/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:34:09,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:34:09,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:34:09,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:34:09,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:34:09,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:34:09,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:34:09,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:34:09,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:34:09,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:34:09,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:34:09,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:34:09,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:34:09,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:34:09,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:34:09,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:34:09,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:34:09,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:34:09,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:34:09,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:34:09,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:34:09,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:34:09,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:34:09,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:34:09,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:34:09,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:34:09,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:34:09,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:34:09,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:34:09,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:34:09,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:34:09,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:34:09,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:34:09,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:34:09,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:34:09,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:34:09,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:34:09,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:34:09,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:34:09,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:34:09,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:34:09,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:34:09,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:34:09,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:34:09,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:34:09,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:34:09,827 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:34:09,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:34:09,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:34:09,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:34:09,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:34:09,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:34:09,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:34:09,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:34:09,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:34:09,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:34:09,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:34:09,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:34:09,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:34:09,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:34:09,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:34:09,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:34:09,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:34:09,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:34:09,833 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:34:09,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:34:10,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:34:10,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:34:10,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:34:10,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:34:10,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:34:10,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2020-10-21 22:34:10,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71795472/660d225537fe43c5b80eb7547f523156/FLAGcee94d1c6 [2020-10-21 22:34:10,683 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:34:10,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2020-10-21 22:34:10,704 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71795472/660d225537fe43c5b80eb7547f523156/FLAGcee94d1c6 [2020-10-21 22:34:10,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d71795472/660d225537fe43c5b80eb7547f523156 [2020-10-21 22:34:10,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:34:10,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:34:10,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:34:10,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:34:10,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:34:10,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:34:10" (1/1) ... [2020-10-21 22:34:10,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179c9494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:10, skipping insertion in model container [2020-10-21 22:34:10,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:34:10" (1/1) ... [2020-10-21 22:34:10,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:34:11,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:34:11,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:34:11,461 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:34:11,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:34:11,581 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:34:11,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11 WrapperNode [2020-10-21 22:34:11,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:34:11,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:34:11,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:34:11,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:34:11,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:34:11,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:34:11,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:34:11,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:34:11,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... [2020-10-21 22:34:11,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:34:11,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:34:11,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:34:11,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:34:11,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:34:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:34:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-21 22:34:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-21 22:34:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-21 22:34:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-21 22:34:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-21 22:34:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-21 22:34:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:34:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:34:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:34:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:34:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:34:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:34:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:34:11,729 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:34:12,136 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:34:12,137 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-21 22:34:12,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:34:12 BoogieIcfgContainer [2020-10-21 22:34:12,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:34:12,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:34:12,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:34:12,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:34:12,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:34:10" (1/3) ... [2020-10-21 22:34:12,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691a77bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:34:12, skipping insertion in model container [2020-10-21 22:34:12,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:34:11" (2/3) ... [2020-10-21 22:34:12,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691a77bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:34:12, skipping insertion in model container [2020-10-21 22:34:12,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:34:12" (3/3) ... [2020-10-21 22:34:12,148 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-21 22:34:12,159 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:34:12,159 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:34:12,167 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:34:12,168 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:34:12,197 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,198 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,198 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,198 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,199 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,200 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,200 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,200 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,201 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,201 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,202 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,202 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,203 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,204 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,204 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,205 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,205 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,205 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,206 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,207 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,207 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,207 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,208 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,211 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,212 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,212 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,220 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,220 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,220 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,221 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,221 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,221 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,221 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,224 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,224 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,225 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,225 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,225 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:34:12,240 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-21 22:34:12,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 22:34:12,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:34:12,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:34:12,271 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:34:12,271 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:34:12,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:34:12,271 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:34:12,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:34:12,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:34:12,283 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:34:12,284 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 216 flow [2020-10-21 22:34:12,286 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 216 flow [2020-10-21 22:34:12,288 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 216 flow [2020-10-21 22:34:12,342 INFO L129 PetriNetUnfolder]: 7/95 cut-off events. [2020-10-21 22:34:12,342 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-21 22:34:12,348 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 95 events. 7/95 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 57. Up to 6 conditions per place. [2020-10-21 22:34:12,351 INFO L116 LiptonReduction]: Number of co-enabled transitions 1376 [2020-10-21 22:34:13,343 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-21 22:34:14,252 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-21 22:34:14,473 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-21 22:34:14,500 INFO L131 LiptonReduction]: Checked pairs total: 5211 [2020-10-21 22:34:14,500 INFO L133 LiptonReduction]: Total number of compositions: 56 [2020-10-21 22:34:14,507 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 38 transitions, 118 flow [2020-10-21 22:34:14,548 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 562 states. [2020-10-21 22:34:14,550 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states. [2020-10-21 22:34:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:34:14,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:14,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:14,559 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:14,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:14,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1835890462, now seen corresponding path program 1 times [2020-10-21 22:34:14,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:14,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902987201] [2020-10-21 22:34:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:14,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902987201] [2020-10-21 22:34:14,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:14,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:34:14,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099629339] [2020-10-21 22:34:14,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:34:14,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:14,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:34:14,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:14,841 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 3 states. [2020-10-21 22:34:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:14,900 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-10-21 22:34:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:34:14,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:34:14,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:14,919 INFO L225 Difference]: With dead ends: 480 [2020-10-21 22:34:14,919 INFO L226 Difference]: Without dead ends: 250 [2020-10-21 22:34:14,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:14,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-21 22:34:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-21 22:34:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-21 22:34:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-10-21 22:34:14,997 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-10-21 22:34:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:14,999 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-10-21 22:34:14,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:34:14,999 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-10-21 22:34:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:34:15,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:15,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:15,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:34:15,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:15,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1555385853, now seen corresponding path program 1 times [2020-10-21 22:34:15,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:15,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127410372] [2020-10-21 22:34:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:15,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127410372] [2020-10-21 22:34:15,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:15,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:34:15,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136906796] [2020-10-21 22:34:15,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:34:15,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:34:15,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:15,086 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-10-21 22:34:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:15,113 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-10-21 22:34:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:34:15,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 22:34:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:15,115 INFO L225 Difference]: With dead ends: 142 [2020-10-21 22:34:15,115 INFO L226 Difference]: Without dead ends: 140 [2020-10-21 22:34:15,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:34:15,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-21 22:34:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-21 22:34:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-21 22:34:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-10-21 22:34:15,127 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-10-21 22:34:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:15,127 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-10-21 22:34:15,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:34:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-10-21 22:34:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:34:15,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:15,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:15,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:34:15,129 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:15,129 INFO L82 PathProgramCache]: Analyzing trace with hash -972317906, now seen corresponding path program 1 times [2020-10-21 22:34:15,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:15,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071744835] [2020-10-21 22:34:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:15,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071744835] [2020-10-21 22:34:15,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:15,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:34:15,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132647693] [2020-10-21 22:34:15,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:34:15,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:15,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:34:15,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:34:15,193 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-10-21 22:34:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:15,210 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-10-21 22:34:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:34:15,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-21 22:34:15,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:15,211 INFO L225 Difference]: With dead ends: 135 [2020-10-21 22:34:15,212 INFO L226 Difference]: Without dead ends: 130 [2020-10-21 22:34:15,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:34:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-21 22:34:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-21 22:34:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-21 22:34:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-10-21 22:34:15,220 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-10-21 22:34:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:15,221 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-10-21 22:34:15,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:34:15,221 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-10-21 22:34:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:34:15,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:15,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:15,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:34:15,223 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:15,223 INFO L82 PathProgramCache]: Analyzing trace with hash 329507136, now seen corresponding path program 1 times [2020-10-21 22:34:15,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:15,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684386058] [2020-10-21 22:34:15,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:34:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:34:15,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684386058] [2020-10-21 22:34:15,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:34:15,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:34:15,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047534248] [2020-10-21 22:34:15,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:34:15,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:34:15,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:34:15,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:34:15,315 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-10-21 22:34:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:34:15,359 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-10-21 22:34:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:34:15,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-21 22:34:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:34:15,360 INFO L225 Difference]: With dead ends: 125 [2020-10-21 22:34:15,361 INFO L226 Difference]: Without dead ends: 120 [2020-10-21 22:34:15,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:34:15,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-21 22:34:15,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-21 22:34:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-21 22:34:15,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-21 22:34:15,368 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-10-21 22:34:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:34:15,369 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-21 22:34:15,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:34:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-10-21 22:34:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:34:15,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:34:15,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:34:15,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:34:15,371 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:34:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:34:15,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1392828880, now seen corresponding path program 1 times [2020-10-21 22:34:15,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:34:15,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323759909] [2020-10-21 22:34:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:34:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:34:15,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:34:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:34:15,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:34:15,468 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:34:15,469 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:34:15,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:34:15,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:34:15 BasicIcfg [2020-10-21 22:34:15,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:34:15,532 INFO L168 Benchmark]: Toolchain (without parser) took 4574.59 ms. Allocated memory was 139.5 MB in the beginning and 248.5 MB in the end (delta: 109.1 MB). Free memory was 101.1 MB in the beginning and 167.7 MB in the end (delta: -66.6 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,532 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.01 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 158.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.78 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,538 INFO L168 Benchmark]: Boogie Preprocessor took 26.26 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,541 INFO L168 Benchmark]: RCFGBuilder took 480.81 ms. Allocated memory is still 202.4 MB. Free memory was 154.1 MB in the beginning and 129.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,542 INFO L168 Benchmark]: TraceAbstraction took 3389.85 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 129.0 MB in the beginning and 167.7 MB in the end (delta: -38.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:34:15,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.01 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.1 MB in the beginning and 158.6 MB in the end (delta: -58.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.78 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 156.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.26 ms. Allocated memory is still 202.4 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 480.81 ms. Allocated memory is still 202.4 MB. Free memory was 154.1 MB in the beginning and 129.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3389.85 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 129.0 MB in the beginning and 167.7 MB in the end (delta: -38.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 832 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 162 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 89 PlacesBefore, 41 PlacesAfterwards, 87 TransitionsBefore, 38 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 5211 MoverChecksTotal - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L694] 0 pthread_mutex_t mutex; [L695] 0 int data = 0; [L723] 0 pthread_t t1, t2, t3; [L724] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={5:0}] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={5:0}] [L706] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={5:0}] [L726] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={5:0}] [L708] 2 return 0; [L699] 1 data++ [L701] 1 return 0; [L713] COND TRUE 3 data >= 3 [L12] COND FALSE 3 !(0) [L12] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={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, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 117 SDtfs, 67 SDslu, 134 SDs, 0 SdLazy, 38 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=562occurred 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, 1107 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...