/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/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:28:55,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:28:55,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:28:55,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:28:55,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:28:55,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:28:55,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:28:55,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:28:55,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:28:55,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:28:55,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:28:55,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:28:55,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:28:55,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:28:55,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:28:55,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:28:55,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:28:55,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:28:55,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:28:55,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:28:55,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:28:55,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:28:55,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:28:55,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:28:55,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:28:55,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:28:55,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:28:55,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:28:55,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:28:55,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:28:55,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:28:55,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:28:55,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:28:55,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:28:55,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:28:55,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:28:55,182 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 22:28:55,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:28:55,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:28:55,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:28:55,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:28:55,198 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:28:55,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:28:55,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:28:55,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:28:55,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:28:55,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:28:55,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:28:55,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:28:55,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:28:55,200 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:28:55,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:28:55,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:28:55,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:28:55,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:28:55,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:28:55,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:28:55,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:28:55,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:28:55,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:28:55,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:28:55,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:28:55,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:28:55,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:28:55,203 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:28:55,203 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:28:55,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:28:55,204 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:28:55,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:28:55,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:28:55,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:28:55,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:28:55,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:28:55,512 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:28:55,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2019-12-27 22:28:55,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33db55966/26ce149601c94db8a3f1ea26545ee5ad/FLAG707a04164 [2019-12-27 22:28:56,088 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:28:56,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2019-12-27 22:28:56,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33db55966/26ce149601c94db8a3f1ea26545ee5ad/FLAG707a04164 [2019-12-27 22:28:56,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33db55966/26ce149601c94db8a3f1ea26545ee5ad [2019-12-27 22:28:56,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:28:56,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:28:56,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:28:56,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:28:56,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:28:56,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:28:56" (1/1) ... [2019-12-27 22:28:56,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d52fdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:56, skipping insertion in model container [2019-12-27 22:28:56,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:28:56" (1/1) ... [2019-12-27 22:28:56,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:28:56,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:28:56,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:28:57,009 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:28:57,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:28:57,157 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:28:57,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57 WrapperNode [2019-12-27 22:28:57,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:28:57,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:28:57,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:28:57,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:28:57,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:28:57,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:28:57,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:28:57,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:28:57,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (1/1) ... [2019-12-27 22:28:57,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:28:57,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:28:57,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:28:57,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:28:57,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (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 22:28:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:28:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:28:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:28:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:28:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:28:57,302 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:28:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:28:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:28:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:28:57,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:28:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:28:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:28:57,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:28:57,305 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 22:28:57,696 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:28:57,697 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:28:57,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:28:57 BoogieIcfgContainer [2019-12-27 22:28:57,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:28:57,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:28:57,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:28:57,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:28:57,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:28:56" (1/3) ... [2019-12-27 22:28:57,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34234e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:28:57, skipping insertion in model container [2019-12-27 22:28:57,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:28:57" (2/3) ... [2019-12-27 22:28:57,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34234e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:28:57, skipping insertion in model container [2019-12-27 22:28:57,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:28:57" (3/3) ... [2019-12-27 22:28:57,707 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2019-12-27 22:28:57,716 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:28:57,717 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:28:57,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:28:57,726 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:28:57,758 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,759 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,759 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,760 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,760 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,762 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,762 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,762 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,764 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,764 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,765 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,770 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,771 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,771 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,771 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,775 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,776 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,776 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,776 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,779 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,779 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,780 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:28:57,795 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:28:57,815 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:28:57,816 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:28:57,816 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:28:57,816 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:28:57,816 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:28:57,817 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:28:57,817 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:28:57,817 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:28:57,830 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 22:28:57,832 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:28:57,884 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:28:57,884 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:28:57,894 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:28:57,899 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:28:57,923 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:28:57,923 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:28:57,924 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:28:57,925 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:28:57,928 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:28:59,261 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 22:28:59,398 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 22:28:59,399 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:28:59,402 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:28:59,411 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:28:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:28:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:28:59,419 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:59,420 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:59,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 22:28:59,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:59,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269444656] [2019-12-27 22:28:59,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:59,645 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 22:28:59,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269444656] [2019-12-27 22:28:59,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:59,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:28:59,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1330725838] [2019-12-27 22:28:59,651 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:59,664 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:59,689 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:28:59,689 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:59,693 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:28:59,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:28:59,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:28:59,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:28:59,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:28:59,719 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:28:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:28:59,761 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 22:28:59,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:28:59,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:28:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:28:59,790 INFO L225 Difference]: With dead ends: 42 [2019-12-27 22:28:59,790 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:28:59,794 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 22:28:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:28:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:28:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:28:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:28:59,847 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:28:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:28:59,848 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:28:59,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:28:59,849 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:28:59,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:28:59,851 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:28:59,854 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:28:59,856 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:28:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:28:59,856 INFO L82 PathProgramCache]: Analyzing trace with hash 116613460, now seen corresponding path program 1 times [2019-12-27 22:28:59,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:28:59,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703952583] [2019-12-27 22:28:59,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:28:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:28:59,986 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 22:28:59,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703952583] [2019-12-27 22:28:59,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:28:59,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:28:59,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1513077237] [2019-12-27 22:28:59,988 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:28:59,990 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:28:59,994 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 13 transitions. [2019-12-27 22:28:59,995 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:28:59,996 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:00,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:29:00,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:00,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:29:00,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:00,001 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 22:29:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:00,008 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 22:29:00,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:29:00,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:29:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:00,010 INFO L225 Difference]: With dead ends: 32 [2019-12-27 22:29:00,010 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 22:29:00,011 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 22:29:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 22:29:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 22:29:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 22:29:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 22:29:00,018 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 9 [2019-12-27 22:29:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:00,019 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 22:29:00,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:29:00,019 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 22:29:00,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:29:00,020 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:00,020 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:00,020 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 22:29:00,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:00,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451153001] [2019-12-27 22:29:00,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:00,093 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 22:29:00,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451153001] [2019-12-27 22:29:00,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:00,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:29:00,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [62457589] [2019-12-27 22:29:00,094 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:00,095 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:00,097 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:29:00,097 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:00,098 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:00,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:29:00,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:00,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:29:00,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:29:00,099 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 22:29:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:00,123 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 22:29:00,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:29:00,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:29:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:00,124 INFO L225 Difference]: With dead ends: 35 [2019-12-27 22:29:00,124 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 22:29:00,124 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 22:29:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 22:29:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 22:29:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 22:29:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 22:29:00,131 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 22:29:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:00,131 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 22:29:00,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:29:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 22:29:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:29:00,132 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:00,132 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:00,132 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:00,133 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 22:29:00,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:00,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485444789] [2019-12-27 22:29:00,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:00,194 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 22:29:00,194 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485444789] [2019-12-27 22:29:00,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:00,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:29:00,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1288275342] [2019-12-27 22:29:00,195 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:00,197 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:00,199 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:29:00,199 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:00,200 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:00,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:29:00,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:00,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:29:00,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:29:00,201 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 22:29:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:00,247 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 22:29:00,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:29:00,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:29:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:00,248 INFO L225 Difference]: With dead ends: 23 [2019-12-27 22:29:00,248 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 22:29:00,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:29:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 22:29:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 22:29:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 22:29:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 22:29:00,251 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 22:29:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:00,251 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 22:29:00,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:29:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 22:29:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:29:00,252 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:29:00,252 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:29:00,252 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:29:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:29:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 22:29:00,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:29:00,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621599340] [2019-12-27 22:29:00,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:29:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:29:00,299 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 22:29:00,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621599340] [2019-12-27 22:29:00,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:29:00,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:29:00,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [767187307] [2019-12-27 22:29:00,301 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:29:00,302 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:29:00,304 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 22:29:00,304 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:29:00,304 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:29:00,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:29:00,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:29:00,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:29:00,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:29:00,305 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 22:29:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:29:00,323 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 22:29:00,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:29:00,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:29:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:29:00,324 INFO L225 Difference]: With dead ends: 14 [2019-12-27 22:29:00,324 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:29:00,325 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 22:29:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:29:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:29:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:29:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:29:00,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:29:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:29:00,326 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:29:00,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:29:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:29:00,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:29:00,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:29:00 BasicIcfg [2019-12-27 22:29:00,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:29:00,333 INFO L168 Benchmark]: Toolchain (without parser) took 3937.22 ms. Allocated memory was 146.8 MB in the beginning and 244.3 MB in the end (delta: 97.5 MB). Free memory was 102.0 MB in the beginning and 140.6 MB in the end (delta: -38.6 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,334 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.87 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,336 INFO L168 Benchmark]: Boogie Preprocessor took 24.35 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,337 INFO L168 Benchmark]: RCFGBuilder took 463.34 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 137.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,338 INFO L168 Benchmark]: TraceAbstraction took 2630.82 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.0 MB in the beginning and 140.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:29:00,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.87 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.7 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.35 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.34 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 137.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2630.82 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.0 MB in the beginning and 140.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 504 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 15 SDslu, 31 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 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, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 976 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...