/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/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:10:06,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:10:06,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:10:06,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:10:06,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:10:06,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:10:06,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:10:06,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:10:06,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:10:06,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:10:06,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:10:06,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:10:06,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:10:06,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:10:06,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:10:06,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:10:06,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:10:06,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:10:06,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:10:06,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:10:06,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:10:06,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:10:06,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:10:06,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:10:06,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 23:10:06,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:10:06,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:10:06,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:10:06,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:10:06,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:10:06,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:10:06,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:10:06,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:10:06,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:10:06,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:10:06,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:10:06,764 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 23:10:06,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:10:06,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:10:06,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:10:06,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:10:06,787 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:10:06,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:10:06,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:10:06,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:10:06,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:10:06,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:10:06,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:10:06,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:10:06,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:10:06,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:10:06,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:10:06,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:10:06,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:10:06,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:10:06,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:10:06,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:10:06,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:10:06,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:10:06,791 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:10:06,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:10:07,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:10:07,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:10:07,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:10:07,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:10:07,087 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:10:07,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-21 23:10:07,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe058731/c545d21800524104948b91790798825b/FLAGf1c0314f7 [2020-10-21 23:10:07,771 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:10:07,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-10-21 23:10:07,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe058731/c545d21800524104948b91790798825b/FLAGf1c0314f7 [2020-10-21 23:10:07,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe058731/c545d21800524104948b91790798825b [2020-10-21 23:10:07,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:10:07,995 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:10:07,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:10:07,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:10:08,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:10:08,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:10:07" (1/1) ... [2020-10-21 23:10:08,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6a4dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:08, skipping insertion in model container [2020-10-21 23:10:08,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:10:07" (1/1) ... [2020-10-21 23:10:08,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:10:08,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:10:08,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:10:08,814 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:10:08,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:10:09,282 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:10:09,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09 WrapperNode [2020-10-21 23:10:09,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:10:09,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:10:09,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:10:09,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:10:09,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:10:09,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:10:09,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:10:09,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:10:09,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (1/1) ... [2020-10-21 23:10:09,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:10:09,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:10:09,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:10:09,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:10:09,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (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 23:10:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:10:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:10:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:10:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:10:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:10:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-21 23:10:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:10:09,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:10:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:10:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-21 23:10:09,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-21 23:10:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:10:09,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:10:09,472 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 23:10:10,037 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:10:10,038 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-21 23:10:10,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:10:10 BoogieIcfgContainer [2020-10-21 23:10:10,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:10:10,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:10:10,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:10:10,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:10:10,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:10:07" (1/3) ... [2020-10-21 23:10:10,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:10:10, skipping insertion in model container [2020-10-21 23:10:10,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:10:09" (2/3) ... [2020-10-21 23:10:10,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:10:10, skipping insertion in model container [2020-10-21 23:10:10,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:10:10" (3/3) ... [2020-10-21 23:10:10,049 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-10-21 23:10:10,060 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:10:10,061 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:10:10,068 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-21 23:10:10,069 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:10:10,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,095 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,096 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,102 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,102 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,102 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,103 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:10:10,111 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 23:10:10,124 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-21 23:10:10,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:10:10,145 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:10:10,145 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:10:10,145 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:10:10,145 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:10:10,145 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:10:10,145 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:10:10,146 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:10:10,159 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:10:10,160 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 99 transitions, 206 flow [2020-10-21 23:10:10,162 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 99 transitions, 206 flow [2020-10-21 23:10:10,164 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 206 flow [2020-10-21 23:10:10,212 INFO L129 PetriNetUnfolder]: 7/110 cut-off events. [2020-10-21 23:10:10,213 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 23:10:10,217 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 7/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2020-10-21 23:10:10,219 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-10-21 23:10:11,948 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-21 23:10:12,067 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-21 23:10:12,274 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 23:10:12,417 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 23:10:12,864 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 23:10:13,010 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-21 23:10:13,198 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-21 23:10:13,384 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-21 23:10:13,388 INFO L131 LiptonReduction]: Checked pairs total: 287 [2020-10-21 23:10:13,388 INFO L133 LiptonReduction]: Total number of compositions: 124 [2020-10-21 23:10:13,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-10-21 23:10:13,401 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-10-21 23:10:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-21 23:10:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-21 23:10:13,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:10:13,408 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-21 23:10:13,409 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:10:13,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:10:13,413 INFO L82 PathProgramCache]: Analyzing trace with hash 432, now seen corresponding path program 1 times [2020-10-21 23:10:13,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:10:13,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354262546] [2020-10-21 23:10:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:10:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:10:13,681 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 23:10:13,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354262546] [2020-10-21 23:10:13,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:10:13,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-21 23:10:13,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288218779] [2020-10-21 23:10:13,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:10:13,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:10:13,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:10:13,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:10:13,707 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-10-21 23:10:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:10:13,721 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-21 23:10:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:10:13,723 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-21 23:10:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:10:13,731 INFO L225 Difference]: With dead ends: 18 [2020-10-21 23:10:13,732 INFO L226 Difference]: Without dead ends: 8 [2020-10-21 23:10:13,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:10:13,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-21 23:10:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-21 23:10:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-21 23:10:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-10-21 23:10:13,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-10-21 23:10:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:10:13,767 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-10-21 23:10:13,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:10:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-10-21 23:10:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 23:10:13,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:10:13,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 23:10:13,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:10:13,769 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:10:13,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:10:13,770 INFO L82 PathProgramCache]: Analyzing trace with hash 13206062, now seen corresponding path program 1 times [2020-10-21 23:10:13,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:10:13,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511634229] [2020-10-21 23:10:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:10:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:10:13,982 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 23:10:13,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511634229] [2020-10-21 23:10:13,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:10:13,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:10:13,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491092399] [2020-10-21 23:10:13,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:10:13,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:10:13,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:10:13,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:10:13,986 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-10-21 23:10:14,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:10:14,003 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-10-21 23:10:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:10:14,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 23:10:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:10:14,005 INFO L225 Difference]: With dead ends: 8 [2020-10-21 23:10:14,005 INFO L226 Difference]: Without dead ends: 6 [2020-10-21 23:10:14,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 23:10:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-10-21 23:10:14,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-10-21 23:10:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-21 23:10:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-10-21 23:10:14,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-10-21 23:10:14,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:10:14,009 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-10-21 23:10:14,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:10:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-10-21 23:10:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 23:10:14,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:10:14,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 23:10:14,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:10:14,010 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:10:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:10:14,011 INFO L82 PathProgramCache]: Analyzing trace with hash 409393719, now seen corresponding path program 1 times [2020-10-21 23:10:14,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:10:14,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774602456] [2020-10-21 23:10:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:10:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:10:14,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:10:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 23:10:14,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 23:10:14,147 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 23:10:14,147 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 23:10:14,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:10:14,148 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 23:10:14,153 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [383] [383] L1695-->L1711: Formula: (and (= ULTIMATE.start_ldv_assert_~expression_Out-262343325 |ULTIMATE.start_ldv_assert_#in~expression_In-262343325|) (not (= ULTIMATE.start_ldv_assert_~expression_Out-262343325 0)) (<= |ULTIMATE.start_module_init_#t~nondet34_In-262343325| 2147483647) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet34_In-262343325| 2147483648)) (= |ULTIMATE.start_reach_error_#t~nondet32.base_Out-262343325| |ULTIMATE.start_reach_error_#t~nondet32.base_In-262343325|) (= |ULTIMATE.start_reach_error_#t~nondet32.offset_Out-262343325| |ULTIMATE.start_reach_error_#t~nondet32.offset_In-262343325|)) InVars {ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_In-262343325|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_In-262343325|, ULTIMATE.start_module_init_#t~nondet34=|ULTIMATE.start_module_init_#t~nondet34_In-262343325|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-262343325|} OutVars{ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_Out-262343325|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_Out-262343325|, ULTIMATE.start_module_init_#t~nondet34=|ULTIMATE.start_module_init_#t~nondet34_In-262343325|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In-262343325|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-262343325} AuxVars[] AssignedVars[ULTIMATE.start_reach_error_#t~nondet32.offset, ULTIMATE.start_reach_error_#t~nondet32.base, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-10-21 23:10:14,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:10:14 BasicIcfg [2020-10-21 23:10:14,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:10:14,179 INFO L168 Benchmark]: Toolchain (without parser) took 6188.49 ms. Allocated memory was 140.5 MB in the beginning and 285.7 MB in the end (delta: 145.2 MB). Free memory was 100.0 MB in the beginning and 225.3 MB in the end (delta: -125.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,180 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1286.88 ms. Allocated memory was 140.5 MB in the beginning and 237.0 MB in the end (delta: 96.5 MB). Free memory was 98.9 MB in the beginning and 167.1 MB in the end (delta: -68.1 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.46 ms. Allocated memory is still 237.0 MB. Free memory was 167.1 MB in the beginning and 164.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,183 INFO L168 Benchmark]: Boogie Preprocessor took 47.88 ms. Allocated memory is still 237.0 MB. Free memory was 164.2 MB in the beginning and 161.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,184 INFO L168 Benchmark]: RCFGBuilder took 642.94 ms. Allocated memory is still 237.0 MB. Free memory was 161.3 MB in the beginning and 116.4 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2020-10-21 23:10:14,185 INFO L168 Benchmark]: TraceAbstraction took 4136.50 ms. Allocated memory was 237.0 MB in the beginning and 285.7 MB in the end (delta: 48.8 MB). Free memory was 115.0 MB in the beginning and 225.3 MB in the end (delta: -110.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:10:14,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1286.88 ms. Allocated memory was 140.5 MB in the beginning and 237.0 MB in the end (delta: 96.5 MB). Free memory was 98.9 MB in the beginning and 167.1 MB in the end (delta: -68.1 MB). Peak memory consumption was 75.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.46 ms. Allocated memory is still 237.0 MB. Free memory was 167.1 MB in the beginning and 164.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.88 ms. Allocated memory is still 237.0 MB. Free memory was 164.2 MB in the beginning and 161.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 642.94 ms. Allocated memory is still 237.0 MB. Free memory was 161.3 MB in the beginning and 116.4 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4136.50 ms. Allocated memory was 237.0 MB in the beginning and 285.7 MB in the end (delta: 48.8 MB). Free memory was 115.0 MB in the beginning and 225.3 MB in the end (delta: -110.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 126 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 95 PlacesBefore, 17 PlacesAfterwards, 99 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 124 TotalNumberOfCompositions, 287 MoverChecksTotal - CounterExampleResult [Line: 1693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={5:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={7:0}, pdev=2, t1={5:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...