/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:08:36,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:08:36,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:08:36,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:08:36,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:08:36,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:08:36,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:08:36,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:08:36,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:08:36,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:08:36,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:08:36,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:08:36,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:08:36,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:08:36,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:08:36,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:08:36,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:08:36,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:08:36,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:08:36,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:08:36,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:08:36,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:08:36,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:08:36,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:08:36,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:08:36,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:08:36,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:08:36,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:08:36,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:08:36,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:08:36,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:08:36,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:08:36,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:08:36,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:08:36,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:08:36,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:08:36,111 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-SemanticLbe-MCR.epf [2019-12-27 18:08:36,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:08:36,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:08:36,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:08:36,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:08:36,139 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:08:36,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:08:36,140 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:08:36,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:08:36,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:08:36,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:08:36,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:08:36,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:08:36,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:08:36,141 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:08:36,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:08:36,142 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:08:36,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:08:36,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:08:36,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:08:36,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:08:36,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:08:36,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:08:36,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:08:36,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:08:36,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:08:36,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:08:36,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:08:36,144 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:08:36,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:08:36,145 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:08:36,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:08:36,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:08:36,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:08:36,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:08:36,446 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:08:36,447 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:08:36,449 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-27 18:08:36,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35e5489e/c4028bc6f9ea47e5a92a16943db1b226/FLAGb10ac5a4a [2019-12-27 18:08:37,090 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:08:37,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.opt.i [2019-12-27 18:08:37,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35e5489e/c4028bc6f9ea47e5a92a16943db1b226/FLAGb10ac5a4a [2019-12-27 18:08:37,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35e5489e/c4028bc6f9ea47e5a92a16943db1b226 [2019-12-27 18:08:37,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:08:37,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:08:37,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:08:37,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:08:37,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:08:37,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:08:37" (1/1) ... [2019-12-27 18:08:37,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6892a9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:37, skipping insertion in model container [2019-12-27 18:08:37,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:08:37" (1/1) ... [2019-12-27 18:08:37,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:08:37,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:08:37,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:08:37,989 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:08:38,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:08:38,117 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:08:38,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38 WrapperNode [2019-12-27 18:08:38,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:08:38,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:08:38,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:08:38,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:08:38,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:08:38,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:08:38,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:08:38,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:08:38,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... [2019-12-27 18:08:38,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:08:38,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:08:38,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:08:38,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:08:38,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:08:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:08:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:08:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:08:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:08:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:08:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:08:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:08:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:08:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:08:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:08:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:08:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:08:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:08:38,253 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 18:08:38,600 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:08:38,602 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:08:38,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:08:38 BoogieIcfgContainer [2019-12-27 18:08:38,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:08:38,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:08:38,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:08:38,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:08:38,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:08:37" (1/3) ... [2019-12-27 18:08:38,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df5b67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:08:38, skipping insertion in model container [2019-12-27 18:08:38,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:08:38" (2/3) ... [2019-12-27 18:08:38,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df5b67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:08:38, skipping insertion in model container [2019-12-27 18:08:38,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:08:38" (3/3) ... [2019-12-27 18:08:38,612 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2019-12-27 18:08:38,622 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:08:38,623 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:08:38,630 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:08:38,631 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:08:38,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,658 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,659 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,659 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,659 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,660 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,661 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,661 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,661 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,662 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,663 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,663 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,663 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,667 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,668 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,668 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,668 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,674 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,675 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,675 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,676 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,678 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,679 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,679 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,679 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:08:38,693 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:08:38,708 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:08:38,709 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:08:38,709 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:08:38,709 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:08:38,709 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:08:38,709 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:08:38,709 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:08:38,710 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:08:38,723 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:08:38,725 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:08:38,784 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:08:38,785 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:08:38,794 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 18:08:38,798 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:08:38,817 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:08:38,818 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:08:38,819 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 18:08:38,820 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:08:38,821 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:08:40,161 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 18:08:40,329 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 18:08:40,329 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 18:08:40,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:08:40,345 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:08:40,346 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:08:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:08:40,353 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:08:40,354 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:08:40,354 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:08:40,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:08:40,361 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 18:08:40,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:08:40,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683881467] [2019-12-27 18:08:40,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:08:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:08:40,582 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 18:08:40,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683881467] [2019-12-27 18:08:40,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:08:40,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:08:40,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [810095165] [2019-12-27 18:08:40,586 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:08:40,591 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:08:40,606 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:08:40,606 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:08:40,610 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:08:40,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:08:40,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:08:40,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:08:40,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:08:40,628 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:08:40,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:08:40,652 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 18:08:40,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:08:40,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:08:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:08:40,665 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:08:40,665 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:08:40,666 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 18:08:40,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:08:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:08:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:08:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:08:40,704 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:08:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:08:40,705 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:08:40,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:08:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:08:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:08:40,707 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:08:40,707 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:08:40,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:08:40,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:08:40,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1647367954, now seen corresponding path program 1 times [2019-12-27 18:08:40,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:08:40,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986281189] [2019-12-27 18:08:40,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:08:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:08:40,824 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 18:08:40,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986281189] [2019-12-27 18:08:40,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:08:40,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:08:40,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [897580776] [2019-12-27 18:08:40,825 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:08:40,827 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:08:40,832 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:08:40,832 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:08:40,833 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:08:40,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:08:40,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:08:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:08:40,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:08:40,838 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:08:40,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:08:40,872 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 18:08:40,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:08:40,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:08:40,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:08:40,876 INFO L225 Difference]: With dead ends: 39 [2019-12-27 18:08:40,876 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 18:08:40,878 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 18:08:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 18:08:40,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 18:08:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 18:08:40,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 18:08:40,885 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 18:08:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:08:40,885 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 18:08:40,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:08:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 18:08:40,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:08:40,888 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:08:40,888 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:08:40,889 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:08:40,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:08:40,889 INFO L82 PathProgramCache]: Analyzing trace with hash 445286946, now seen corresponding path program 1 times [2019-12-27 18:08:40,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:08:40,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703202647] [2019-12-27 18:08:40,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:08:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:08:40,968 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 18:08:40,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703202647] [2019-12-27 18:08:40,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:08:40,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:08:40,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [405407351] [2019-12-27 18:08:40,969 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:08:40,970 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:08:40,973 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 18:08:40,973 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:08:41,019 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:08:41,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:08:41,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:08:41,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:08:41,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:08:41,021 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 5 states. [2019-12-27 18:08:41,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:08:41,064 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-27 18:08:41,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:08:41,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 18:08:41,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:08:41,066 INFO L225 Difference]: With dead ends: 40 [2019-12-27 18:08:41,066 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 18:08:41,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:08:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 18:08:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-27 18:08:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:08:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-27 18:08:41,071 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-27 18:08:41,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:08:41,071 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-27 18:08:41,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:08:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-27 18:08:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:08:41,072 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:08:41,072 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:08:41,073 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:08:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:08:41,073 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 18:08:41,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:08:41,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708901140] [2019-12-27 18:08:41,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:08:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:08:41,124 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 18:08:41,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708901140] [2019-12-27 18:08:41,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:08:41,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:08:41,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [991795489] [2019-12-27 18:08:41,125 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:08:41,126 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:08:41,128 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:08:41,128 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:08:41,128 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:08:41,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:08:41,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:08:41,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:08:41,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:08:41,129 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-27 18:08:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:08:41,145 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-27 18:08:41,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:08:41,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:08:41,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:08:41,146 INFO L225 Difference]: With dead ends: 29 [2019-12-27 18:08:41,146 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:08:41,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 18:08:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:08:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:08:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:08:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:08:41,151 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 18:08:41,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:08:41,152 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:08:41,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:08:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:08:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:08:41,153 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:08:41,153 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:08:41,153 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:08:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:08:41,153 INFO L82 PathProgramCache]: Analyzing trace with hash 142093797, now seen corresponding path program 1 times [2019-12-27 18:08:41,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:08:41,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614147356] [2019-12-27 18:08:41,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:08:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:08:41,231 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 18:08:41,231 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614147356] [2019-12-27 18:08:41,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:08:41,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:08:41,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [470421351] [2019-12-27 18:08:41,232 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:08:41,234 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:08:41,237 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:08:41,237 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:08:41,237 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:08:41,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:08:41,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:08:41,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:08:41,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:08:41,238 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 18:08:41,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:08:41,250 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:08:41,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:08:41,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:08:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:08:41,250 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:08:41,251 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:08:41,251 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 18:08:41,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:08:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:08:41,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:08:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:08:41,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:08:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:08:41,252 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:08:41,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:08:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:08:41,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:08:41,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:08:41 BasicIcfg [2019-12-27 18:08:41,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:08:41,258 INFO L168 Benchmark]: Toolchain (without parser) took 3904.72 ms. Allocated memory was 146.8 MB in the beginning and 243.8 MB in the end (delta: 97.0 MB). Free memory was 102.1 MB in the beginning and 125.1 MB in the end (delta: -23.1 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,258 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:08:41,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.96 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 160.8 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.72 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 159.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,261 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,262 INFO L168 Benchmark]: RCFGBuilder took 405.83 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,263 INFO L168 Benchmark]: TraceAbstraction took 2651.29 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 136.2 MB in the beginning and 125.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:08:41,267 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory is still 121.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.96 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 101.7 MB in the beginning and 160.8 MB in the end (delta: -59.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.72 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 159.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.70 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 405.83 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 137.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2651.29 ms. Allocated memory was 203.9 MB in the beginning and 243.8 MB in the end (delta: 39.8 MB). Free memory was 136.2 MB in the beginning and 125.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 29 SDslu, 61 SDs, 0 SdLazy, 37 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 919 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...