/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/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:27:53,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:27:53,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:27:53,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:27:53,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:27:53,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:27:53,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:27:53,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:27:53,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:27:53,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:27:53,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:27:53,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:27:53,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:27:53,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:27:53,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:27:53,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:27:53,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:27:53,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:27:53,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:27:53,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:27:53,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:27:53,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:27:53,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:27:53,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:27:53,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:27:53,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:27:53,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:27:53,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:27:53,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:27:53,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:27:53,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:27:53,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:27:53,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:27:53,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:27:53,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:27:53,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:27:53,154 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 22:27:53,169 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:27:53,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:27:53,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:27:53,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:27:53,171 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:27:53,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:27:53,171 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:27:53,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:27:53,173 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:27:53,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:27:53,173 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:27:53,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:27:53,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:27:53,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:27:53,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:27:53,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:27:53,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:27:53,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:27:53,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:27:53,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:27:53,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:27:53,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:27:53,175 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:27:53,176 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:27:53,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:27:53,176 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:27:53,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:27:53,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:27:53,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:27:53,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:27:53,473 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:27:53,473 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:27:53,474 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-27 22:27:53,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1852da9bc/7faf9a08d1954c5694a8cdb887ebfcab/FLAG9f8c23fc9 [2019-12-27 22:27:54,139 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:27:54,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-27 22:27:54,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1852da9bc/7faf9a08d1954c5694a8cdb887ebfcab/FLAG9f8c23fc9 [2019-12-27 22:27:54,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1852da9bc/7faf9a08d1954c5694a8cdb887ebfcab [2019-12-27 22:27:54,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:27:54,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:27:54,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:27:54,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:27:54,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:27:54,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:27:54" (1/1) ... [2019-12-27 22:27:54,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c4a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:54, skipping insertion in model container [2019-12-27 22:27:54,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:27:54" (1/1) ... [2019-12-27 22:27:54,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:27:54,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:27:55,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:27:55,056 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:27:55,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:27:55,182 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:27:55,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55 WrapperNode [2019-12-27 22:27:55,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:27:55,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:27:55,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:27:55,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:27:55,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:27:55,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:27:55,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:27:55,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:27:55,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... [2019-12-27 22:27:55,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:27:55,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:27:55,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:27:55,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:27:55,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:27:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:27:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:27:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:27:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:27:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:27:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:27:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:27:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:27:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:27:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:27:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:27:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:27:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:27:55,336 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 22:27:55,691 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:27:55,691 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:27:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:27:55 BoogieIcfgContainer [2019-12-27 22:27:55,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:27:55,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:27:55,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:27:55,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:27:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:27:54" (1/3) ... [2019-12-27 22:27:55,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30594917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:27:55, skipping insertion in model container [2019-12-27 22:27:55,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:27:55" (2/3) ... [2019-12-27 22:27:55,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30594917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:27:55, skipping insertion in model container [2019-12-27 22:27:55,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:27:55" (3/3) ... [2019-12-27 22:27:55,703 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-12-27 22:27:55,713 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:27:55,713 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:27:55,720 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:27:55,721 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:27:55,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,751 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,751 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,752 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,752 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,752 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,752 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,753 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,753 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,753 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,754 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,754 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,758 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,759 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,759 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,759 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,765 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,765 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,766 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,766 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,769 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,770 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,770 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:27:55,794 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:27:55,812 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:27:55,812 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:27:55,812 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:27:55,813 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:27:55,814 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:27:55,814 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:27:55,815 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:27:55,815 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:27:55,831 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:27:55,834 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:27:55,884 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:27:55,884 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:27:55,889 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 22:27:55,892 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:27:55,910 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:27:55,911 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:27:55,912 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 22:27:55,914 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:27:55,915 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:27:57,184 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:27:57,332 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 22:27:57,333 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 22:27:57,338 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:27:57,350 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:27:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:27:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:27:57,362 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:27:57,363 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:27:57,388 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:27:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:27:57,397 INFO L82 PathProgramCache]: Analyzing trace with hash -196435608, now seen corresponding path program 1 times [2019-12-27 22:27:57,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:27:57,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811893356] [2019-12-27 22:27:57,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:27:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:27:57,749 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 22:27:57,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811893356] [2019-12-27 22:27:57,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:27:57,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:27:57,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1261752566] [2019-12-27 22:27:57,752 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:27:57,757 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:27:57,769 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:27:57,770 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:27:57,772 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:27:57,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:27:57,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:27:57,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:27:57,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:27:57,786 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:27:57,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:27:57,831 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 22:27:57,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:27:57,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:27:57,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:27:57,846 INFO L225 Difference]: With dead ends: 44 [2019-12-27 22:27:57,847 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:27:57,848 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 22:27:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:27:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:27:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:27:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:27:57,888 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:27:57,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:27:57,889 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:27:57,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:27:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:27:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:27:57,891 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:27:57,891 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:27:57,893 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:27:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:27:57,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1074136562, now seen corresponding path program 1 times [2019-12-27 22:27:57,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:27:57,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060588549] [2019-12-27 22:27:57,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:27:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:27:58,008 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 22:27:58,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060588549] [2019-12-27 22:27:58,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:27:58,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:27:58,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2105074795] [2019-12-27 22:27:58,011 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:27:58,013 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:27:58,020 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:27:58,021 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:27:58,023 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:27:58,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:27:58,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:27:58,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:27:58,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:27:58,026 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 22:27:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:27:58,035 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 22:27:58,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:27:58,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:27:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:27:58,036 INFO L225 Difference]: With dead ends: 34 [2019-12-27 22:27:58,036 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:27:58,037 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 22:27:58,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:27:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:27:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:27:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:27:58,043 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 22:27:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:27:58,043 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:27:58,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:27:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:27:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:27:58,044 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:27:58,044 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:27:58,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:27:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:27:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1794448346, now seen corresponding path program 1 times [2019-12-27 22:27:58,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:27:58,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013728557] [2019-12-27 22:27:58,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:27:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:27:58,110 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 22:27:58,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013728557] [2019-12-27 22:27:58,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:27:58,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:27:58,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [589478008] [2019-12-27 22:27:58,111 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:27:58,113 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:27:58,114 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:27:58,114 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:27:58,117 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:27:58,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:27:58,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:27:58,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:27:58,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:27:58,119 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:27:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:27:58,129 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 22:27:58,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:27:58,129 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:27:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:27:58,131 INFO L225 Difference]: With dead ends: 36 [2019-12-27 22:27:58,132 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 22:27:58,132 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 22:27:58,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 22:27:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 22:27:58,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 22:27:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 22:27:58,137 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 22:27:58,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:27:58,138 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 22:27:58,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:27:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 22:27:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:27:58,139 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:27:58,139 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:27:58,140 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:27:58,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:27:58,140 INFO L82 PathProgramCache]: Analyzing trace with hash 206758562, now seen corresponding path program 1 times [2019-12-27 22:27:58,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:27:58,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681404188] [2019-12-27 22:27:58,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:27:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:27:58,222 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 22:27:58,222 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681404188] [2019-12-27 22:27:58,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:27:58,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:27:58,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [837602110] [2019-12-27 22:27:58,224 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:27:58,227 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:27:58,228 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:27:58,228 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:27:58,228 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:27:58,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:27:58,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:27:58,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:27:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:27:58,229 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 22:27:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:27:58,249 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 22:27:58,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:27:58,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:27:58,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:27:58,251 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:27:58,251 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:27:58,251 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 22:27:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:27:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:27:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:27:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:27:58,254 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:27:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:27:58,254 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:27:58,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:27:58,254 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:27:58,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:27:58,255 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:27:58,255 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:27:58,255 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:27:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:27:58,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1297271908, now seen corresponding path program 1 times [2019-12-27 22:27:58,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:27:58,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385056933] [2019-12-27 22:27:58,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:27:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:27:58,320 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 22:27:58,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385056933] [2019-12-27 22:27:58,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:27:58,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:27:58,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1360185480] [2019-12-27 22:27:58,321 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:27:58,322 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:27:58,324 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:27:58,324 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:27:58,363 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:27:58,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:27:58,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:27:58,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:27:58,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:27:58,365 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 22:27:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:27:58,382 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:27:58,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:27:58,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 22:27:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:27:58,383 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:27:58,383 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:27:58,383 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 22:27:58,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:27:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:27:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:27:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:27:58,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:27:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:27:58,384 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:27:58,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:27:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:27:58,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:27:58,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:27:58 BasicIcfg [2019-12-27 22:27:58,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:27:58,391 INFO L168 Benchmark]: Toolchain (without parser) took 3957.73 ms. Allocated memory was 135.8 MB in the beginning and 252.7 MB in the end (delta: 116.9 MB). Free memory was 99.0 MB in the beginning and 166.1 MB in the end (delta: -67.1 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,391 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.51 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 156.7 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 199.8 MB. Free memory was 156.7 MB in the beginning and 154.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,394 INFO L168 Benchmark]: Boogie Preprocessor took 27.27 ms. Allocated memory is still 199.8 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,395 INFO L168 Benchmark]: RCFGBuilder took 435.62 ms. Allocated memory is still 199.8 MB. Free memory was 153.2 MB in the beginning and 132.3 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,396 INFO L168 Benchmark]: TraceAbstraction took 2694.12 ms. Allocated memory was 199.8 MB in the beginning and 252.7 MB in the end (delta: 53.0 MB). Free memory was 132.3 MB in the beginning and 166.1 MB in the end (delta: -33.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-12-27 22:27:58,400 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.51 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 98.8 MB in the beginning and 156.7 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 199.8 MB. Free memory was 156.7 MB in the beginning and 154.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.27 ms. Allocated memory is still 199.8 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.62 ms. Allocated memory is still 199.8 MB. Free memory was 153.2 MB in the beginning and 132.3 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2694.12 ms. Allocated memory was 199.8 MB in the beginning and 252.7 MB in the end (delta: 53.0 MB). Free memory was 132.3 MB in the beginning and 166.1 MB in the end (delta: -33.8 MB). Peak memory consumption was 19.2 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, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 229 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 46 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: 59 SDtfs, 19 SDslu, 45 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 878 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...