/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-MCR.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:38:25,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:38:25,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:38:25,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:38:25,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:38:25,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:38:25,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:38:25,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:38:25,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:38:25,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:38:25,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:38:25,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:38:25,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:38:25,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:38:25,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:38:25,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:38:25,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:38:25,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:38:25,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:38:25,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:38:25,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:38:25,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:38:25,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:38:25,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:38:25,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:38:25,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:38:25,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:38:25,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:38:25,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:38:25,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:38:25,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:38:25,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:38:25,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:38:25,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:38:25,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:38:25,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:38:25,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:38:25,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:38:25,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:38:25,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:38:25,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:38:25,716 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-MCR.epf [2019-12-28 05:38:25,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:38:25,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:38:25,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:38:25,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:38:25,735 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:38:25,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:38:25,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:38:25,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:38:25,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:38:25,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:38:25,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:38:25,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:38:25,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:38:25,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:38:25,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:38:25,738 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:38:25,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:38:25,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:38:25,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:38:25,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:38:25,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:38:25,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:38:25,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:38:25,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:38:25,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:38:25,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:38:25,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:38:25,742 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:38:25,743 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:38:25,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:38:25,743 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:38:25,743 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:38:26,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:38:26,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:38:26,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:38:26,036 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:38:26,037 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:38:26,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2019-12-28 05:38:26,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78af44b75/26862c4a931944adad582e8aece021bc/FLAG4f8d78535 [2019-12-28 05:38:26,785 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:38:26,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2019-12-28 05:38:26,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78af44b75/26862c4a931944adad582e8aece021bc/FLAG4f8d78535 [2019-12-28 05:38:26,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78af44b75/26862c4a931944adad582e8aece021bc [2019-12-28 05:38:26,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:38:26,991 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:38:26,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:38:26,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:38:26,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:38:26,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:38:26" (1/1) ... [2019-12-28 05:38:27,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745088c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:26, skipping insertion in model container [2019-12-28 05:38:27,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:38:26" (1/1) ... [2019-12-28 05:38:27,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:38:27,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:38:27,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:38:27,871 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:38:27,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:38:28,309 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:38:28,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28 WrapperNode [2019-12-28 05:38:28,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:38:28,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:38:28,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:38:28,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:38:28,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:38:28,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:38:28,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:38:28,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:38:28,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (1/1) ... [2019-12-28 05:38:28,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:38:28,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:38:28,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:38:28,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:38:28,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (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 [2019-12-28 05:38:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:38:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-28 05:38:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-28 05:38:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-28 05:38:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:38:28,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:38:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:38:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-28 05:38:28,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-28 05:38:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:38:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-28 05:38:28,502 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:38:29,171 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:38:29,172 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-28 05:38:29,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:38:29 BoogieIcfgContainer [2019-12-28 05:38:29,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:38:29,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:38:29,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:38:29,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:38:29,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:38:26" (1/3) ... [2019-12-28 05:38:29,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:38:29, skipping insertion in model container [2019-12-28 05:38:29,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:38:28" (2/3) ... [2019-12-28 05:38:29,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:38:29, skipping insertion in model container [2019-12-28 05:38:29,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:38:29" (3/3) ... [2019-12-28 05:38:29,182 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-12-28 05:38:29,191 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:38:29,191 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:38:29,198 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-28 05:38:29,200 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:38:29,226 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,226 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,226 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,227 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,227 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,227 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,227 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,228 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,228 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,228 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,228 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,229 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,229 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,229 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,233 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,234 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,234 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,234 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,234 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,234 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,235 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:38:29,263 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-28 05:38:29,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:38:29,286 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:38:29,286 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:38:29,287 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:38:29,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:38:29,287 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:38:29,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:38:29,288 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:38:29,308 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 84 transitions [2019-12-28 05:38:29,331 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 273 states. [2019-12-28 05:38:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2019-12-28 05:38:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-28 05:38:29,342 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:38:29,345 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] [2019-12-28 05:38:29,346 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:38:29,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:38:29,355 INFO L82 PathProgramCache]: Analyzing trace with hash 663703428, now seen corresponding path program 1 times [2019-12-28 05:38:29,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:38:29,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937629165] [2019-12-28 05:38:29,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:38:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:38:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:38:29,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937629165] [2019-12-28 05:38:29,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:38:29,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:38:29,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [32089475] [2019-12-28 05:38:29,861 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:38:29,871 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:38:29,892 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 24 states and 23 transitions. [2019-12-28 05:38:29,892 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:38:29,897 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:38:29,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:38:29,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:38:29,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:38:29,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:38:29,916 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 5 states. [2019-12-28 05:38:30,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:38:30,086 INFO L93 Difference]: Finished difference Result 271 states and 453 transitions. [2019-12-28 05:38:30,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:38:30,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-12-28 05:38:30,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:38:30,111 INFO L225 Difference]: With dead ends: 271 [2019-12-28 05:38:30,112 INFO L226 Difference]: Without dead ends: 235 [2019-12-28 05:38:30,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:38:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-12-28 05:38:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2019-12-28 05:38:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-12-28 05:38:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 396 transitions. [2019-12-28 05:38:30,200 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 396 transitions. Word has length 23 [2019-12-28 05:38:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:38:30,200 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 396 transitions. [2019-12-28 05:38:30,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:38:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 396 transitions. [2019-12-28 05:38:30,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:38:30,202 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:38:30,202 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] [2019-12-28 05:38:30,203 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:38:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:38:30,203 INFO L82 PathProgramCache]: Analyzing trace with hash -611752670, now seen corresponding path program 1 times [2019-12-28 05:38:30,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:38:30,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789288505] [2019-12-28 05:38:30,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:38:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:38:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:38:30,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789288505] [2019-12-28 05:38:30,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:38:30,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:38:30,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [844418001] [2019-12-28 05:38:30,389 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:38:30,394 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:38:30,398 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:38:30,399 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:38:30,399 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:38:30,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:38:30,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:38:30,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:38:30,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:38:30,402 INFO L87 Difference]: Start difference. First operand 235 states and 396 transitions. Second operand 5 states. [2019-12-28 05:38:30,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:38:30,547 INFO L93 Difference]: Finished difference Result 233 states and 394 transitions. [2019-12-28 05:38:30,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:38:30,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-28 05:38:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:38:30,551 INFO L225 Difference]: With dead ends: 233 [2019-12-28 05:38:30,552 INFO L226 Difference]: Without dead ends: 227 [2019-12-28 05:38:30,553 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:38:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-12-28 05:38:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-12-28 05:38:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-12-28 05:38:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 388 transitions. [2019-12-28 05:38:30,588 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 388 transitions. Word has length 31 [2019-12-28 05:38:30,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:38:30,588 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 388 transitions. [2019-12-28 05:38:30,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:38:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 388 transitions. [2019-12-28 05:38:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-28 05:38:30,592 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:38:30,592 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, 1] [2019-12-28 05:38:30,592 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:38:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:38:30,593 INFO L82 PathProgramCache]: Analyzing trace with hash -276527378, now seen corresponding path program 1 times [2019-12-28 05:38:30,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:38:30,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334212801] [2019-12-28 05:38:30,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:38:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:38:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:38:30,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334212801] [2019-12-28 05:38:30,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:38:30,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:38:30,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1719889207] [2019-12-28 05:38:30,714 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:38:30,720 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:38:30,726 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 36 transitions. [2019-12-28 05:38:30,726 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:38:30,727 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:38:30,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:38:30,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:38:30,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:38:30,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:38:30,728 INFO L87 Difference]: Start difference. First operand 227 states and 388 transitions. Second operand 5 states. [2019-12-28 05:38:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:38:30,816 INFO L93 Difference]: Finished difference Result 197 states and 330 transitions. [2019-12-28 05:38:30,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:38:30,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-28 05:38:30,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:38:30,818 INFO L225 Difference]: With dead ends: 197 [2019-12-28 05:38:30,818 INFO L226 Difference]: Without dead ends: 157 [2019-12-28 05:38:30,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:38:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-12-28 05:38:30,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-12-28 05:38:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-12-28 05:38:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 255 transitions. [2019-12-28 05:38:30,827 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 255 transitions. Word has length 36 [2019-12-28 05:38:30,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:38:30,827 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 255 transitions. [2019-12-28 05:38:30,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:38:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 255 transitions. [2019-12-28 05:38:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-12-28 05:38:30,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:38:30,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:38:30,831 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:38:30,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:38:30,831 INFO L82 PathProgramCache]: Analyzing trace with hash 398198330, now seen corresponding path program 1 times [2019-12-28 05:38:30,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:38:30,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299307744] [2019-12-28 05:38:30,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:38:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:38:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:38:30,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299307744] [2019-12-28 05:38:30,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:38:30,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:38:30,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1209272367] [2019-12-28 05:38:30,978 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:38:30,991 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:38:31,077 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 157 states and 255 transitions. [2019-12-28 05:38:31,077 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:38:31,080 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:38:31,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:38:31,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:38:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:38:31,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:38:31,082 INFO L87 Difference]: Start difference. First operand 157 states and 255 transitions. Second operand 5 states. [2019-12-28 05:38:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:38:31,176 INFO L93 Difference]: Finished difference Result 155 states and 253 transitions. [2019-12-28 05:38:31,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:38:31,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-12-28 05:38:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:38:31,177 INFO L225 Difference]: With dead ends: 155 [2019-12-28 05:38:31,177 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:38:31,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:38:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:38:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:38:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:38:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:38:31,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2019-12-28 05:38:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:38:31,179 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:38:31,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:38:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:38:31,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:38:31,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:38:31 BasicIcfg [2019-12-28 05:38:31,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:38:31,190 INFO L168 Benchmark]: Toolchain (without parser) took 4197.97 ms. Allocated memory was 137.4 MB in the beginning and 250.6 MB in the end (delta: 113.2 MB). Free memory was 98.8 MB in the beginning and 191.6 MB in the end (delta: -92.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,192 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1318.25 ms. Allocated memory was 137.4 MB in the beginning and 234.4 MB in the end (delta: 97.0 MB). Free memory was 98.6 MB in the beginning and 172.8 MB in the end (delta: -74.2 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.94 ms. Allocated memory is still 234.4 MB. Free memory was 172.8 MB in the beginning and 169.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,201 INFO L168 Benchmark]: Boogie Preprocessor took 44.25 ms. Allocated memory is still 234.4 MB. Free memory was 169.8 MB in the beginning and 166.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,203 INFO L168 Benchmark]: RCFGBuilder took 747.57 ms. Allocated memory is still 234.4 MB. Free memory was 166.9 MB in the beginning and 129.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:38:31,204 INFO L168 Benchmark]: TraceAbstraction took 2012.04 ms. Allocated memory was 234.4 MB in the beginning and 250.6 MB in the end (delta: 16.3 MB). Free memory was 129.1 MB in the beginning and 191.6 MB in the end (delta: -62.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 05:38:31,217 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1318.25 ms. Allocated memory was 137.4 MB in the beginning and 234.4 MB in the end (delta: 97.0 MB). Free memory was 98.6 MB in the beginning and 172.8 MB in the end (delta: -74.2 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.94 ms. Allocated memory is still 234.4 MB. Free memory was 172.8 MB in the beginning and 169.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.25 ms. Allocated memory is still 234.4 MB. Free memory was 169.8 MB in the beginning and 166.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 747.57 ms. Allocated memory is still 234.4 MB. Free memory was 166.9 MB in the beginning and 129.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2012.04 ms. Allocated memory was 234.4 MB in the beginning and 250.6 MB in the end (delta: 16.3 MB). Free memory was 129.1 MB in the beginning and 191.6 MB in the end (delta: -62.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 307 SDslu, 560 SDs, 0 SdLazy, 65 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred 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, 0.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 7318 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...