/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 14:26:04,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 14:26:04,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 14:26:04,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 14:26:04,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 14:26:04,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 14:26:04,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 14:26:04,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 14:26:04,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 14:26:04,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 14:26:04,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 14:26:04,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 14:26:04,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 14:26:04,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 14:26:04,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 14:26:04,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 14:26:04,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 14:26:04,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 14:26:04,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 14:26:04,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 14:26:04,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 14:26:04,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 14:26:04,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 14:26:04,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 14:26:04,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 14:26:04,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 14:26:04,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 14:26:04,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 14:26:04,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 14:26:04,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 14:26:04,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 14:26:04,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 14:26:04,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 14:26:04,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 14:26:04,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 14:26:04,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 14:26:04,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 14:26:04,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 14:26:04,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 14:26:04,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 14:26:04,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 14:26:04,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 14:26:04,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 14:26:04,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 14:26:04,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 14:26:04,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 14:26:04,664 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 14:26:04,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 14:26:04,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 14:26:04,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 14:26:04,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 14:26:04,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 14:26:04,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 14:26:04,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 14:26:04,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 14:26:04,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 14:26:04,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 14:26:04,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 14:26:04,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 14:26:04,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 14:26:04,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 14:26:04,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 14:26:04,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 14:26:04,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 14:26:04,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 14:26:04,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 14:26:04,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 14:26:04,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 14:26:05,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 14:26:05,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 14:26:05,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 14:26:05,015 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 14:26:05,016 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-04-17 14:26:05,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f932d4f1f/3ba30a23df5744e4843cc8264ffa342d/FLAG7ec0b4107 [2020-04-17 14:26:05,588 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 14:26:05,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-04-17 14:26:05,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f932d4f1f/3ba30a23df5744e4843cc8264ffa342d/FLAG7ec0b4107 [2020-04-17 14:26:05,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f932d4f1f/3ba30a23df5744e4843cc8264ffa342d [2020-04-17 14:26:05,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 14:26:05,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 14:26:05,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 14:26:05,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 14:26:05,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 14:26:05,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:26:05" (1/1) ... [2020-04-17 14:26:05,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d73b367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:05, skipping insertion in model container [2020-04-17 14:26:05,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:26:05" (1/1) ... [2020-04-17 14:26:05,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 14:26:05,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 14:26:06,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:26:06,414 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 14:26:06,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:26:06,560 INFO L208 MainTranslator]: Completed translation [2020-04-17 14:26:06,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06 WrapperNode [2020-04-17 14:26:06,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 14:26:06,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 14:26:06,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 14:26:06,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 14:26:06,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 14:26:06,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 14:26:06,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 14:26:06,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 14:26:06,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (1/1) ... [2020-04-17 14:26:06,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 14:26:06,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 14:26:06,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 14:26:06,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 14:26:06,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (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 [2020-04-17 14:26:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 14:26:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-17 14:26:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-17 14:26:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-04-17 14:26:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-04-17 14:26:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-04-17 14:26:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-17 14:26:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 14:26:06,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 14:26:06,710 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 14:26:07,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 14:26:07,092 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-17 14:26:07,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:26:07 BoogieIcfgContainer [2020-04-17 14:26:07,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 14:26:07,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 14:26:07,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 14:26:07,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 14:26:07,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 02:26:05" (1/3) ... [2020-04-17 14:26:07,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6519e647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:26:07, skipping insertion in model container [2020-04-17 14:26:07,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:26:06" (2/3) ... [2020-04-17 14:26:07,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6519e647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:26:07, skipping insertion in model container [2020-04-17 14:26:07,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:26:07" (3/3) ... [2020-04-17 14:26:07,104 INFO L109 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-04-17 14:26:07,115 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 14:26:07,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 14:26:07,122 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 14:26:07,123 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 14:26:07,155 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,155 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,156 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,156 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,156 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,157 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,157 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,158 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,158 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,158 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,159 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,160 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,160 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,161 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,161 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,162 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,162 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,163 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,163 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,164 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,164 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,164 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,165 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,166 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,166 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,167 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,167 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,172 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,173 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,173 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,173 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,174 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,174 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,188 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,188 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,189 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,190 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,191 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,196 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,197 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,197 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,197 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,198 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:26:07,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-17 14:26:07,257 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 14:26:07,257 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 14:26:07,257 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 14:26:07,257 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 14:26:07,258 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 14:26:07,258 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 14:26:07,258 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 14:26:07,258 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 14:26:07,284 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 198 flow [2020-04-17 14:26:07,286 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-04-17 14:26:07,348 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-04-17 14:26:07,348 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-04-17 14:26:07,357 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. [2020-04-17 14:26:07,360 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 198 flow [2020-04-17 14:26:07,393 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2020-04-17 14:26:07,394 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-04-17 14:26:07,395 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. [2020-04-17 14:26:07,397 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1116 [2020-04-17 14:26:07,398 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 14:26:09,086 WARN L192 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-04-17 14:26:09,215 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-04-17 14:26:09,227 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2319 [2020-04-17 14:26:09,227 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2020-04-17 14:26:09,231 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-04-17 14:26:09,289 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-04-17 14:26:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-04-17 14:26:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 14:26:09,300 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:26:09,301 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:26:09,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:26:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:26:09,310 INFO L82 PathProgramCache]: Analyzing trace with hash 835949709, now seen corresponding path program 1 times [2020-04-17 14:26:09,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:26:09,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075848906] [2020-04-17 14:26:09,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:26:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:26:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:26:09,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075848906] [2020-04-17 14:26:09,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:26:09,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 14:26:09,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485115368] [2020-04-17 14:26:09,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:26:09,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:26:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:26:09,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:26:09,559 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-04-17 14:26:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:26:09,647 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-04-17 14:26:09,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:26:09,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 14:26:09,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:26:09,686 INFO L225 Difference]: With dead ends: 480 [2020-04-17 14:26:09,687 INFO L226 Difference]: Without dead ends: 250 [2020-04-17 14:26:09,691 INFO L678 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 [2020-04-17 14:26:09,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-04-17 14:26:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-04-17 14:26:09,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-04-17 14:26:09,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-04-17 14:26:09,782 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-04-17 14:26:09,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:26:09,783 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-04-17 14:26:09,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:26:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-04-17 14:26:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 14:26:09,785 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:26:09,785 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:26:09,785 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:26:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:26:09,786 INFO L82 PathProgramCache]: Analyzing trace with hash 188784817, now seen corresponding path program 1 times [2020-04-17 14:26:09,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:26:09,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731939585] [2020-04-17 14:26:09,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:26:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:26:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:26:09,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731939585] [2020-04-17 14:26:09,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:26:09,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:26:09,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927339863] [2020-04-17 14:26:09,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:26:09,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:26:09,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:26:09,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:26:09,897 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-04-17 14:26:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:26:09,923 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-04-17 14:26:09,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:26:09,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 14:26:09,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:26:09,925 INFO L225 Difference]: With dead ends: 142 [2020-04-17 14:26:09,925 INFO L226 Difference]: Without dead ends: 140 [2020-04-17 14:26:09,926 INFO L678 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 [2020-04-17 14:26:09,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-17 14:26:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-17 14:26:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-17 14:26:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-04-17 14:26:09,938 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-04-17 14:26:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:26:09,938 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-04-17 14:26:09,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:26:09,938 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-04-17 14:26:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 14:26:09,940 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:26:09,940 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:26:09,940 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:26:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:26:09,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1562794345, now seen corresponding path program 1 times [2020-04-17 14:26:09,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:26:09,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500545523] [2020-04-17 14:26:09,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:26:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:26:10,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:26:10,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500545523] [2020-04-17 14:26:10,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:26:10,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 14:26:10,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251374921] [2020-04-17 14:26:10,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 14:26:10,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:26:10,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 14:26:10,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 14:26:10,033 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-04-17 14:26:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:26:10,048 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-04-17 14:26:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 14:26:10,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 14:26:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:26:10,050 INFO L225 Difference]: With dead ends: 135 [2020-04-17 14:26:10,050 INFO L226 Difference]: Without dead ends: 130 [2020-04-17 14:26:10,051 INFO L678 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 [2020-04-17 14:26:10,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-04-17 14:26:10,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-04-17 14:26:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-04-17 14:26:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-04-17 14:26:10,058 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-04-17 14:26:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:26:10,058 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-04-17 14:26:10,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 14:26:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-04-17 14:26:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 14:26:10,060 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:26:10,060 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:26:10,060 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:26:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:26:10,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1580374126, now seen corresponding path program 1 times [2020-04-17 14:26:10,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:26:10,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253157810] [2020-04-17 14:26:10,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:26:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:26:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:26:10,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253157810] [2020-04-17 14:26:10,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:26:10,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:26:10,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323139411] [2020-04-17 14:26:10,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 14:26:10,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:26:10,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 14:26:10,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 14:26:10,135 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-04-17 14:26:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:26:10,167 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-04-17 14:26:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 14:26:10,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-17 14:26:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:26:10,168 INFO L225 Difference]: With dead ends: 125 [2020-04-17 14:26:10,168 INFO L226 Difference]: Without dead ends: 120 [2020-04-17 14:26:10,169 INFO L678 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 [2020-04-17 14:26:10,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-04-17 14:26:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-04-17 14:26:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-04-17 14:26:10,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-04-17 14:26:10,174 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-04-17 14:26:10,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:26:10,175 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-04-17 14:26:10,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 14:26:10,175 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-04-17 14:26:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-17 14:26:10,176 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:26:10,176 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:26:10,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:26:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:26:10,177 INFO L82 PathProgramCache]: Analyzing trace with hash -500515352, now seen corresponding path program 1 times [2020-04-17 14:26:10,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:26:10,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453173427] [2020-04-17 14:26:10,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:26:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 14:26:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-17 14:26:10,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-17 14:26:10,248 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-17 14:26:10,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 02:26:10 BasicIcfg [2020-04-17 14:26:10,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 14:26:10,314 INFO L168 Benchmark]: Toolchain (without parser) took 4409.57 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.0 MB in the beginning and 104.0 MB in the end (delta: -2.0 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,315 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.92 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 159.0 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.74 ms. Allocated memory is still 200.3 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,319 INFO L168 Benchmark]: Boogie Preprocessor took 26.41 ms. Allocated memory is still 200.3 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,319 INFO L168 Benchmark]: RCFGBuilder took 452.44 ms. Allocated memory is still 200.3 MB. Free memory was 155.0 MB in the beginning and 131.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,320 INFO L168 Benchmark]: TraceAbstraction took 3213.85 ms. Allocated memory was 200.3 MB in the beginning and 246.9 MB in the end (delta: 46.7 MB). Free memory was 131.8 MB in the beginning and 104.0 MB in the end (delta: 27.8 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2020-04-17 14:26:10,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.92 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 100.0 MB in the beginning and 159.0 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.74 ms. Allocated memory is still 200.3 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.41 ms. Allocated memory is still 200.3 MB. Free memory was 156.4 MB in the beginning and 155.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.44 ms. Allocated memory is still 200.3 MB. Free memory was 155.0 MB in the beginning and 131.8 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3213.85 ms. Allocated memory was 200.3 MB in the beginning and 246.9 MB in the end (delta: 46.7 MB). Free memory was 131.8 MB in the beginning and 104.0 MB in the end (delta: 27.8 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 81 ProgramPointsBefore, 40 ProgramPointsAfterwards, 78 TransitionsBefore, 37 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 502 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 23 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2319 CheckedPairsTotal, 46 TotalNumberOfCompositions - 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={5:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={5:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={5:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [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={5:0}] [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={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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: 0.0s 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...