/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 16:38:16,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 16:38:16,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 16:38:16,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 16:38:16,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 16:38:16,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 16:38:16,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 16:38:16,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 16:38:16,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 16:38:16,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 16:38:16,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 16:38:16,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 16:38:16,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 16:38:16,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 16:38:16,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 16:38:16,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 16:38:16,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 16:38:16,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 16:38:16,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 16:38:16,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 16:38:16,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 16:38:16,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 16:38:16,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 16:38:16,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 16:38:16,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 16:38:16,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 16:38:16,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 16:38:16,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 16:38:16,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 16:38:16,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 16:38:16,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 16:38:16,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 16:38:16,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 16:38:16,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 16:38:16,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 16:38:16,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 16:38:16,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 16:38:16,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 16:38:16,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 16:38:16,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 16:38:16,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 16:38:16,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 16:38:16,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 16:38:16,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 16:38:16,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 16:38:16,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 16:38:16,957 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 16:38:16,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 16:38:16,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 16:38:16,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 16:38:16,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 16:38:16,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 16:38:16,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 16:38:16,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 16:38:16,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 16:38:16,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 16:38:16,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 16:38:16,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 16:38:16,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 16:38:16,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 16:38:16,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 16:38:16,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 16:38:16,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 16:38:16,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 16:38:16,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 16:38:16,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 16:38:16,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 16:38:16,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 16:38:16,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 16:38:16,962 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 16:38:16,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 16:38:16,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 16:38:17,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 16:38:17,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 16:38:17,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 16:38:17,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 16:38:17,325 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 16:38:17,326 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-10-11 16:38:17,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e2f63c/a2defff70f1746278572dfdeb60c3d48/FLAG6b87f7f41 [2020-10-11 16:38:18,044 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 16:38:18,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-10-11 16:38:18,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e2f63c/a2defff70f1746278572dfdeb60c3d48/FLAG6b87f7f41 [2020-10-11 16:38:18,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e2f63c/a2defff70f1746278572dfdeb60c3d48 [2020-10-11 16:38:18,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 16:38:18,318 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 16:38:18,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 16:38:18,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 16:38:18,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 16:38:18,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:38:18" (1/1) ... [2020-10-11 16:38:18,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e354c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:18, skipping insertion in model container [2020-10-11 16:38:18,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:38:18" (1/1) ... [2020-10-11 16:38:18,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 16:38:18,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 16:38:18,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:38:18,987 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 16:38:19,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 16:38:19,150 INFO L208 MainTranslator]: Completed translation [2020-10-11 16:38:19,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19 WrapperNode [2020-10-11 16:38:19,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 16:38:19,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 16:38:19,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 16:38:19,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 16:38:19,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 16:38:19,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 16:38:19,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 16:38:19,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 16:38:19,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (1/1) ... [2020-10-11 16:38:19,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 16:38:19,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 16:38:19,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 16:38:19,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 16:38:19,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (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 [2020-10-11 16:38:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-11 16:38:19,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-11 16:38:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-11 16:38:19,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-11 16:38:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-11 16:38:19,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-11 16:38:19,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-11 16:38:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 16:38:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-11 16:38:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 16:38:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 16:38:19,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-11 16:38:19,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 16:38:19,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 16:38:19,296 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 16:38:19,655 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 16:38:19,655 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-11 16:38:19,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:38:19 BoogieIcfgContainer [2020-10-11 16:38:19,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 16:38:19,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 16:38:19,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 16:38:19,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 16:38:19,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:38:18" (1/3) ... [2020-10-11 16:38:19,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fc4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:38:19, skipping insertion in model container [2020-10-11 16:38:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:38:19" (2/3) ... [2020-10-11 16:38:19,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9fc4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:38:19, skipping insertion in model container [2020-10-11 16:38:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:38:19" (3/3) ... [2020-10-11 16:38:19,668 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-11 16:38:19,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 16:38:19,689 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 16:38:19,691 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 16:38:19,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,726 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,726 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,726 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,729 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,730 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,730 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,730 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,730 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,731 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,731 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,732 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,732 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,733 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,733 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,734 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,735 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,740 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,740 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,740 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,741 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,748 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,748 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,749 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,761 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,762 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,762 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,763 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,763 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 16:38:19,801 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 16:38:19,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 16:38:19,820 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 16:38:19,820 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 16:38:19,820 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 16:38:19,820 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 16:38:19,820 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 16:38:19,821 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 16:38:19,821 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 16:38:19,835 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-10-11 16:38:19,905 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-10-11 16:38:19,905 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-11 16:38:19,912 INFO L80 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 86 events. 6/86 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 129 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2020-10-11 16:38:19,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 198 flow [2020-10-11 16:38:19,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 60 transitions, 141 flow [2020-10-11 16:38:19,937 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2020-10-11 16:38:19,937 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-11 16:38:19,938 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:19,942 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:19,943 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:19,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:19,951 INFO L82 PathProgramCache]: Analyzing trace with hash -821811881, now seen corresponding path program 1 times [2020-10-11 16:38:19,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:19,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707997784] [2020-10-11 16:38:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:20,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707997784] [2020-10-11 16:38:20,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:20,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:38:20,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554951110] [2020-10-11 16:38:20,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:38:20,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:20,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:38:20,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:38:20,422 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 78 [2020-10-11 16:38:20,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 141 flow. Second operand 3 states. [2020-10-11 16:38:20,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:38:20,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 78 [2020-10-11 16:38:20,428 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:38:20,469 INFO L129 PetriNetUnfolder]: 5/84 cut-off events. [2020-10-11 16:38:20,469 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-11 16:38:20,470 INFO L80 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 84 events. 5/84 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 179 event pairs, 1 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2020-10-11 16:38:20,472 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 3 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2020-10-11 16:38:20,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 155 flow [2020-10-11 16:38:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:38:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:38:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2020-10-11 16:38:20,498 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9700854700854701 [2020-10-11 16:38:20,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2020-10-11 16:38:20,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2020-10-11 16:38:20,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:38:20,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2020-10-11 16:38:20,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:38:20,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:38:20,523 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:38:20,526 INFO L185 Difference]: Start difference. First operand has 67 places, 60 transitions, 141 flow. Second operand 3 states and 227 transitions. [2020-10-11 16:38:20,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 155 flow [2020-10-11 16:38:20,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 142 flow, removed 0 selfloop flow, removed 5 redundant places. [2020-10-11 16:38:20,537 INFO L241 Difference]: Finished difference. Result has 65 places, 61 transitions, 145 flow [2020-10-11 16:38:20,540 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2020-10-11 16:38:20,542 INFO L341 CegarLoopForPetriNet]: 67 programPoint places, -2 predicate places. [2020-10-11 16:38:20,542 INFO L481 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 145 flow [2020-10-11 16:38:20,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:38:20,543 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:20,543 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:20,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 16:38:20,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash -117303591, now seen corresponding path program 1 times [2020-10-11 16:38:20,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:20,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605533776] [2020-10-11 16:38:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:20,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605533776] [2020-10-11 16:38:20,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:20,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 16:38:20,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137836547] [2020-10-11 16:38:20,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 16:38:20,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:20,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 16:38:20,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 16:38:20,768 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 78 [2020-10-11 16:38:20,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 145 flow. Second operand 3 states. [2020-10-11 16:38:20,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:38:20,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 78 [2020-10-11 16:38:20,770 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:38:20,856 INFO L129 PetriNetUnfolder]: 7/131 cut-off events. [2020-10-11 16:38:20,857 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-11 16:38:20,858 INFO L80 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 131 events. 7/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 450 event pairs, 3 based on Foata normal form. 11/142 useless extension candidates. Maximal degree in co-relation 146. Up to 15 conditions per place. [2020-10-11 16:38:20,859 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 2 selfloop transitions, 6 changer transitions 2/61 dead transitions. [2020-10-11 16:38:20,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 61 transitions, 161 flow [2020-10-11 16:38:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 16:38:20,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 16:38:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2020-10-11 16:38:20,866 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9316239316239316 [2020-10-11 16:38:20,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 218 transitions. [2020-10-11 16:38:20,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 218 transitions. [2020-10-11 16:38:20,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:38:20,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 218 transitions. [2020-10-11 16:38:20,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 16:38:20,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 16:38:20,880 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 16:38:20,880 INFO L185 Difference]: Start difference. First operand has 65 places, 61 transitions, 145 flow. Second operand 3 states and 218 transitions. [2020-10-11 16:38:20,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 61 transitions, 161 flow [2020-10-11 16:38:20,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 61 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:38:20,884 INFO L241 Difference]: Finished difference. Result has 66 places, 59 transitions, 150 flow [2020-10-11 16:38:20,887 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2020-10-11 16:38:20,893 INFO L341 CegarLoopForPetriNet]: 67 programPoint places, -1 predicate places. [2020-10-11 16:38:20,894 INFO L481 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 150 flow [2020-10-11 16:38:20,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 16:38:20,894 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:20,894 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:20,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 16:38:20,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:20,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:20,899 INFO L82 PathProgramCache]: Analyzing trace with hash 654831243, now seen corresponding path program 1 times [2020-10-11 16:38:20,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:20,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688744969] [2020-10-11 16:38:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:21,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688744969] [2020-10-11 16:38:21,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:21,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 16:38:21,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217952957] [2020-10-11 16:38:21,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 16:38:21,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:21,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 16:38:21,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-11 16:38:21,102 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2020-10-11 16:38:21,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 150 flow. Second operand 4 states. [2020-10-11 16:38:21,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:38:21,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2020-10-11 16:38:21,103 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:38:21,147 INFO L129 PetriNetUnfolder]: 6/130 cut-off events. [2020-10-11 16:38:21,148 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2020-10-11 16:38:21,149 INFO L80 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 130 events. 6/130 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 454 event pairs, 0 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 157. Up to 13 conditions per place. [2020-10-11 16:38:21,149 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 2 selfloop transitions, 5 changer transitions 3/62 dead transitions. [2020-10-11 16:38:21,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 178 flow [2020-10-11 16:38:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 16:38:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-11 16:38:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2020-10-11 16:38:21,153 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2020-10-11 16:38:21,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 299 transitions. [2020-10-11 16:38:21,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 299 transitions. [2020-10-11 16:38:21,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:38:21,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 299 transitions. [2020-10-11 16:38:21,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-11 16:38:21,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-11 16:38:21,157 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-11 16:38:21,157 INFO L185 Difference]: Start difference. First operand has 66 places, 59 transitions, 150 flow. Second operand 4 states and 299 transitions. [2020-10-11 16:38:21,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 178 flow [2020-10-11 16:38:21,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 16:38:21,161 INFO L241 Difference]: Finished difference. Result has 67 places, 59 transitions, 161 flow [2020-10-11 16:38:21,161 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2020-10-11 16:38:21,161 INFO L341 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2020-10-11 16:38:21,161 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 161 flow [2020-10-11 16:38:21,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 16:38:21,162 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:21,162 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:21,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 16:38:21,163 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:21,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:21,163 INFO L82 PathProgramCache]: Analyzing trace with hash -61347595, now seen corresponding path program 1 times [2020-10-11 16:38:21,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:21,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298745434] [2020-10-11 16:38:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 16:38:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 16:38:21,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298745434] [2020-10-11 16:38:21,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 16:38:21,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-11 16:38:21,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447443712] [2020-10-11 16:38:21,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 16:38:21,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 16:38:21,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 16:38:21,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 16:38:21,326 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 78 [2020-10-11 16:38:21,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 161 flow. Second operand 5 states. [2020-10-11 16:38:21,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 16:38:21,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 78 [2020-10-11 16:38:21,327 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 16:38:21,368 INFO L129 PetriNetUnfolder]: 2/84 cut-off events. [2020-10-11 16:38:21,368 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2020-10-11 16:38:21,369 INFO L80 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 84 events. 2/84 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 201 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 88. Up to 7 conditions per place. [2020-10-11 16:38:21,370 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 5 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2020-10-11 16:38:21,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 61 transitions, 187 flow [2020-10-11 16:38:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 16:38:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 16:38:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 432 transitions. [2020-10-11 16:38:21,373 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2020-10-11 16:38:21,373 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 432 transitions. [2020-10-11 16:38:21,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 432 transitions. [2020-10-11 16:38:21,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 16:38:21,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 432 transitions. [2020-10-11 16:38:21,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 16:38:21,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 16:38:21,377 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 16:38:21,377 INFO L185 Difference]: Start difference. First operand has 67 places, 59 transitions, 161 flow. Second operand 6 states and 432 transitions. [2020-10-11 16:38:21,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 61 transitions, 187 flow [2020-10-11 16:38:21,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 182 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-11 16:38:21,381 INFO L241 Difference]: Finished difference. Result has 74 places, 61 transitions, 185 flow [2020-10-11 16:38:21,382 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=185, PETRI_PLACES=74, PETRI_TRANSITIONS=61} [2020-10-11 16:38:21,382 INFO L341 CegarLoopForPetriNet]: 67 programPoint places, 7 predicate places. [2020-10-11 16:38:21,382 INFO L481 AbstractCegarLoop]: Abstraction has has 74 places, 61 transitions, 185 flow [2020-10-11 16:38:21,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 16:38:21,382 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 16:38:21,383 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 16:38:21,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 16:38:21,383 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 16:38:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 16:38:21,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1817849913, now seen corresponding path program 1 times [2020-10-11 16:38:21,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 16:38:21,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815136834] [2020-10-11 16:38:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 16:38:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:38:21,420 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:38:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 16:38:21,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 16:38:21,506 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 16:38:21,507 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 16:38:21,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 16:38:21,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 04:38:21 BasicIcfg [2020-10-11 16:38:21,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 16:38:21,564 INFO L168 Benchmark]: Toolchain (without parser) took 3245.55 ms. Allocated memory was 249.0 MB in the beginning and 357.6 MB in the end (delta: 108.5 MB). Free memory was 204.4 MB in the beginning and 248.6 MB in the end (delta: -44.2 MB). Peak memory consumption was 64.3 MB. Max. memory is 14.2 GB. [2020-10-11 16:38:21,565 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:38:21,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.99 ms. Allocated memory was 249.0 MB in the beginning and 306.2 MB in the end (delta: 57.1 MB). Free memory was 204.4 MB in the beginning and 261.4 MB in the end (delta: -57.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. [2020-10-11 16:38:21,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.42 ms. Allocated memory is still 306.2 MB. Free memory was 261.4 MB in the beginning and 258.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 16:38:21,567 INFO L168 Benchmark]: Boogie Preprocessor took 26.40 ms. Allocated memory is still 306.2 MB. Free memory is still 258.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 16:38:21,568 INFO L168 Benchmark]: RCFGBuilder took 428.92 ms. Allocated memory is still 306.2 MB. Free memory was 258.9 MB in the beginning and 234.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. [2020-10-11 16:38:21,569 INFO L168 Benchmark]: TraceAbstraction took 1901.58 ms. Allocated memory was 306.2 MB in the beginning and 357.6 MB in the end (delta: 51.4 MB). Free memory was 234.6 MB in the beginning and 248.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 37.3 MB. Max. memory is 14.2 GB. [2020-10-11 16:38:21,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 831.99 ms. Allocated memory was 249.0 MB in the beginning and 306.2 MB in the end (delta: 57.1 MB). Free memory was 204.4 MB in the beginning and 261.4 MB in the end (delta: -57.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.42 ms. Allocated memory is still 306.2 MB. Free memory was 261.4 MB in the beginning and 258.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.40 ms. Allocated memory is still 306.2 MB. Free memory is still 258.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 428.92 ms. Allocated memory is still 306.2 MB. Free memory was 258.9 MB in the beginning and 234.6 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1901.58 ms. Allocated memory was 306.2 MB in the beginning and 357.6 MB in the end (delta: 51.4 MB). Free memory was 234.6 MB in the beginning and 248.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 37.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 703]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L683] 0 pthread_mutex_t mutex; VAL [mutex={5:0}] [L684] 0 int data = 0; VAL [data=0, mutex={5:0}] [L712] 0 pthread_t t1, t2, t3; VAL [data=0, mutex={5:0}] [L713] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={5:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [L695] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L702] COND TRUE 3 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L703] 3 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 20 SDslu, 9 SDs, 0 SdLazy, 73 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 9742 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...