/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 21:20:52,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 21:20:52,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 21:20:52,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 21:20:52,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 21:20:52,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 21:20:52,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 21:20:52,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 21:20:52,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 21:20:52,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 21:20:52,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 21:20:52,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 21:20:52,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 21:20:52,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 21:20:52,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 21:20:52,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 21:20:52,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 21:20:52,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 21:20:52,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 21:20:52,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 21:20:52,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 21:20:52,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 21:20:52,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 21:20:52,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 21:20:52,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 21:20:52,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 21:20:52,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 21:20:52,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 21:20:52,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 21:20:52,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 21:20:52,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 21:20:52,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 21:20:52,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 21:20:52,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 21:20:52,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 21:20:52,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 21:20:52,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 21:20:52,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 21:20:52,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 21:20:52,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 21:20:52,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 21:20:52,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 21:20:52,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 21:20:52,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 21:20:52,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 21:20:52,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 21:20:52,749 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 21:20:52,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 21:20:52,750 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 21:20:52,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 21:20:52,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 21:20:52,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 21:20:52,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 21:20:52,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 21:20:52,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 21:20:52,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 21:20:52,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 21:20:52,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 21:20:52,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 21:20:52,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 21:20:52,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 21:20:52,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 21:20:52,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 21:20:52,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 21:20:52,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 21:20:52,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 21:20:52,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 21:20:52,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 21:20:52,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 21:20:52,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 21:20:52,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 21:20:52,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 21:20:53,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 21:20:53,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 21:20:53,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 21:20:53,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 21:20:53,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 21:20:53,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label40.c [2020-10-26 21:20:53,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeead6cb6/8761fe0acb514c3d82baffdfb4e5cfcd/FLAGfc6146da4 [2020-10-26 21:20:54,749 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 21:20:54,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label40.c [2020-10-26 21:20:54,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeead6cb6/8761fe0acb514c3d82baffdfb4e5cfcd/FLAGfc6146da4 [2020-10-26 21:20:54,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aeead6cb6/8761fe0acb514c3d82baffdfb4e5cfcd [2020-10-26 21:20:54,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 21:20:54,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 21:20:54,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 21:20:54,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 21:20:54,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 21:20:54,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:20:54" (1/1) ... [2020-10-26 21:20:54,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b560c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:54, skipping insertion in model container [2020-10-26 21:20:54,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:20:54" (1/1) ... [2020-10-26 21:20:54,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 21:20:55,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 21:20:57,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 21:20:57,596 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 21:20:58,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 21:20:58,901 INFO L208 MainTranslator]: Completed translation [2020-10-26 21:20:58,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58 WrapperNode [2020-10-26 21:20:58,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 21:20:58,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 21:20:58,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 21:20:58,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 21:20:58,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:58,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (1/1) ... [2020-10-26 21:20:59,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 21:20:59,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 21:20:59,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 21:20:59,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 21:20:59,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (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 [2020-10-26 21:20:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 21:20:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 21:20:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 21:20:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 21:20:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-26 21:20:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-26 21:20:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 21:20:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 21:20:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-26 21:20:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-26 21:20:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-26 21:20:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-26 21:20:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-26 21:20:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-26 21:20:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-26 21:20:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 21:20:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 21:20:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 21:20:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 21:20:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 21:20:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 21:20:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 21:21:09,801 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 21:21:09,803 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 21:21:09,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:09 BoogieIcfgContainer [2020-10-26 21:21:09,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 21:21:09,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 21:21:09,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 21:21:09,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 21:21:09,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:20:54" (1/3) ... [2020-10-26 21:21:09,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1507f4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:21:09, skipping insertion in model container [2020-10-26 21:21:09,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:20:58" (2/3) ... [2020-10-26 21:21:09,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1507f4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:21:09, skipping insertion in model container [2020-10-26 21:21:09,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:09" (3/3) ... [2020-10-26 21:21:09,822 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40.c [2020-10-26 21:21:09,836 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 21:21:09,843 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 21:21:09,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 21:21:09,915 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 21:21:09,915 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 21:21:09,916 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 21:21:09,916 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 21:21:09,916 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 21:21:09,916 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 21:21:09,916 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 21:21:09,916 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 21:21:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states. [2020-10-26 21:21:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2020-10-26 21:21:10,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:21:10,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:21:10,149 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:21:10,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:21:10,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1875713063, now seen corresponding path program 1 times [2020-10-26 21:21:10,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:21:10,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324410204] [2020-10-26 21:21:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:21:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:21:11,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:16,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:21:16,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1696 [2020-10-26 21:21:16,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:21:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5129 [2020-10-26 21:21:16,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:21:16,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-26 21:21:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:21:16,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1687 [2020-10-26 21:21:16,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 21:21:18,689 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-26 21:21:18,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:21:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:21:18,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:18,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:21:18,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:21:18,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:21:18,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 21:21:18,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:21:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:21:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:21:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:21:18,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:21:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:21:21,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324410204] [2020-10-26 21:21:21,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:21:21,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 21:21:21,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641459503] [2020-10-26 21:21:21,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 21:21:21,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:21:21,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 21:21:21,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 21:21:21,420 INFO L87 Difference]: Start difference. First operand 2226 states. Second operand 4 states. [2020-10-26 21:21:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:21:42,723 INFO L93 Difference]: Finished difference Result 6316 states and 11857 transitions. [2020-10-26 21:21:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 21:21:42,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1672 [2020-10-26 21:21:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:21:42,787 INFO L225 Difference]: With dead ends: 6316 [2020-10-26 21:21:42,787 INFO L226 Difference]: Without dead ends: 4026 [2020-10-26 21:21:42,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 21:21:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2020-10-26 21:21:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 3997. [2020-10-26 21:21:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3997 states. [2020-10-26 21:21:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 6428 transitions. [2020-10-26 21:21:43,063 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 6428 transitions. Word has length 1672 [2020-10-26 21:21:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:21:43,069 INFO L481 AbstractCegarLoop]: Abstraction has 3997 states and 6428 transitions. [2020-10-26 21:21:43,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 21:21:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 6428 transitions. [2020-10-26 21:21:43,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1682 [2020-10-26 21:21:43,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:21:43,211 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:21:43,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 21:21:43,212 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:21:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:21:43,213 INFO L82 PathProgramCache]: Analyzing trace with hash 211555875, now seen corresponding path program 1 times [2020-10-26 21:21:43,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:21:43,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512373501] [2020-10-26 21:21:43,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:21:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:21:43,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:45,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:48,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:21:48,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1707 [2020-10-26 21:21:48,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:21:48,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-26 21:21:48,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:21:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 21:21:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:21:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 21:21:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 21:21:49,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:21:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:21:49,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:49,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:21:49,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:21:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:21:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:21:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:21:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:21:49,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:21:49,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:21:49,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:21:49,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 21:21:49,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:21:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:21:50,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512373501] [2020-10-26 21:21:50,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:21:50,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 21:21:50,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905325439] [2020-10-26 21:21:50,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:21:50,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:21:50,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:21:50,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:21:50,926 INFO L87 Difference]: Start difference. First operand 3997 states and 6428 transitions. Second operand 7 states. [2020-10-26 21:22:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:22:16,493 INFO L93 Difference]: Finished difference Result 11691 states and 18999 transitions. [2020-10-26 21:22:16,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 21:22:16,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1681 [2020-10-26 21:22:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:22:16,540 INFO L225 Difference]: With dead ends: 11691 [2020-10-26 21:22:16,540 INFO L226 Difference]: Without dead ends: 7700 [2020-10-26 21:22:16,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 21:22:16,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7700 states. [2020-10-26 21:22:16,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7700 to 7633. [2020-10-26 21:22:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7633 states. [2020-10-26 21:22:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7633 states to 7633 states and 11193 transitions. [2020-10-26 21:22:16,792 INFO L78 Accepts]: Start accepts. Automaton has 7633 states and 11193 transitions. Word has length 1681 [2020-10-26 21:22:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:22:16,793 INFO L481 AbstractCegarLoop]: Abstraction has 7633 states and 11193 transitions. [2020-10-26 21:22:16,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:22:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7633 states and 11193 transitions. [2020-10-26 21:22:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1684 [2020-10-26 21:22:16,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:22:16,838 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:22:16,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 21:22:16,838 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:22:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:22:16,840 INFO L82 PathProgramCache]: Analyzing trace with hash 709474591, now seen corresponding path program 1 times [2020-10-26 21:22:16,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:22:16,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310494052] [2020-10-26 21:22:16,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:22:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:22:17,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:22:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:22:22,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:22:22,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1709 [2020-10-26 21:22:22,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 21:22:22,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5169 [2020-10-26 21:22:22,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:22:22,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 21:22:22,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:22:22,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 21:22:22,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:22:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:22:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:22:22,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:22:22,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:22:22,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:22:22,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:22:22,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 21:22:22,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:22:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:22:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:22:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:22:22,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:22:22,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:22:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:22:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:22:22,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:22:22,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 21:22:22,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 21:22:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:22:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:22:24,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310494052] [2020-10-26 21:22:24,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:22:24,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 21:22:24,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743888102] [2020-10-26 21:22:24,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 21:22:24,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:22:24,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 21:22:24,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 21:22:24,434 INFO L87 Difference]: Start difference. First operand 7633 states and 11193 transitions. Second operand 8 states. [2020-10-26 21:23:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:23:02,237 INFO L93 Difference]: Finished difference Result 23121 states and 33849 transitions. [2020-10-26 21:23:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 21:23:02,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1683 [2020-10-26 21:23:02,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:23:02,313 INFO L225 Difference]: With dead ends: 23121 [2020-10-26 21:23:02,314 INFO L226 Difference]: Without dead ends: 15494 [2020-10-26 21:23:02,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-10-26 21:23:02,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15494 states. [2020-10-26 21:23:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15494 to 15125. [2020-10-26 21:23:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15125 states. [2020-10-26 21:23:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15125 states to 15125 states and 20401 transitions. [2020-10-26 21:23:02,847 INFO L78 Accepts]: Start accepts. Automaton has 15125 states and 20401 transitions. Word has length 1683 [2020-10-26 21:23:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:23:02,851 INFO L481 AbstractCegarLoop]: Abstraction has 15125 states and 20401 transitions. [2020-10-26 21:23:02,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 21:23:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15125 states and 20401 transitions. [2020-10-26 21:23:03,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1695 [2020-10-26 21:23:03,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:23:03,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:23:03,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 21:23:03,062 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:23:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:23:03,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1379586648, now seen corresponding path program 1 times [2020-10-26 21:23:03,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:23:03,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714975724] [2020-10-26 21:23:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:23:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:04,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:08,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:08,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1720 [2020-10-26 21:23:08,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 21:23:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5117 [2020-10-26 21:23:08,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 21:23:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 21:23:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 21:23:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:09,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:23:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:09,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:09,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:09,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:23:09,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:23:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 21:23:09,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:23:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:23:09,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 21:23:09,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:23:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:09,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:09,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:09,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 21:23:09,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:23:09,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 21:23:09,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:23:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:23:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 21:23:09,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 21:23:10,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714975724] [2020-10-26 21:23:10,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 21:23:10,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 21:23:10,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767790872] [2020-10-26 21:23:10,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 21:23:10,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:23:10,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 21:23:10,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 21:23:10,887 INFO L87 Difference]: Start difference. First operand 15125 states and 20401 transitions. Second operand 7 states. [2020-10-26 21:23:36,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:23:36,043 INFO L93 Difference]: Finished difference Result 45355 states and 62975 transitions. [2020-10-26 21:23:36,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 21:23:36,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1694 [2020-10-26 21:23:36,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:23:36,141 INFO L225 Difference]: With dead ends: 45355 [2020-10-26 21:23:36,141 INFO L226 Difference]: Without dead ends: 30236 [2020-10-26 21:23:36,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 21:23:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30236 states. [2020-10-26 21:23:36,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30236 to 29925. [2020-10-26 21:23:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29925 states. [2020-10-26 21:23:36,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29925 states to 29925 states and 36993 transitions. [2020-10-26 21:23:36,882 INFO L78 Accepts]: Start accepts. Automaton has 29925 states and 36993 transitions. Word has length 1694 [2020-10-26 21:23:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 21:23:36,883 INFO L481 AbstractCegarLoop]: Abstraction has 29925 states and 36993 transitions. [2020-10-26 21:23:36,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 21:23:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 29925 states and 36993 transitions. [2020-10-26 21:23:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1808 [2020-10-26 21:23:36,995 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 21:23:36,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 21:23:36,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 21:23:36,999 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 21:23:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 21:23:37,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1523956462, now seen corresponding path program 1 times [2020-10-26 21:23:37,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 21:23:37,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3755945] [2020-10-26 21:23:37,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 21:23:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:37,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:38,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:42,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:42,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1835 [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-26 21:23:42,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 21:23:42,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:43,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 21:23:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:43,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:43,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:43,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 21:23:43,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:23:43,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 21:23:43,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:43,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 21:23:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:23:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 21:23:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:43,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 21:23:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:43,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:43,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 21:23:43,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:23:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-26 21:23:43,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:43,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 21:23:43,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 21:23:43,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 21:23:43,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:43,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 21:23:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 21:23:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 21:23:43,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 21:23:43,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 21:23:43,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 21:23:43,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 21:23:43,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 21:23:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 21:23:43,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 21:23:43,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 21:23:43,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 21:23:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 21:23:44,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3755945] [2020-10-26 21:23:44,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 21:23:44,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 21:23:44,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107134928] [2020-10-26 21:23:44,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 21:23:44,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 21:23:44,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 21:23:44,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 21:23:44,752 INFO L87 Difference]: Start difference. First operand 29925 states and 36993 transitions. Second operand 8 states. [2020-10-26 21:24:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 21:24:30,620 INFO L93 Difference]: Finished difference Result 88215 states and 120466 transitions. [2020-10-26 21:24:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 21:24:30,622 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1807 [2020-10-26 21:24:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 21:24:30,791 INFO L225 Difference]: With dead ends: 88215 [2020-10-26 21:24:30,792 INFO L226 Difference]: Without dead ends: 60026 [2020-10-26 21:24:30,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 21:24:30,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60026 states. [2020-10-26 21:24:32,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60026 to 59832. [2020-10-26 21:24:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59832 states.