/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 09:35:12,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 09:35:12,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 09:35:12,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 09:35:12,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 09:35:12,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 09:35:12,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 09:35:12,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 09:35:12,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 09:35:12,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 09:35:12,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 09:35:12,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 09:35:12,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 09:35:12,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 09:35:12,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 09:35:12,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 09:35:12,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 09:35:12,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 09:35:12,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 09:35:12,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 09:35:12,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 09:35:12,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 09:35:12,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 09:35:12,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 09:35:12,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 09:35:12,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 09:35:12,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 09:35:12,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 09:35:12,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 09:35:12,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 09:35:12,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 09:35:12,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 09:35:12,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 09:35:12,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 09:35:12,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 09:35:12,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 09:35:12,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 09:35:12,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 09:35:12,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 09:35:12,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 09:35:12,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 09:35:12,508 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 [2021-03-11 09:35:12,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 09:35:12,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 09:35:12,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 09:35:12,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 09:35:12,531 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 09:35:12,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 09:35:12,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 09:35:12,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 09:35:12,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 09:35:12,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 09:35:12,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 09:35:12,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:35:12,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 09:35:12,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 09:35:12,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 09:35:12,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 09:35:12,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 09:35:12,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 09:35:12,768 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 09:35:12,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2021-03-11 09:35:12,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eec28bb/e74140a8e7ba46f882b0867d5f754c53/FLAGc31290e19 [2021-03-11 09:35:13,242 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 09:35:13,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2021-03-11 09:35:13,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eec28bb/e74140a8e7ba46f882b0867d5f754c53/FLAGc31290e19 [2021-03-11 09:35:13,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2eec28bb/e74140a8e7ba46f882b0867d5f754c53 [2021-03-11 09:35:13,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 09:35:13,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 09:35:13,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 09:35:13,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 09:35:13,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 09:35:13,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8594ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13, skipping insertion in model container [2021-03-11 09:35:13,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 09:35:13,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 09:35:13,823 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2021-03-11 09:35:13,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:35:13,857 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 09:35:13,913 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2021-03-11 09:35:13,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:35:13,956 INFO L208 MainTranslator]: Completed translation [2021-03-11 09:35:13,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13 WrapperNode [2021-03-11 09:35:13,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 09:35:13,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 09:35:13,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 09:35:13,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 09:35:13,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 09:35:13,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 09:35:13,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 09:35:13,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 09:35:13,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... [2021-03-11 09:35:13,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 09:35:13,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 09:35:13,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 09:35:13,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 09:35:13,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:35:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 09:35:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 09:35:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 09:35:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 09:35:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 09:35:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 09:35:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 09:35:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 09:35:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 09:35:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 09:35:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 09:35:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 09:35:14,067 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 09:35:14,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 09:35:14,403 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 09:35:14,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:35:14 BoogieIcfgContainer [2021-03-11 09:35:14,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 09:35:14,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 09:35:14,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 09:35:14,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 09:35:14,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:35:13" (1/3) ... [2021-03-11 09:35:14,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb50cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:35:14, skipping insertion in model container [2021-03-11 09:35:14,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:35:13" (2/3) ... [2021-03-11 09:35:14,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb50cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:35:14, skipping insertion in model container [2021-03-11 09:35:14,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:35:14" (3/3) ... [2021-03-11 09:35:14,409 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2021-03-11 09:35:14,413 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 09:35:14,413 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 09:35:14,416 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 09:35:14,416 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 09:35:14,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,438 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,439 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,440 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,446 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,447 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,448 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,449 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,450 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,450 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,450 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,451 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,451 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,451 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,451 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,451 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,454 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,454 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,455 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,455 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:35:14,458 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 09:35:14,469 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 09:35:14,486 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 09:35:14,486 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 09:35:14,486 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 09:35:14,486 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 09:35:14,486 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 09:35:14,486 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 09:35:14,486 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 09:35:14,486 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 09:35:14,494 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 09:35:14,500 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 83 transitions, 188 flow [2021-03-11 09:35:14,501 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 83 transitions, 188 flow [2021-03-11 09:35:14,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 188 flow [2021-03-11 09:35:14,528 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-11 09:35:14,528 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 09:35:14,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 83 events. 2/83 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-03-11 09:35:14,531 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2021-03-11 09:35:16,657 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2021-03-11 09:35:16,889 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2021-03-11 09:35:17,358 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2021-03-11 09:35:17,533 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-11 09:35:17,898 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2021-03-11 09:35:18,083 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-11 09:35:18,086 INFO L131 LiptonReduction]: Checked pairs total: 3301 [2021-03-11 09:35:18,086 INFO L133 LiptonReduction]: Total number of compositions: 57 [2021-03-11 09:35:18,092 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2021-03-11 09:35:18,103 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 198 states, 196 states have (on average 2.1122448979591835) internal successors, (414), 197 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:35:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 2.1122448979591835) internal successors, (414), 197 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:35:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-03-11 09:35:18,110 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:35:18,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:35:18,111 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:35:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:35:18,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1194348412, now seen corresponding path program 1 times [2021-03-11 09:35:18,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:35:18,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3814487] [2021-03-11 09:35:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:35:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:35:18,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:35:18,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:35:18,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:35:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 09:35:18,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:35:18,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:35:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:35:18,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3814487] [2021-03-11 09:35:18,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:35:18,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 09:35:18,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707922262] [2021-03-11 09:35:18,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:35:18,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:35:18,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:35:18,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:35:18,275 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 2.1122448979591835) internal successors, (414), 197 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:35:18,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:35:18,314 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2021-03-11 09:35:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:35:18,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-03-11 09:35:18,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:35:18,323 INFO L225 Difference]: With dead ends: 150 [2021-03-11 09:35:18,323 INFO L226 Difference]: Without dead ends: 149 [2021-03-11 09:35:18,323 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:35:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-03-11 09:35:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-03-11 09:35:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.7094594594594594) internal successors, (253), 148 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:35:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2021-03-11 09:35:18,368 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2021-03-11 09:35:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:35:18,368 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2021-03-11 09:35:18,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:35:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2021-03-11 09:35:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-03-11 09:35:18,371 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:35:18,371 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:35:18,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 09:35:18,371 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:35:18,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:35:18,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1382885984, now seen corresponding path program 1 times [2021-03-11 09:35:18,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:35:18,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932950546] [2021-03-11 09:35:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:35:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:35:18,413 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:35:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 09:35:18,433 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 09:35:18,457 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 09:35:18,457 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 09:35:18,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 09:35:18,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:35:18 BasicIcfg [2021-03-11 09:35:18,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 09:35:18,504 INFO L168 Benchmark]: Toolchain (without parser) took 4894.17 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 341.2 MB in the beginning and 409.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. [2021-03-11 09:35:18,505 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 377.5 MB. Free memory was 359.1 MB in the beginning and 359.1 MB in the end (delta: 77.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:35:18,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.57 ms. Allocated memory is still 377.5 MB. Free memory was 340.6 MB in the beginning and 343.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. [2021-03-11 09:35:18,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.41 ms. Allocated memory is still 377.5 MB. Free memory was 343.1 MB in the beginning and 341.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:35:18,506 INFO L168 Benchmark]: Boogie Preprocessor took 12.84 ms. Allocated memory is still 377.5 MB. Free memory was 341.0 MB in the beginning and 339.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:35:18,513 INFO L168 Benchmark]: RCFGBuilder took 407.93 ms. Allocated memory is still 377.5 MB. Free memory was 339.9 MB in the beginning and 313.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 09:35:18,514 INFO L168 Benchmark]: TraceAbstraction took 4098.35 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 313.7 MB in the beginning and 409.1 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:35:18,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 377.5 MB. Free memory was 359.1 MB in the beginning and 359.1 MB in the end (delta: 77.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 340.57 ms. Allocated memory is still 377.5 MB. Free memory was 340.6 MB in the beginning and 343.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.41 ms. Allocated memory is still 377.5 MB. Free memory was 343.1 MB in the beginning and 341.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.84 ms. Allocated memory is still 377.5 MB. Free memory was 341.0 MB in the beginning and 339.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 407.93 ms. Allocated memory is still 377.5 MB. Free memory was 339.9 MB in the beginning and 313.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4098.35 ms. Allocated memory was 377.5 MB in the beginning and 469.8 MB in the end (delta: 92.3 MB). Free memory was 313.7 MB in the beginning and 409.1 MB in the end (delta: -95.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3584.5ms, 87 PlacesBefore, 35 PlacesAfterwards, 83 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 57 TotalNumberOfCompositions, 3301 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2058, positive: 1884, positive conditional: 0, positive unconditional: 1884, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, positive: 468, positive conditional: 0, positive unconditional: 468, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 209, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2058, positive: 1403, positive conditional: 0, positive unconditional: 1403, negative: 136, negative conditional: 0, negative unconditional: 136, unknown: 519, unknown conditional: 0, unknown unconditional: 519] , Statistics on independence cache: Total cache size (in pairs): 179, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={5:0}, mb={6:0}] [L697] 1 data1++ [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=10, data2++=10, ma={5:0}, mb={6:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, data2++=10, ma={5:0}, mb={6:0}] [L723] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, data2++=10, ma={5:0}, mb={6:0}] [L700] 1 data2++ [L702] 1 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={5:0}, mb={6:0}] [L707] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={5:0}, mb={6:0}] [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L712] 2 return 0; [L724] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3973.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 59.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3616.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 9 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.5ms SsaConstructionTime, 58.0ms SatisfiabilityAnalysisTime, 72.9ms InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...