/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:33:53,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:33:53,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:33:53,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:33:53,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:33:53,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:33:53,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:33:53,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:33:53,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:33:53,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:33:53,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:33:53,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:33:53,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:33:53,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:33:53,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:33:53,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:33:53,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:33:53,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:33:53,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:33:53,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:33:53,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:33:53,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:33:53,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:33:53,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:33:53,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:33:53,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:33:53,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:33:53,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:33:53,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:33:53,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:33:53,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:33:53,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:33:53,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:33:53,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:33:53,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:33:53,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:33:53,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:33:53,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:33:53,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:33:53,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:33:53,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:33:53,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:33:53,461 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:33:53,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:33:53,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:33:53,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:33:53,463 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:33:53,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:33:53,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:33:53,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:33:53,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:33:53,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:33:53,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:33:53,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:33:53,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:33:53,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:33:53,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:33:53,466 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:33:53,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:33:53,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:33:53,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:33:53,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:33:53,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:33:53,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:33:53,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:33:53,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:33:53,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:33:53,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:33:53,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:33:53,468 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:33:53,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:33:53,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:33:53,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:33:53,764 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:33:53,768 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:33:53,769 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:33:53,770 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:33:53,771 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-19 05:33:53,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76ed2186/3ed44ce94b0c4673a03b08439c23ccc9/FLAG32fe915ec [2019-12-19 05:33:54,431 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:33:54,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_pso.oepc.i [2019-12-19 05:33:54,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76ed2186/3ed44ce94b0c4673a03b08439c23ccc9/FLAG32fe915ec [2019-12-19 05:33:54,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76ed2186/3ed44ce94b0c4673a03b08439c23ccc9 [2019-12-19 05:33:54,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:33:54,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:33:54,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:54,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:33:54,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:33:54,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710c7798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:54, skipping insertion in model container [2019-12-19 05:33:54,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:54" (1/1) ... [2019-12-19 05:33:54,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:33:54,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:33:55,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:55,260 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:33:55,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:33:55,391 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:33:55,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55 WrapperNode [2019-12-19 05:33:55,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:55,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:55,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:33:55,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:33:55,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:33:55,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:33:55,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:33:55,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:33:55,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (1/1) ... [2019-12-19 05:33:55,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:33:55,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:33:55,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:33:55,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:33:55,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (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 [2019-12-19 05:33:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:33:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:33:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:33:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:33:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:33:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:33:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:33:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:33:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:33:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:33:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:33:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:33:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:33:55,563 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:33:55,929 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:33:55,929 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:33:55,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:55 BoogieIcfgContainer [2019-12-19 05:33:55,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:33:55,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:33:55,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:33:55,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:33:55,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:33:54" (1/3) ... [2019-12-19 05:33:55,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21915e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:55, skipping insertion in model container [2019-12-19 05:33:55,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:55" (2/3) ... [2019-12-19 05:33:55,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21915e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:33:55, skipping insertion in model container [2019-12-19 05:33:55,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:33:55" (3/3) ... [2019-12-19 05:33:55,939 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_pso.oepc.i [2019-12-19 05:33:55,949 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:33:55,949 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:33:55,956 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:33:55,957 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:33:55,986 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,987 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,987 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,987 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,988 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,988 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,990 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,990 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,996 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,996 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,996 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:55,997 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,003 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,003 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,004 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,012 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,012 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,012 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,012 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:33:56,032 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:33:56,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:33:56,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:33:56,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:33:56,050 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:33:56,050 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:33:56,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:33:56,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:33:56,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:33:56,063 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:33:56,162 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:33:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:33:56,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:33:56,184 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:56,185 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, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:56,185 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:56,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:56,193 INFO L82 PathProgramCache]: Analyzing trace with hash -856501925, now seen corresponding path program 1 times [2019-12-19 05:33:56,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:56,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251264642] [2019-12-19 05:33:56,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:56,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251264642] [2019-12-19 05:33:56,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:56,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:33:56,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183567258] [2019-12-19 05:33:56,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:33:56,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:56,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:33:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:33:56,638 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:33:56,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:56,807 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:33:56,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:33:56,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:33:56,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:56,854 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:33:56,856 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:33:56,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:33:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:33:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:33:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:33:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:33:56,957 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:33:56,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:56,958 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:33:56,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:33:56,958 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:33:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:33:56,963 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:56,963 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:56,963 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:56,964 INFO L82 PathProgramCache]: Analyzing trace with hash 709357799, now seen corresponding path program 1 times [2019-12-19 05:33:56,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:56,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307192392] [2019-12-19 05:33:56,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:57,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307192392] [2019-12-19 05:33:57,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:57,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:33:57,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547696659] [2019-12-19 05:33:57,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:33:57,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:57,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:33:57,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:33:57,157 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:33:57,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,232 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:33:57,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:33:57,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:33:57,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,238 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:33:57,238 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:33:57,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:33:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:33:57,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:33:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:33:57,270 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:33:57,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,270 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:33:57,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:33:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:33:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:33:57,273 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:57,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:57,273 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:57,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1444603190, now seen corresponding path program 1 times [2019-12-19 05:33:57,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:57,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736718538] [2019-12-19 05:33:57,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:57,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736718538] [2019-12-19 05:33:57,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:57,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:33:57,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521143750] [2019-12-19 05:33:57,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:33:57,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:57,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:33:57,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:33:57,404 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:33:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,497 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:33:57,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:57,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:33:57,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,500 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:33:57,501 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:33:57,501 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:33:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:33:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:33:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:33:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:33:57,515 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:33:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,515 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:33:57,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:33:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:33:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:57,517 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:57,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:57,517 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:57,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:57,518 INFO L82 PathProgramCache]: Analyzing trace with hash 318820434, now seen corresponding path program 1 times [2019-12-19 05:33:57,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:57,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111055545] [2019-12-19 05:33:57,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:57,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111055545] [2019-12-19 05:33:57,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:57,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:57,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712230938] [2019-12-19 05:33:57,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:57,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:57,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:57,710 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:33:57,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:57,876 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:33:57,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:57,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:57,882 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:33:57,882 INFO L226 Difference]: Without dead ends: 314 [2019-12-19 05:33:57,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-19 05:33:57,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2019-12-19 05:33:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-12-19 05:33:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 781 transitions. [2019-12-19 05:33:57,903 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 781 transitions. Word has length 35 [2019-12-19 05:33:57,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:57,903 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 781 transitions. [2019-12-19 05:33:57,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 781 transitions. [2019-12-19 05:33:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:57,906 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:57,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:57,906 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:57,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:57,907 INFO L82 PathProgramCache]: Analyzing trace with hash 944612746, now seen corresponding path program 2 times [2019-12-19 05:33:57,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:57,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455581699] [2019-12-19 05:33:57,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:58,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455581699] [2019-12-19 05:33:58,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:58,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:58,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744862198] [2019-12-19 05:33:58,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:58,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:58,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:58,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:58,121 INFO L87 Difference]: Start difference. First operand 305 states and 781 transitions. Second operand 7 states. [2019-12-19 05:33:58,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:58,269 INFO L93 Difference]: Finished difference Result 476 states and 1261 transitions. [2019-12-19 05:33:58,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:58,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:58,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:58,272 INFO L225 Difference]: With dead ends: 476 [2019-12-19 05:33:58,272 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:33:58,273 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:33:58,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 269. [2019-12-19 05:33:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-19 05:33:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-12-19 05:33:58,282 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-12-19 05:33:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:58,282 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-12-19 05:33:58,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-12-19 05:33:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:33:58,284 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:33:58,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:33:58,284 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:33:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:33:58,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1320097416, now seen corresponding path program 3 times [2019-12-19 05:33:58,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:33:58,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527874483] [2019-12-19 05:33:58,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:33:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:33:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:33:58,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527874483] [2019-12-19 05:33:58,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:33:58,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:33:58,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423522869] [2019-12-19 05:33:58,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:33:58,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:33:58,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:33:58,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:33:58,389 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 7 states. [2019-12-19 05:33:58,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:33:58,517 INFO L93 Difference]: Finished difference Result 215 states and 541 transitions. [2019-12-19 05:33:58,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:33:58,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:33:58,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:33:58,517 INFO L225 Difference]: With dead ends: 215 [2019-12-19 05:33:58,517 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:33:58,518 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:33:58,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:33:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:33:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:33:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:33:58,519 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:33:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:33:58,519 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:33:58,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:33:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:33:58,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:33:58,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:33:58 BasicIcfg [2019-12-19 05:33:58,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:33:58,528 INFO L168 Benchmark]: Toolchain (without parser) took 3820.56 ms. Allocated memory was 145.2 MB in the beginning and 249.0 MB in the end (delta: 103.8 MB). Free memory was 101.2 MB in the beginning and 156.4 MB in the end (delta: -55.2 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,529 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.50 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 157.9 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.62 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,531 INFO L168 Benchmark]: Boogie Preprocessor took 27.72 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,532 INFO L168 Benchmark]: RCFGBuilder took 452.92 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 133.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,533 INFO L168 Benchmark]: TraceAbstraction took 2593.38 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 132.6 MB in the beginning and 156.4 MB in the end (delta: -23.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:33:58,537 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.50 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 157.9 MB in the end (delta: -56.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.62 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.72 ms. Allocated memory is still 202.9 MB. Free memory was 155.2 MB in the beginning and 153.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.92 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 133.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2593.38 ms. Allocated memory was 202.9 MB in the beginning and 249.0 MB in the end (delta: 46.1 MB). Free memory was 132.6 MB in the beginning and 156.4 MB in the end (delta: -23.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 348 SDslu, 905 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 18586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...