/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 11:46:36,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:46:36,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:46:36,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:46:36,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:46:36,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:46:36,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:46:36,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:46:36,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:46:36,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:46:36,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:46:36,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:46:36,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:46:36,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:46:36,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:46:36,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:46:36,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:46:36,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:46:36,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:46:36,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:46:36,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:46:36,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:46:36,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:46:36,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:46:36,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 11:46:36,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 11:46:36,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 11:46:36,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 11:46:36,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 11:46:36,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 11:46:36,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 11:46:36,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 11:46:36,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 11:46:36,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:46:36,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:46:36,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:46:36,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-18 11:46:36,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:46:36,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:46:36,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:46:36,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:46:36,505 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:46:36,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:46:36,506 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:46:36,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:46:36,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:46:36,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:46:36,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:46:36,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:46:36,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:46:36,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:46:36,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:46:36,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:46:36,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:46:36,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:46:36,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:46:36,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:46:36,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:46:36,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:46:36,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:46:36,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:46:36,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:46:36,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:46:36,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:46:36,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:46:36,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:46:36,798 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:46:36,799 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2019-12-18 11:46:36,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3da54ac2/b934237cc5f048799420e21e9f11a2d2/FLAG1b516d412 [2019-12-18 11:46:37,414 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:46:37,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2019-12-18 11:46:37,428 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3da54ac2/b934237cc5f048799420e21e9f11a2d2/FLAG1b516d412 [2019-12-18 11:46:37,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3da54ac2/b934237cc5f048799420e21e9f11a2d2 [2019-12-18 11:46:37,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:46:37,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:46:37,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:46:37,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:46:37,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:46:37,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:46:37" (1/1) ... [2019-12-18 11:46:37,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c2c793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:37, skipping insertion in model container [2019-12-18 11:46:37,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:46:37" (1/1) ... [2019-12-18 11:46:37,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:46:37,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:46:38,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:46:38,385 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:46:38,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:46:38,499 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:46:38,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38 WrapperNode [2019-12-18 11:46:38,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:46:38,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:46:38,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:46:38,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:46:38,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:46:38,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:46:38,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:46:38,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:46:38,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (1/1) ... [2019-12-18 11:46:38,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:46:38,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:46:38,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:46:38,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:46:38,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (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 [2019-12-18 11:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 11:46:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-18 11:46:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-18 11:46:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-12-18 11:46:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-12-18 11:46:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:46:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-18 11:46:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:46:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:46:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 11:46:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:46:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:46:38,655 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 11:46:39,087 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:46:39,088 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-18 11:46:39,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:46:39 BoogieIcfgContainer [2019-12-18 11:46:39,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:46:39,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:46:39,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:46:39,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:46:39,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:46:37" (1/3) ... [2019-12-18 11:46:39,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42193c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:46:39, skipping insertion in model container [2019-12-18 11:46:39,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:46:38" (2/3) ... [2019-12-18 11:46:39,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42193c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:46:39, skipping insertion in model container [2019-12-18 11:46:39,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:46:39" (3/3) ... [2019-12-18 11:46:39,102 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2019-12-18 11:46:39,114 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:46:39,114 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:46:39,125 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 11:46:39,127 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:46:39,162 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,162 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,163 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,163 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,164 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,164 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,164 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,165 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,165 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,165 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,166 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,166 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,166 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,166 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,167 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,168 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,169 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,169 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,169 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,169 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,170 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,170 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,172 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,173 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,173 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,174 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,180 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,181 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,181 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,181 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,181 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,182 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,182 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,182 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,192 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,192 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,192 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,193 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,194 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,194 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:46:39,223 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-18 11:46:39,245 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:46:39,245 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:46:39,245 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:46:39,245 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:46:39,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:46:39,246 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:46:39,246 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:46:39,246 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:46:39,270 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions [2019-12-18 11:46:39,272 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions [2019-12-18 11:46:39,321 INFO L126 PetriNetUnfolder]: 2/78 cut-off events. [2019-12-18 11:46:39,322 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:46:39,330 INFO L76 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs. 19/95 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2019-12-18 11:46:39,334 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions [2019-12-18 11:46:39,385 INFO L126 PetriNetUnfolder]: 2/78 cut-off events. [2019-12-18 11:46:39,386 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:46:39,388 INFO L76 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs. 19/95 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2019-12-18 11:46:39,390 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 680 [2019-12-18 11:46:39,392 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:46:41,094 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-12-18 11:46:41,683 WARN L192 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-12-18 11:46:41,900 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-12-18 11:46:41,909 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1930 [2019-12-18 11:46:41,909 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2019-12-18 11:46:41,913 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions [2019-12-18 11:46:41,930 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2019-12-18 11:46:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-18 11:46:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-18 11:46:41,944 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:46:41,945 INFO L411 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] [2019-12-18 11:46:41,946 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:46:41,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:46:41,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1542005391, now seen corresponding path program 1 times [2019-12-18 11:46:41,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:46:41,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160226012] [2019-12-18 11:46:41,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:46:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:46:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:46:42,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160226012] [2019-12-18 11:46:42,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:46:42,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:46:42,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421686652] [2019-12-18 11:46:42,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:46:42,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:46:42,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:46:42,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:46:42,194 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-12-18 11:46:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:46:42,271 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2019-12-18 11:46:42,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:46:42,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-18 11:46:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:46:42,299 INFO L225 Difference]: With dead ends: 150 [2019-12-18 11:46:42,306 INFO L226 Difference]: Without dead ends: 149 [2019-12-18 11:46:42,308 INFO L631 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 [2019-12-18 11:46:42,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-12-18 11:46:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-12-18 11:46:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-12-18 11:46:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2019-12-18 11:46:42,393 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2019-12-18 11:46:42,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:46:42,393 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2019-12-18 11:46:42,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:46:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2019-12-18 11:46:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-18 11:46:42,396 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:46:42,396 INFO L411 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] [2019-12-18 11:46:42,397 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:46:42,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:46:42,398 INFO L82 PathProgramCache]: Analyzing trace with hash -730981135, now seen corresponding path program 2 times [2019-12-18 11:46:42,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:46:42,399 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926184546] [2019-12-18 11:46:42,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:46:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:46:42,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:46:42,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926184546] [2019-12-18 11:46:42,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:46:42,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-18 11:46:42,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071729323] [2019-12-18 11:46:42,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:46:42,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:46:42,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:46:42,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:46:42,535 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 5 states. [2019-12-18 11:46:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:46:42,589 INFO L93 Difference]: Finished difference Result 149 states and 252 transitions. [2019-12-18 11:46:42,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:46:42,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-18 11:46:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:46:42,592 INFO L225 Difference]: With dead ends: 149 [2019-12-18 11:46:42,592 INFO L226 Difference]: Without dead ends: 122 [2019-12-18 11:46:42,593 INFO L631 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 [2019-12-18 11:46:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-18 11:46:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-12-18 11:46:42,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-18 11:46:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2019-12-18 11:46:42,602 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2019-12-18 11:46:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:46:42,602 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2019-12-18 11:46:42,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:46:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2019-12-18 11:46:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-18 11:46:42,604 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:46:42,604 INFO L411 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] [2019-12-18 11:46:42,604 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:46:42,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:46:42,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1725045385, now seen corresponding path program 1 times [2019-12-18 11:46:42,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:46:42,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188941554] [2019-12-18 11:46:42,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:46:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:46:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:46:42,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188941554] [2019-12-18 11:46:42,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:46:42,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:46:42,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454764555] [2019-12-18 11:46:42,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 11:46:42,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:46:42,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 11:46:42,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-18 11:46:42,777 INFO L87 Difference]: Start difference. First operand 122 states and 201 transitions. Second operand 6 states. [2019-12-18 11:46:42,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:46:42,844 INFO L93 Difference]: Finished difference Result 164 states and 266 transitions. [2019-12-18 11:46:42,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 11:46:42,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-18 11:46:42,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:46:42,846 INFO L225 Difference]: With dead ends: 164 [2019-12-18 11:46:42,846 INFO L226 Difference]: Without dead ends: 98 [2019-12-18 11:46:42,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-18 11:46:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-18 11:46:42,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2019-12-18 11:46:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-12-18 11:46:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 161 transitions. [2019-12-18 11:46:42,858 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 161 transitions. Word has length 25 [2019-12-18 11:46:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:46:42,859 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 161 transitions. [2019-12-18 11:46:42,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 11:46:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 161 transitions. [2019-12-18 11:46:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-18 11:46:42,860 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:46:42,861 INFO L411 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] [2019-12-18 11:46:42,861 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 11:46:42,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:46:42,861 INFO L82 PathProgramCache]: Analyzing trace with hash -864016559, now seen corresponding path program 2 times [2019-12-18 11:46:42,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:46:42,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496546622] [2019-12-18 11:46:42,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:46:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:46:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 11:46:42,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496546622] [2019-12-18 11:46:42,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:46:42,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:46:42,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357354452] [2019-12-18 11:46:42,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 11:46:42,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:46:42,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 11:46:42,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-18 11:46:42,951 INFO L87 Difference]: Start difference. First operand 98 states and 161 transitions. Second operand 6 states. [2019-12-18 11:46:42,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:46:42,987 INFO L93 Difference]: Finished difference Result 97 states and 160 transitions. [2019-12-18 11:46:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 11:46:42,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-18 11:46:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:46:42,991 INFO L225 Difference]: With dead ends: 97 [2019-12-18 11:46:42,991 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 11:46:42,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-18 11:46:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 11:46:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 11:46:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 11:46:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 11:46:42,992 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-12-18 11:46:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:46:42,992 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 11:46:42,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 11:46:42,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 11:46:42,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 11:46:42,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:46:42 BasicIcfg [2019-12-18 11:46:42,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 11:46:42,998 INFO L168 Benchmark]: Toolchain (without parser) took 5212.43 ms. Allocated memory was 146.3 MB in the beginning and 243.8 MB in the end (delta: 97.5 MB). Free memory was 103.0 MB in the beginning and 129.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:42,998 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.8 MB in the beginning and 160.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,001 INFO L168 Benchmark]: Boogie Preprocessor took 34.22 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,002 INFO L168 Benchmark]: RCFGBuilder took 502.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 133.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,003 INFO L168 Benchmark]: TraceAbstraction took 3904.82 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 132.6 MB in the beginning and 129.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2019-12-18 11:46:43,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.99 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.8 MB in the beginning and 160.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.22 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 156.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 502.67 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 133.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3904.82 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 132.6 MB in the beginning and 129.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 82 ProgramPointsBefore, 34 ProgramPointsAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 289 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1930 CheckedPairsTotal, 51 TotalNumberOfCompositions - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 148 SDtfs, 80 SDslu, 267 SDs, 0 SdLazy, 60 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 12048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...