/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:45:24,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:45:24,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:45:24,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:45:24,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:45:24,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:45:24,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:45:24,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:45:24,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:45:24,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:45:24,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:45:24,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:45:24,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:45:24,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:45:24,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:45:24,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:45:24,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:45:24,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:45:24,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:45:24,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:45:24,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:45:24,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:45:24,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:45:24,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:45:24,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 13:45:24,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:45:24,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:45:24,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:45:24,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:45:24,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:45:24,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:45:24,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:45:24,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:45:24,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:45:24,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:45:24,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:45:24,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:45:24,372 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:45:24,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:45:24,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:45:24,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:45:24,374 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:45:24,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:45:24,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:45:24,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:45:24,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:45:24,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:45:24,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:45:24,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:45:24,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:45:24,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:45:24,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:45:24,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:45:24,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:45:24,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:45:24,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:45:24,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:45:24,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:45:24,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:45:24,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:45:24,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:45:24,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:45:24,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:45:24,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:45:24,379 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:45:24,379 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:45:24,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:45:24,380 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:45:24,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:45:24,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:45:24,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:45:24,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:45:24,727 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:45:24,729 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-10-16 13:45:24,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a59eed6a/32fabacb3c46444abfc168ee9aba49c3/FLAG6fc8e4779 [2020-10-16 13:45:25,435 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:45:25,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-10-16 13:45:25,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a59eed6a/32fabacb3c46444abfc168ee9aba49c3/FLAG6fc8e4779 [2020-10-16 13:45:25,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3a59eed6a/32fabacb3c46444abfc168ee9aba49c3 [2020-10-16 13:45:25,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:45:25,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:45:25,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:25,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:45:25,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:45:25,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:25" (1/1) ... [2020-10-16 13:45:25,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695c0e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:25, skipping insertion in model container [2020-10-16 13:45:25,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:45:25" (1/1) ... [2020-10-16 13:45:25,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:45:25,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:45:26,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:26,345 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:45:26,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:45:26,485 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:45:26,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26 WrapperNode [2020-10-16 13:45:26,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:45:26,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:26,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:45:26,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:45:26,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:45:26,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:45:26,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:45:26,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:45:26,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... [2020-10-16 13:45:26,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:45:26,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:45:26,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:45:26,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:45:26,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 13:45:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:45:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:45:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:45:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:45:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:45:26,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:45:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:45:26,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:45:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:45:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:45:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 13:45:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 13:45:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:45:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:45:26,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:45:26,675 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:45:27,115 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:45:27,115 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:45:27,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:27 BoogieIcfgContainer [2020-10-16 13:45:27,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:45:27,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:45:27,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:45:27,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:45:27,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:45:25" (1/3) ... [2020-10-16 13:45:27,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e60fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:27, skipping insertion in model container [2020-10-16 13:45:27,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:45:26" (2/3) ... [2020-10-16 13:45:27,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493e60fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:45:27, skipping insertion in model container [2020-10-16 13:45:27,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:45:27" (3/3) ... [2020-10-16 13:45:27,129 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-10-16 13:45:27,142 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:45:27,143 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:45:27,152 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:45:27,153 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:45:27,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,188 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,191 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,192 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,192 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,193 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,194 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,194 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,194 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,199 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,199 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,200 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,200 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,208 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,209 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,216 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,216 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,216 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,217 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:45:27,219 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:45:27,235 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 13:45:27,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:45:27,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:45:27,260 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:45:27,260 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:45:27,260 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:45:27,260 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:45:27,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:45:27,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:45:27,276 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:45:27,277 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:27,279 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:27,280 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-16 13:45:27,327 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 13:45:27,327 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:45:27,333 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-16 13:45:27,337 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-16 13:45:28,653 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:45:28,721 INFO L132 LiptonReduction]: Checked pairs total: 3047 [2020-10-16 13:45:28,722 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-16 13:45:28,730 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-16 13:45:28,814 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-16 13:45:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-16 13:45:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:45:28,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:28,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:28,849 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:28,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:28,855 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-16 13:45:28,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:28,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801969516] [2020-10-16 13:45:28,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:29,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801969516] [2020-10-16 13:45:29,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:29,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:29,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1931137802] [2020-10-16 13:45:29,092 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:29,095 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:29,114 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-16 13:45:29,114 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:29,119 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:29,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:45:29,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:29,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:45:29,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:45:29,140 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-16 13:45:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:29,173 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-16 13:45:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:45:29,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-16 13:45:29,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:29,201 INFO L225 Difference]: With dead ends: 850 [2020-10-16 13:45:29,202 INFO L226 Difference]: Without dead ends: 706 [2020-10-16 13:45:29,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:45:29,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-16 13:45:29,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-16 13:45:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-16 13:45:29,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-16 13:45:29,346 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-16 13:45:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:29,356 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-16 13:45:29,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:45:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-16 13:45:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:45:29,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:29,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:29,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:45:29,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:29,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-16 13:45:29,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:29,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113436819] [2020-10-16 13:45:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:29,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113436819] [2020-10-16 13:45:29,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:29,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:29,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [797907072] [2020-10-16 13:45:29,518 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:29,519 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:29,521 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-16 13:45:29,521 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:29,522 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:29,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:29,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:29,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:29,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:29,524 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-16 13:45:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:29,585 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-16 13:45:29,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:29,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:45:29,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:29,603 INFO L225 Difference]: With dead ends: 778 [2020-10-16 13:45:29,603 INFO L226 Difference]: Without dead ends: 634 [2020-10-16 13:45:29,604 INFO L677 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 [2020-10-16 13:45:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-16 13:45:29,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-16 13:45:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-16 13:45:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-16 13:45:29,654 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-16 13:45:29,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:29,654 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-16 13:45:29,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:29,655 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-16 13:45:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:45:29,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:29,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:29,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:45:29,664 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:29,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:29,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-16 13:45:29,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:29,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772795510] [2020-10-16 13:45:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:29,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772795510] [2020-10-16 13:45:29,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:29,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:29,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [171780187] [2020-10-16 13:45:29,786 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:29,787 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:29,789 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-16 13:45:29,790 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:29,850 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:29,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:29,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:29,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:29,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:29,852 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-16 13:45:29,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:29,937 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-10-16 13:45:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:29,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:45:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:29,942 INFO L225 Difference]: With dead ends: 814 [2020-10-16 13:45:29,942 INFO L226 Difference]: Without dead ends: 394 [2020-10-16 13:45:29,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-16 13:45:29,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-16 13:45:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-16 13:45:29,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-10-16 13:45:29,964 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-10-16 13:45:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:29,964 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-10-16 13:45:29,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-10-16 13:45:29,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:45:29,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:29,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:29,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:45:29,969 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:29,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:29,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-10-16 13:45:29,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:29,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823860945] [2020-10-16 13:45:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:30,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823860945] [2020-10-16 13:45:30,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:30,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:45:30,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1968873393] [2020-10-16 13:45:30,079 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:30,081 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:30,084 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-16 13:45:30,084 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:30,094 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:30,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:45:30,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:30,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:45:30,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:45:30,096 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-10-16 13:45:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:30,121 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-10-16 13:45:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:30,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:45:30,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:30,124 INFO L225 Difference]: With dead ends: 430 [2020-10-16 13:45:30,125 INFO L226 Difference]: Without dead ends: 358 [2020-10-16 13:45:30,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-16 13:45:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-16 13:45:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-16 13:45:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-10-16 13:45:30,139 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-10-16 13:45:30,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:30,139 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-10-16 13:45:30,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:45:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-10-16 13:45:30,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 13:45:30,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:30,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:30,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:45:30,142 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:30,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-10-16 13:45:30,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:30,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084713989] [2020-10-16 13:45:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:30,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084713989] [2020-10-16 13:45:30,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:30,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:30,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [558425849] [2020-10-16 13:45:30,235 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:30,237 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:30,240 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-10-16 13:45:30,241 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:30,292 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:30,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:30,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:30,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:30,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:30,293 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-10-16 13:45:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:30,354 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-10-16 13:45:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:45:30,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-16 13:45:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:30,357 INFO L225 Difference]: With dead ends: 496 [2020-10-16 13:45:30,357 INFO L226 Difference]: Without dead ends: 262 [2020-10-16 13:45:30,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:30,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-16 13:45:30,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-16 13:45:30,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-16 13:45:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-16 13:45:30,367 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-16 13:45:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:30,367 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-16 13:45:30,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-16 13:45:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:45:30,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:30,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:30,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:45:30,369 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:30,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-16 13:45:30,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:30,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840169436] [2020-10-16 13:45:30,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:30,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840169436] [2020-10-16 13:45:30,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:30,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:45:30,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [843161836] [2020-10-16 13:45:30,450 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:30,452 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:30,458 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-10-16 13:45:30,459 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:30,495 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,539 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,565 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,610 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,644 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,701 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,712 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,727 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,734 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-16 13:45:30,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:30,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:30,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:30,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:30,735 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-10-16 13:45:30,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:30,810 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-10-16 13:45:30,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:30,811 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 13:45:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:30,813 INFO L225 Difference]: With dead ends: 263 [2020-10-16 13:45:30,813 INFO L226 Difference]: Without dead ends: 182 [2020-10-16 13:45:30,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-16 13:45:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-16 13:45:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-16 13:45:30,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-16 13:45:30,820 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-10-16 13:45:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:30,821 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-16 13:45:30,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-16 13:45:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 13:45:30,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:30,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:30,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:45:30,823 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:30,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:30,823 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-16 13:45:30,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:30,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580573867] [2020-10-16 13:45:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:30,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580573867] [2020-10-16 13:45:30,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:30,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 13:45:30,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1952433441] [2020-10-16 13:45:30,890 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:30,892 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:30,905 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-10-16 13:45:30,906 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:30,915 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,933 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:30,948 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:31,080 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10550#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:31,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:45:31,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:45:31,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:31,081 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 7 states. [2020-10-16 13:45:31,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:31,147 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-16 13:45:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:45:31,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-16 13:45:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:31,149 INFO L225 Difference]: With dead ends: 165 [2020-10-16 13:45:31,149 INFO L226 Difference]: Without dead ends: 132 [2020-10-16 13:45:31,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-16 13:45:31,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-16 13:45:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-16 13:45:31,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-16 13:45:31,154 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-16 13:45:31,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:31,154 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-16 13:45:31,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:45:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-16 13:45:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 13:45:31,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:31,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:31,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:45:31,156 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:31,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-16 13:45:31,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:31,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500647288] [2020-10-16 13:45:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:31,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500647288] [2020-10-16 13:45:31,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:31,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 13:45:31,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2084321732] [2020-10-16 13:45:31,239 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:31,243 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:31,249 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-10-16 13:45:31,249 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:31,257 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:45:31,358 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10989#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:45:31,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 13:45:31,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:31,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 13:45:31,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:45:31,359 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 8 states. [2020-10-16 13:45:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:31,427 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-16 13:45:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 13:45:31,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-16 13:45:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:31,429 INFO L225 Difference]: With dead ends: 121 [2020-10-16 13:45:31,429 INFO L226 Difference]: Without dead ends: 112 [2020-10-16 13:45:31,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 13:45:31,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-16 13:45:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-16 13:45:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-16 13:45:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-16 13:45:31,433 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-16 13:45:31,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:31,433 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-16 13:45:31,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 13:45:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-16 13:45:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:31,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:31,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:31,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:45:31,435 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:31,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:31,435 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-16 13:45:31,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:31,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501240757] [2020-10-16 13:45:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:31,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501240757] [2020-10-16 13:45:31,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:31,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:31,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1676023026] [2020-10-16 13:45:31,489 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:31,493 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:31,501 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-10-16 13:45:31,502 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:31,581 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:31,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:31,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:31,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:31,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:31,583 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-16 13:45:31,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:31,616 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-16 13:45:31,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:31,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:31,618 INFO L225 Difference]: With dead ends: 146 [2020-10-16 13:45:31,618 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 13:45:31,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 13:45:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 13:45:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 13:45:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-16 13:45:31,621 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-16 13:45:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:31,623 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-16 13:45:31,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-16 13:45:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-16 13:45:31,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:45:31,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:45:31,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:45:31,625 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:45:31,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:45:31,625 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-16 13:45:31,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:45:31,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644280074] [2020-10-16 13:45:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:45:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:45:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:45:31,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644280074] [2020-10-16 13:45:31,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:45:31,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:45:31,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1217387490] [2020-10-16 13:45:31,694 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:45:31,697 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:45:31,703 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-10-16 13:45:31,703 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:45:31,712 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:45:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:45:31,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:45:31,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:45:31,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:45:31,713 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-16 13:45:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:45:31,740 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-16 13:45:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:45:31,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-16 13:45:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:45:31,741 INFO L225 Difference]: With dead ends: 51 [2020-10-16 13:45:31,741 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:45:31,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:45:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:45:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:45:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:45:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:45:31,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-16 13:45:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:45:31,743 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:45:31,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:45:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:45:31,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:45:31,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:45:31,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:45:31 BasicIcfg [2020-10-16 13:45:31,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:45:31,750 INFO L168 Benchmark]: Toolchain (without parser) took 5987.15 ms. Allocated memory was 144.2 MB in the beginning and 299.9 MB in the end (delta: 155.7 MB). Free memory was 98.5 MB in the beginning and 161.8 MB in the end (delta: -63.3 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,751 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:45:31,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.99 ms. Allocated memory was 144.2 MB in the beginning and 199.8 MB in the end (delta: 55.6 MB). Free memory was 98.3 MB in the beginning and 155.6 MB in the end (delta: -57.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.78 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,758 INFO L168 Benchmark]: Boogie Preprocessor took 35.83 ms. Allocated memory is still 199.8 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,759 INFO L168 Benchmark]: RCFGBuilder took 536.32 ms. Allocated memory is still 199.8 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,764 INFO L168 Benchmark]: TraceAbstraction took 4627.03 ms. Allocated memory was 199.8 MB in the beginning and 299.9 MB in the end (delta: 100.1 MB). Free memory was 127.1 MB in the beginning and 161.8 MB in the end (delta: -34.7 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2020-10-16 13:45:31,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.99 ms. Allocated memory was 144.2 MB in the beginning and 199.8 MB in the end (delta: 55.6 MB). Free memory was 98.3 MB in the beginning and 155.6 MB in the end (delta: -57.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.78 ms. Allocated memory is still 199.8 MB. Free memory was 155.6 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.83 ms. Allocated memory is still 199.8 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 536.32 ms. Allocated memory is still 199.8 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4627.03 ms. Allocated memory was 199.8 MB in the beginning and 299.9 MB in the end (delta: 100.1 MB). Free memory was 127.1 MB in the beginning and 161.8 MB in the end (delta: -34.7 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 959 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 93 PlacesBefore, 39 PlacesAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3047 MoverChecksTotal - PositiveResult [Line: 7]: 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 245 SDtfs, 258 SDslu, 466 SDs, 0 SdLazy, 201 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...