/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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 20:07:25,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 20:07:25,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 20:07:25,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 20:07:25,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 20:07:25,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 20:07:25,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 20:07:25,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 20:07:25,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 20:07:25,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 20:07:25,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 20:07:25,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 20:07:25,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 20:07:25,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 20:07:25,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 20:07:25,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 20:07:25,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 20:07:25,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 20:07:25,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 20:07:25,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 20:07:25,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 20:07:25,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 20:07:25,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 20:07:25,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 20:07:25,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 20:07:25,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 20:07:25,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 20:07:25,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 20:07:25,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 20:07:25,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 20:07:25,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 20:07:25,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 20:07:25,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 20:07:25,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 20:07:25,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 20:07:25,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 20:07:25,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 20:07:25,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 20:07:25,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 20:07:25,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 20:07:25,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 20:07:25,470 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-SemanticLbe.epf [2020-10-15 20:07:25,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 20:07:25,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 20:07:25,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 20:07:25,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 20:07:25,517 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 20:07:25,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 20:07:25,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 20:07:25,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 20:07:25,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 20:07:25,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 20:07:25,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 20:07:25,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 20:07:25,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 20:07:25,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 20:07:25,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 20:07:25,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 20:07:25,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 20:07:25,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 20:07:25,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 20:07:25,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 20:07:25,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 20:07:25,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:07:25,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 20:07:25,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 20:07:25,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 20:07:25,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 20:07:25,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 20:07:25,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 20:07:25,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 20:07:25,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 20:07:25,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 20:07:25,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 20:07:25,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 20:07:25,846 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 20:07:25,847 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-10-15 20:07:25,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f6675a6/41f68390d23543a58f4944c0dca6a020/FLAGebc3f3d01 [2020-10-15 20:07:26,440 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 20:07:26,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-10-15 20:07:26,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f6675a6/41f68390d23543a58f4944c0dca6a020/FLAGebc3f3d01 [2020-10-15 20:07:26,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f6675a6/41f68390d23543a58f4944c0dca6a020 [2020-10-15 20:07:26,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 20:07:26,691 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 20:07:26,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 20:07:26,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 20:07:26,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 20:07:26,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:07:26" (1/1) ... [2020-10-15 20:07:26,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760224d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:26, skipping insertion in model container [2020-10-15 20:07:26,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:07:26" (1/1) ... [2020-10-15 20:07:26,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 20:07:26,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 20:07:27,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:07:27,202 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 20:07:27,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:07:27,382 INFO L208 MainTranslator]: Completed translation [2020-10-15 20:07:27,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27 WrapperNode [2020-10-15 20:07:27,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 20:07:27,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 20:07:27,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 20:07:27,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 20:07:27,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 20:07:27,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 20:07:27,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 20:07:27,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 20:07:27,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (1/1) ... [2020-10-15 20:07:27,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 20:07:27,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 20:07:27,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 20:07:27,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 20:07:27,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (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 [2020-10-15 20:07:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 20:07:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-15 20:07:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-15 20:07:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-15 20:07:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-15 20:07:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-15 20:07:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-15 20:07:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 20:07:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 20:07:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 20:07:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 20:07:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 20:07:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 20:07:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 20:07:27,543 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 20:07:27,910 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 20:07:27,911 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-15 20:07:27,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:07:27 BoogieIcfgContainer [2020-10-15 20:07:27,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 20:07:27,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 20:07:27,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 20:07:27,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 20:07:27,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:07:26" (1/3) ... [2020-10-15 20:07:27,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb81e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:07:27, skipping insertion in model container [2020-10-15 20:07:27,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:07:27" (2/3) ... [2020-10-15 20:07:27,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb81e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:07:27, skipping insertion in model container [2020-10-15 20:07:27,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:07:27" (3/3) ... [2020-10-15 20:07:27,922 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-15 20:07:27,937 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 20:07:27,938 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 20:07:27,948 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 20:07:27,949 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 20:07:27,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,978 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,981 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,981 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,981 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,983 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:27,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,000 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,000 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,000 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,006 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,007 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,007 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,007 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,007 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:07:28,044 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 20:07:28,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:07:28,062 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:07:28,062 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:07:28,062 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:07:28,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:07:28,062 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:07:28,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:07:28,063 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:07:28,075 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:07:28,078 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-15 20:07:28,080 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 198 flow [2020-10-15 20:07:28,082 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-10-15 20:07:28,135 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-10-15 20:07:28,135 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-15 20:07:28,141 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. [2020-10-15 20:07:28,144 INFO L117 LiptonReduction]: Number of co-enabled transitions 1116 [2020-10-15 20:07:29,708 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-15 20:07:29,836 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-15 20:07:29,848 INFO L132 LiptonReduction]: Checked pairs total: 4473 [2020-10-15 20:07:29,848 INFO L134 LiptonReduction]: Total number of compositions: 46 [2020-10-15 20:07:29,855 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-10-15 20:07:29,896 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-10-15 20:07:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-10-15 20:07:29,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 20:07:29,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:29,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:29,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash 835949709, now seen corresponding path program 1 times [2020-10-15 20:07:29,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:29,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353148917] [2020-10-15 20:07:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:30,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353148917] [2020-10-15 20:07:30,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:30,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 20:07:30,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570641004] [2020-10-15 20:07:30,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:07:30,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:30,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:07:30,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:30,242 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-10-15 20:07:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:30,305 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-10-15 20:07:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:07:30,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 20:07:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:30,328 INFO L225 Difference]: With dead ends: 480 [2020-10-15 20:07:30,328 INFO L226 Difference]: Without dead ends: 250 [2020-10-15 20:07:30,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-15 20:07:30,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-15 20:07:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-15 20:07:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-10-15 20:07:30,420 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-10-15 20:07:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:30,421 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-10-15 20:07:30,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:07:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-10-15 20:07:30,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:07:30,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:30,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:30,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 20:07:30,424 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:30,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:30,425 INFO L82 PathProgramCache]: Analyzing trace with hash 188784817, now seen corresponding path program 1 times [2020-10-15 20:07:30,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:30,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323509431] [2020-10-15 20:07:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:30,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323509431] [2020-10-15 20:07:30,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:30,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:07:30,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539342382] [2020-10-15 20:07:30,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:07:30,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:30,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:07:30,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:30,545 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-10-15 20:07:30,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:30,576 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-10-15 20:07:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:07:30,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 20:07:30,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:30,579 INFO L225 Difference]: With dead ends: 142 [2020-10-15 20:07:30,579 INFO L226 Difference]: Without dead ends: 140 [2020-10-15 20:07:30,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:07:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-15 20:07:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-15 20:07:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-15 20:07:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-10-15 20:07:30,590 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-10-15 20:07:30,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:30,590 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-10-15 20:07:30,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:07:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-10-15 20:07:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 20:07:30,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:30,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:30,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 20:07:30,592 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:30,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1562794345, now seen corresponding path program 1 times [2020-10-15 20:07:30,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:30,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662596493] [2020-10-15 20:07:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:30,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662596493] [2020-10-15 20:07:30,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:30,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 20:07:30,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707345306] [2020-10-15 20:07:30,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:07:30,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:30,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:07:30,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:07:30,650 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-10-15 20:07:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:30,668 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-10-15 20:07:30,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:07:30,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 20:07:30,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:30,670 INFO L225 Difference]: With dead ends: 135 [2020-10-15 20:07:30,671 INFO L226 Difference]: Without dead ends: 130 [2020-10-15 20:07:30,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:07:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-15 20:07:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-15 20:07:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-15 20:07:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-10-15 20:07:30,680 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-10-15 20:07:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:30,680 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-10-15 20:07:30,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:07:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-10-15 20:07:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:07:30,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:30,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:30,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 20:07:30,685 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:30,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1580374126, now seen corresponding path program 1 times [2020-10-15 20:07:30,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:30,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084382507] [2020-10-15 20:07:30,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:07:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:07:30,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084382507] [2020-10-15 20:07:30,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:07:30,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:07:30,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867343233] [2020-10-15 20:07:30,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:07:30,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:07:30,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:07:30,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:07:30,789 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-10-15 20:07:30,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:07:30,830 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-10-15 20:07:30,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:07:30,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 20:07:30,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:07:30,833 INFO L225 Difference]: With dead ends: 125 [2020-10-15 20:07:30,833 INFO L226 Difference]: Without dead ends: 120 [2020-10-15 20:07:30,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:07:30,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-15 20:07:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-15 20:07:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-15 20:07:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-15 20:07:30,847 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-10-15 20:07:30,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:07:30,848 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-15 20:07:30,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:07:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-10-15 20:07:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 20:07:30,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:07:30,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:07:30,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 20:07:30,850 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:07:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:07:30,851 INFO L82 PathProgramCache]: Analyzing trace with hash -500515352, now seen corresponding path program 1 times [2020-10-15 20:07:30,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:07:30,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800170521] [2020-10-15 20:07:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:07:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:07:30,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:07:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:07:30,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:07:30,934 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:07:30,934 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:07:30,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 20:07:30,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:07:30 BasicIcfg [2020-10-15 20:07:30,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 20:07:30,975 INFO L168 Benchmark]: Toolchain (without parser) took 4284.32 ms. Allocated memory was 250.1 MB in the beginning and 372.8 MB in the end (delta: 122.7 MB). Free memory was 205.4 MB in the beginning and 299.4 MB in the end (delta: -94.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 14.2 GB. [2020-10-15 20:07:30,976 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:07:30,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.16 ms. Allocated memory was 250.1 MB in the beginning and 313.5 MB in the end (delta: 63.4 MB). Free memory was 205.4 MB in the beginning and 268.9 MB in the end (delta: -63.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. [2020-10-15 20:07:30,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 313.5 MB. Free memory was 268.9 MB in the beginning and 266.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 20:07:30,978 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 ms. Allocated memory is still 313.5 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:07:30,979 INFO L168 Benchmark]: RCFGBuilder took 432.37 ms. Allocated memory is still 313.5 MB. Free memory was 266.4 MB in the beginning and 242.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. [2020-10-15 20:07:30,980 INFO L168 Benchmark]: TraceAbstraction took 3059.19 ms. Allocated memory was 313.5 MB in the beginning and 372.8 MB in the end (delta: 59.2 MB). Free memory was 242.1 MB in the beginning and 299.4 MB in the end (delta: -57.4 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.2 GB. [2020-10-15 20:07:30,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 693.16 ms. Allocated memory was 250.1 MB in the beginning and 313.5 MB in the end (delta: 63.4 MB). Free memory was 205.4 MB in the beginning and 268.9 MB in the end (delta: -63.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 68.96 ms. Allocated memory is still 313.5 MB. Free memory was 268.9 MB in the beginning and 266.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.74 ms. Allocated memory is still 313.5 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 432.37 ms. Allocated memory is still 313.5 MB. Free memory was 266.4 MB in the beginning and 242.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3059.19 ms. Allocated memory was 313.5 MB in the beginning and 372.8 MB in the end (delta: 59.2 MB). Free memory was 242.1 MB in the beginning and 299.4 MB in the end (delta: -57.4 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 784 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 210 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 81 PlacesBefore, 40 PlacesAfterwards, 78 TransitionsBefore, 37 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 4473 MoverChecksTotal - 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; [L684] 0 int data = 0; [L712] 0 pthread_t t1, t2, t3; [L713] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={6:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={6:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={6:0}] [L690] 1 return 0; [L695] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] [L697] 2 return 0; [L702] COND TRUE 3 data >= 3 [L703] 3 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 115 SDtfs, 66 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 945 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...