 INFO L93 Difference]: Finished difference Result 174295 states and 617674 transitions. [2021-05-22 00:34:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-22 00:34:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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 81 [2021-05-22 00:34:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:44,333 INFO L225 Difference]: With dead ends: 174295 [2021-05-22 00:34:44,334 INFO L226 Difference]: Without dead ends: 174295 [2021-05-22 00:34:44,334 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 49.2ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-05-22 00:34:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174295 states. [2021-05-22 00:34:54,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174295 to 174295. [2021-05-22 00:34:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174295 states, 174269 states have (on average 3.5443710585359414) internal successors, (617674), 174294 states have internal predecessors, (617674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174295 states to 174295 states and 617674 transitions. [2021-05-22 00:34:56,128 INFO L78 Accepts]: Start accepts. Automaton has 174295 states and 617674 transitions. Word has length 81 [2021-05-22 00:34:56,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:56,128 INFO L482 AbstractCegarLoop]: Abstraction has 174295 states and 617674 transitions. [2021-05-22 00:34:56,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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) [2021-05-22 00:34:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 174295 states and 617674 transitions. [2021-05-22 00:34:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-05-22 00:34:56,289 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:56,295 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:56,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-22 00:34:56,517 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1227726537, now seen corresponding path program 1 times [2021-05-22 00:34:56,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:56,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792681053] [2021-05-22 00:34:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:56,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:56,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792681053] [2021-05-22 00:34:56,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792681053] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:56,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636168673] [2021-05-22 00:34:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:56,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-22 00:34:56,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:34:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:57,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636168673] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:57,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:34:57,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-05-22 00:34:57,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062659603] [2021-05-22 00:34:57,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-22 00:34:57,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:57,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-22 00:34:57,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-22 00:34:57,017 INFO L87 Difference]: Start difference. First operand 174295 states and 617674 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:57,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:57,524 INFO L93 Difference]: Finished difference Result 66586 states and 225993 transitions. [2021-05-22 00:34:57,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-22 00:34:57,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-05-22 00:34:57,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:57,524 INFO L225 Difference]: With dead ends: 66586 [2021-05-22 00:34:57,524 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:34:57,526 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 98.1ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-05-22 00:34:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:34:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:34:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:34:57,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2021-05-22 00:34:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:57,527 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:34:57,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:34:57,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:34:57,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-22 00:34:57,741 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:34:57,741 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:34:57,742 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:57,742 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:57,742 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:57,742 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:57,742 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:57,742 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:57,742 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:57,742 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:34:57,743 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 181 transitions, 392 flow Received shutdown request... [2021-05-22 00:36:33,544 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-22 00:36:33,544 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-05-22 00:36:33,545 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2021-05-22 00:36:33,546 WARN L196 ceAbstractionStarter]: Timeout [2021-05-22 00:36:33,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.05 12:36:33 BasicIcfg [2021-05-22 00:36:33,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-22 00:36:33,547 INFO L168 Benchmark]: Toolchain (without parser) took 790551.11 ms. Allocated memory was 331.4 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 292.6 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 8.7 GB. Max. memory is 16.0 GB. [2021-05-22 00:36:33,547 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 331.4 MB. Free memory was 311.2 MB in the beginning and 311.2 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:36:33,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.35 ms. Allocated memory is still 331.4 MB. Free memory was 292.4 MB in the beginning and 269.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.0 GB. [2021-05-22 00:36:33,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.72 ms. Allocated memory is still 331.4 MB. Free memory was 268.6 MB in the beginning and 266.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:36:33,548 INFO L168 Benchmark]: Boogie Preprocessor took 45.30 ms. Allocated memory is still 331.4 MB. Free memory was 266.5 MB in the beginning and 265.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:36:33,548 INFO L168 Benchmark]: RCFGBuilder took 595.21 ms. Allocated memory is still 331.4 MB. Free memory was 265.3 MB in the beginning and 234.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-05-22 00:36:33,548 INFO L168 Benchmark]: TraceAbstraction took 789146.03 ms. Allocated memory was 331.4 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 234.1 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2021-05-22 00:36:33,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 331.4 MB. Free memory was 311.2 MB in the beginning and 311.2 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 697.35 ms. Allocated memory is still 331.4 MB. Free memory was 292.4 MB in the beginning and 269.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.72 ms. Allocated memory is still 331.4 MB. Free memory was 268.6 MB in the beginning and 266.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.30 ms. Allocated memory is still 331.4 MB. Free memory was 266.5 MB in the beginning and 265.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 595.21 ms. Allocated memory is still 331.4 MB. Free memory was 265.3 MB in the beginning and 234.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 789146.03 ms. Allocated memory was 331.4 MB in the beginning and 15.4 GB in the end (delta: 15.1 GB). Free memory was 234.1 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 922]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1394.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 16.2ms, AutomataDifference: 144.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 52.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 281 SDtfs, 171 SDslu, 301 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 67.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 74.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.8ms SsaConstructionTime, 166.2ms SatisfiabilityAnalysisTime, 485.9ms InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 266 SizeOfPredicates, 2 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 153 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6158.0ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 61.7ms, AutomataDifference: 910.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1610.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 827 SDtfs, 852 SDslu, 1335 SDs, 0 SdLazy, 125 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 179.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23078occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2132.8ms AutomataMinimizationTime, 6 MinimizatonAttempts, 189 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 107.9ms SsaConstructionTime, 121.1ms SatisfiabilityAnalysisTime, 607.2ms InterpolantComputationTime, 536 NumberOfCodeBlocks, 536 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 789 SizeOfPredicates, 6 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 24/50 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 176 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 684252.5ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 835.9ms, AutomataDifference: 24137.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 533762.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1076 SDtfs, 1473 SDslu, 3062 SDs, 0 SdLazy, 208 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 145.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 199.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=537565occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 123594.8ms AutomataMinimizationTime, 6 MinimizatonAttempts, 3402 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 67.6ms SsaConstructionTime, 143.6ms SatisfiabilityAnalysisTime, 704.0ms InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 658 ConstructedInterpolants, 0 QuantifiedInterpolants, 1237 SizeOfPredicates, 12 NumberOfNonLiveVariables, 586 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 24/116 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 130 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 123.1ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 3.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3ms SsaConstructionTime, 21.5ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 153 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1240.2ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 35.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1098.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23078occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5ms SsaConstructionTime, 66.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 176 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 95802.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 95801.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Completed graceful shutdown