/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:34:52,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:34:52,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:34:52,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:34:52,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:34:52,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:34:52,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:34:52,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:34:52,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:34:52,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:34:52,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:34:52,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:34:52,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:34:52,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:34:52,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:34:52,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:34:52,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:34:52,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:34:52,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:34:52,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:34:52,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:34:52,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:34:52,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:34:52,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:34:52,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:34:52,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:34:52,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:34:52,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:34:52,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:34:52,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:34:52,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:34:52,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:34:52,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:34:52,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:34:52,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:34:52,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:34:52,126 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-VariableLbe-MCR.epf [2019-12-27 22:34:52,141 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:34:52,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:34:52,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:34:52,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:34:52,143 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:34:52,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:34:52,143 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:34:52,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:34:52,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:34:52,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:34:52,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:34:52,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:34:52,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:34:52,145 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:34:52,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:34:52,145 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:34:52,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:34:52,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:34:52,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:34:52,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:34:52,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:34:52,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:34:52,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:34:52,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:34:52,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:34:52,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:34:52,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:34:52,147 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:34:52,148 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:34:52,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:34:52,148 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:34:52,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:34:52,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:34:52,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:34:52,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:34:52,441 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:34:52,441 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:34:52,442 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 22:34:52,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4427acc0/68923f1ed26841ceb60f4dcdf1c87186/FLAGe1937260a [2019-12-27 22:34:53,098 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:34:53,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 22:34:53,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4427acc0/68923f1ed26841ceb60f4dcdf1c87186/FLAGe1937260a [2019-12-27 22:34:53,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4427acc0/68923f1ed26841ceb60f4dcdf1c87186 [2019-12-27 22:34:53,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:34:53,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:34:53,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:34:53,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:34:53,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:34:53,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:34:53" (1/1) ... [2019-12-27 22:34:53,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78fb4df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:53, skipping insertion in model container [2019-12-27 22:34:53,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:34:53" (1/1) ... [2019-12-27 22:34:53,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:34:53,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:34:54,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:34:54,026 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:34:54,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:34:54,195 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:34:54,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54 WrapperNode [2019-12-27 22:34:54,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:34:54,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:34:54,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:34:54,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:34:54,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:34:54,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:34:54,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:34:54,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:34:54,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (1/1) ... [2019-12-27 22:34:54,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:34:54,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:34:54,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:34:54,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:34:54,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (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 [2019-12-27 22:34:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:34:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:34:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:34:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:34:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:34:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:34:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:34:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:34:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:34:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:34:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:34:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:34:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:34:54,336 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 22:34:54,706 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:34:54,706 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:34:54,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:34:54 BoogieIcfgContainer [2019-12-27 22:34:54,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:34:54,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:34:54,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:34:54,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:34:54,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:34:53" (1/3) ... [2019-12-27 22:34:54,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527ecb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:34:54, skipping insertion in model container [2019-12-27 22:34:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:34:54" (2/3) ... [2019-12-27 22:34:54,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527ecb4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:34:54, skipping insertion in model container [2019-12-27 22:34:54,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:34:54" (3/3) ... [2019-12-27 22:34:54,715 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2019-12-27 22:34:54,724 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:34:54,725 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:34:54,732 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:34:54,733 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:34:54,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,761 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,761 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,761 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,762 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,763 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,763 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,764 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,765 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,769 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,769 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,770 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,770 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,777 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,778 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,779 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,779 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,783 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,783 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,783 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,784 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:34:54,808 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:34:54,824 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:34:54,824 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:34:54,824 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:34:54,824 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:34:54,824 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:34:54,825 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:34:54,825 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:34:54,825 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:34:54,839 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:34:54,841 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:34:54,887 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:34:54,888 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:34:54,895 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:34:54,898 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:34:54,919 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:34:54,919 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:34:54,923 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:34:54,925 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:34:54,927 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:34:56,227 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:34:56,379 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-27 22:34:56,379 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 22:34:56,383 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:34:56,393 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:34:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:34:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:34:56,404 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:34:56,405 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:34:56,406 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:34:56,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:34:56,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-27 22:34:56,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:34:56,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117516272] [2019-12-27 22:34:56,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:34:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:34:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:34:56,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117516272] [2019-12-27 22:34:56,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:34:56,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:34:56,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1774974362] [2019-12-27 22:34:56,685 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:34:56,695 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:34:56,711 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:34:56,711 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:34:56,715 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:34:56,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:34:56,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:34:56,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:34:56,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:34:56,735 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:34:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:34:56,754 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:34:56,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:34:56,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:34:56,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:34:56,767 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:34:56,767 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:34:56,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:34:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:34:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:34:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:34:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:34:56,804 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:34:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:34:56,805 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:34:56,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:34:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:34:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:34:56,807 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:34:56,807 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:34:56,807 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:34:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:34:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash -731020953, now seen corresponding path program 1 times [2019-12-27 22:34:56,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:34:56,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241909714] [2019-12-27 22:34:56,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:34:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:34:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:34:56,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241909714] [2019-12-27 22:34:56,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:34:56,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:34:56,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2091677592] [2019-12-27 22:34:56,922 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:34:56,925 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:34:56,931 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:34:56,931 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:34:56,932 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:34:56,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:34:56,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:34:56,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:34:56,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:34:56,934 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 22:34:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:34:56,980 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 22:34:56,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:34:56,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:34:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:34:56,982 INFO L225 Difference]: With dead ends: 36 [2019-12-27 22:34:56,982 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 22:34:56,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:34:56,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 22:34:56,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 22:34:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 22:34:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 22:34:56,991 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 22:34:56,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:34:56,994 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 22:34:56,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:34:56,994 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 22:34:56,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:34:56,995 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:34:56,995 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:34:56,996 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:34:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:34:56,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1301449846, now seen corresponding path program 1 times [2019-12-27 22:34:56,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:34:56,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765539912] [2019-12-27 22:34:56,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:34:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:34:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:34:57,105 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765539912] [2019-12-27 22:34:57,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:34:57,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:34:57,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1156333924] [2019-12-27 22:34:57,106 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:34:57,108 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:34:57,116 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:34:57,117 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:34:57,118 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:34:57,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:34:57,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:34:57,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:34:57,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:34:57,120 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 22:34:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:34:57,127 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 22:34:57,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:34:57,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:34:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:34:57,128 INFO L225 Difference]: With dead ends: 27 [2019-12-27 22:34:57,129 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 22:34:57,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:34:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 22:34:57,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 22:34:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 22:34:57,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 22:34:57,136 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 22:34:57,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:34:57,137 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 22:34:57,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:34:57,137 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 22:34:57,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:34:57,137 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:34:57,138 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:34:57,138 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:34:57,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:34:57,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1005356980, now seen corresponding path program 1 times [2019-12-27 22:34:57,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:34:57,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366881324] [2019-12-27 22:34:57,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:34:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:34:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:34:57,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366881324] [2019-12-27 22:34:57,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:34:57,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:34:57,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [429042207] [2019-12-27 22:34:57,201 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:34:57,202 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:34:57,207 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 22:34:57,207 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:34:57,207 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:34:57,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:34:57,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:34:57,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:34:57,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:34:57,209 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 22:34:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:34:57,231 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 22:34:57,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:34:57,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:34:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:34:57,232 INFO L225 Difference]: With dead ends: 29 [2019-12-27 22:34:57,232 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:34:57,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:34:57,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:34:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:34:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:34:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:34:57,239 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 22:34:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:34:57,239 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:34:57,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:34:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:34:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:34:57,240 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:34:57,240 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:34:57,241 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:34:57,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:34:57,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 2 times [2019-12-27 22:34:57,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:34:57,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275419783] [2019-12-27 22:34:57,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:34:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:34:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 22:34:57,290 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275419783] [2019-12-27 22:34:57,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:34:57,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:34:57,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1365657809] [2019-12-27 22:34:57,291 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:34:57,294 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:34:57,296 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:34:57,296 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:34:57,297 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:34:57,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:34:57,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:34:57,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:34:57,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:34:57,298 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 22:34:57,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:34:57,317 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:34:57,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:34:57,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:34:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:34:57,317 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:34:57,318 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:34:57,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:34:57,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:34:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:34:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:34:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:34:57,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:34:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:34:57,320 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:34:57,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:34:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:34:57,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:34:57,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:34:57 BasicIcfg [2019-12-27 22:34:57,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:34:57,325 INFO L168 Benchmark]: Toolchain (without parser) took 3907.89 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 100.5 MB in the beginning and 155.3 MB in the end (delta: -54.9 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,326 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.06 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.0 MB in the beginning and 158.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.25 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,331 INFO L168 Benchmark]: Boogie Preprocessor took 23.40 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,332 INFO L168 Benchmark]: RCFGBuilder took 435.79 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 134.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,333 INFO L168 Benchmark]: TraceAbstraction took 2614.93 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 133.9 MB in the beginning and 155.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:34:57,338 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.06 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.0 MB in the beginning and 158.4 MB in the end (delta: -58.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.25 ms. Allocated memory is still 202.4 MB. Free memory was 158.4 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.40 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.79 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 134.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2614.93 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 133.9 MB in the beginning and 155.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 20 SDslu, 35 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...