/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/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:41:15,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:41:15,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:41:16,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:41:16,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:41:16,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:41:16,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:41:16,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:41:16,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:41:16,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:41:16,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:41:16,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:41:16,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:41:16,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:41:16,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:41:16,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:41:16,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:41:16,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:41:16,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:41:16,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:41:16,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:41:16,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:41:16,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:41:16,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:41:16,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:41:16,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:41:16,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:41:16,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:41:16,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:41:16,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:41:16,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:41:16,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:41:16,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:41:16,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:41:16,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:41:16,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:41:16,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 11:41:16,100 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:41:16,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:41:16,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:41:16,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:41:16,103 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:41:16,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:41:16,103 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:41:16,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:41:16,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:41:16,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:41:16,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:41:16,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:41:16,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:41:16,105 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:41:16,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:41:16,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:41:16,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:41:16,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:41:16,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:41:16,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:41:16,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:41:16,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:41:16,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:41:16,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 11:41:16,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:41:16,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:41:16,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:41:16,108 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 11:41:16,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:41:16,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:41:16,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:41:16,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:41:16,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:41:16,425 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:41:16,425 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2020-10-16 11:41:16,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0bf1df61/45455c7cbbd647a8a8d138763c60ef10/FLAG83b50624d [2020-10-16 11:41:17,080 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:41:17,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stateful01-1.i [2020-10-16 11:41:17,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0bf1df61/45455c7cbbd647a8a8d138763c60ef10/FLAG83b50624d [2020-10-16 11:41:17,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a0bf1df61/45455c7cbbd647a8a8d138763c60ef10 [2020-10-16 11:41:17,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:41:17,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:41:17,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:17,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:41:17,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:41:17,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:17" (1/1) ... [2020-10-16 11:41:17,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364a7c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:17, skipping insertion in model container [2020-10-16 11:41:17,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:41:17" (1/1) ... [2020-10-16 11:41:17,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:41:17,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:41:17,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:17,952 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:41:18,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:41:18,141 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:41:18,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18 WrapperNode [2020-10-16 11:41:18,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:41:18,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:18,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:41:18,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:41:18,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:41:18,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:41:18,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:41:18,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:41:18,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... [2020-10-16 11:41:18,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:41:18,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:41:18,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:41:18,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:41:18,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 11:41:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 11:41:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 11:41:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 11:41:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 11:41:18,301 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 11:41:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:41:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 11:41:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:41:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:41:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 11:41:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:41:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:41:18,304 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:41:18,665 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:41:18,666 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 11:41:18,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:18 BoogieIcfgContainer [2020-10-16 11:41:18,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:41:18,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:41:18,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:41:18,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:41:18,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:41:17" (1/3) ... [2020-10-16 11:41:18,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a657603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:18, skipping insertion in model container [2020-10-16 11:41:18,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:41:18" (2/3) ... [2020-10-16 11:41:18,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a657603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:41:18, skipping insertion in model container [2020-10-16 11:41:18,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:41:18" (3/3) ... [2020-10-16 11:41:18,679 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2020-10-16 11:41:18,693 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:41:18,693 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:41:18,701 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:41:18,703 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:41:18,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,765 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,766 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,782 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,782 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,802 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,803 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:41:18,831 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 11:41:18,849 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 11:41:18,878 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:41:18,878 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:41:18,879 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 11:41:18,879 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:41:18,879 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:41:18,879 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:41:18,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:41:18,880 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:41:18,904 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 11:41:18,905 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-16 11:41:18,908 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-16 11:41:18,911 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-10-16 11:41:18,970 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 11:41:18,970 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 11:41:18,974 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-10-16 11:41:18,976 INFO L117 LiptonReduction]: Number of co-enabled transitions 680 [2020-10-16 11:41:20,417 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-16 11:41:20,880 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-16 11:41:21,042 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-16 11:41:21,062 INFO L132 LiptonReduction]: Checked pairs total: 2757 [2020-10-16 11:41:21,062 INFO L134 LiptonReduction]: Total number of compositions: 53 [2020-10-16 11:41:21,072 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-10-16 11:41:21,103 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-16 11:41:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-16 11:41:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:41:21,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:21,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:21,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:21,155 INFO L82 PathProgramCache]: Analyzing trace with hash 535203952, now seen corresponding path program 1 times [2020-10-16 11:41:21,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:21,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800568565] [2020-10-16 11:41:21,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:21,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800568565] [2020-10-16 11:41:21,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:21,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:41:21,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487263512] [2020-10-16 11:41:21,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:41:21,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:21,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:41:21,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:41:21,453 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-10-16 11:41:21,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:21,518 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2020-10-16 11:41:21,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:41:21,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-16 11:41:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:21,535 INFO L225 Difference]: With dead ends: 150 [2020-10-16 11:41:21,535 INFO L226 Difference]: Without dead ends: 149 [2020-10-16 11:41:21,537 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 [2020-10-16 11:41:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-16 11:41:21,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-16 11:41:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-16 11:41:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2020-10-16 11:41:21,593 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2020-10-16 11:41:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:21,593 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2020-10-16 11:41:21,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:41:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2020-10-16 11:41:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:41:21,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:21,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:21,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:41:21,597 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:21,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1346228208, now seen corresponding path program 2 times [2020-10-16 11:41:21,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:21,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846129541] [2020-10-16 11:41:21,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:41:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:41:21,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846129541] [2020-10-16 11:41:21,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:41:21,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 11:41:21,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449245571] [2020-10-16 11:41:21,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:41:21,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:41:21,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:41:21,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:41:21,744 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 5 states. [2020-10-16 11:41:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:41:21,825 INFO L93 Difference]: Finished difference Result 149 states and 252 transitions. [2020-10-16 11:41:21,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:41:21,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-16 11:41:21,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:41:21,827 INFO L225 Difference]: With dead ends: 149 [2020-10-16 11:41:21,827 INFO L226 Difference]: Without dead ends: 122 [2020-10-16 11:41:21,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:41:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-16 11:41:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-16 11:41:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 11:41:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2020-10-16 11:41:21,845 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2020-10-16 11:41:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:41:21,845 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2020-10-16 11:41:21,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:41:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2020-10-16 11:41:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 11:41:21,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:41:21,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:41:21,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:41:21,848 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:41:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:41:21,848 INFO L82 PathProgramCache]: Analyzing trace with hash 352163958, now seen corresponding path program 1 times [2020-10-16 11:41:21,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:41:21,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196034910] [2020-10-16 11:41:21,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:41:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:21,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 11:41:21,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 11:41:21,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 11:41:21,973 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 11:41:21,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:41:22,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:41:22 BasicIcfg [2020-10-16 11:41:22,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:41:22,047 INFO L168 Benchmark]: Toolchain (without parser) took 4675.06 ms. Allocated memory was 140.0 MB in the beginning and 245.9 MB in the end (delta: 105.9 MB). Free memory was 101.8 MB in the beginning and 196.1 MB in the end (delta: -94.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,048 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.89 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 166.3 MB in the end (delta: -64.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.24 ms. Allocated memory is still 205.5 MB. Free memory was 165.3 MB in the beginning and 163.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,051 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 ms. Allocated memory is still 205.5 MB. Free memory was 163.4 MB in the beginning and 162.4 MB in the end (delta: 967.6 kB). Peak memory consumption was 967.6 kB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,052 INFO L168 Benchmark]: RCFGBuilder took 433.21 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 137.7 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:41:22,053 INFO L168 Benchmark]: TraceAbstraction took 3374.93 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 137.7 MB in the beginning and 196.1 MB in the end (delta: -58.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:41:22,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.89 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 166.3 MB in the end (delta: -64.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.24 ms. Allocated memory is still 205.5 MB. Free memory was 165.3 MB in the beginning and 163.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.91 ms. Allocated memory is still 205.5 MB. Free memory was 163.4 MB in the beginning and 162.4 MB in the end (delta: 967.6 kB). Peak memory consumption was 967.6 kB. Max. memory is 7.1 GB. * RCFGBuilder took 433.21 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 137.7 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3374.93 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 137.7 MB in the beginning and 196.1 MB in the end (delta: -58.4 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 336 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 100 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 82 PlacesBefore, 35 PlacesAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 2757 MoverChecksTotal - CounterExampleResult [Line: 708]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L673] 0 pthread_mutex_t ma, mb; [L674] 0 int data1, data2; [L697] 0 pthread_t t1, t2; [L700] 0 data1 = 10 [L701] 0 data2 = 10 [L702] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={6:0}] [L703] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={6:0}] [L688] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={6:0}] [L704] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={6:0}] [L691] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={6:0}] [L693] 2 return 0; [L678] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={6:0}] [L681] 1 data2++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={6:0}] [L683] 1 return 0; [L704] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={6:0}] [L705] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={6:0}] [L705] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={6:0}] [L706] COND TRUE 0 data1==16 && data2==5 [L708] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 75 SDtfs, 56 SDslu, 49 SDs, 0 SdLazy, 20 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 3984 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...