/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=DEEPEST --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/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:08:27,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:08:27,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:08:27,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:08:27,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:08:27,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:08:27,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:08:27,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:08:27,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:08:27,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:08:27,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:08:27,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:08:27,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:08:27,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:08:27,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:08:27,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:08:27,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:08:27,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:08:27,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:08:27,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:08:27,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:08:27,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:08:27,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:08:27,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:08:27,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:08:27,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:08:27,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:08:27,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:08:27,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:08:27,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:08:27,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:08:27,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:08:27,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:08:27,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:08:27,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:08:27,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:08:27,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:08:27,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:08:27,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:08:27,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:08:27,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:08:27,801 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 [2020-10-27 23:08:27,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:08:27,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:08:27,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:08:27,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:08:27,855 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:08:27,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:08:27,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:08:27,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:08:27,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:08:27,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:08:27,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:08:27,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:08:27,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:08:27,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:08:27,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:08:27,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:08:27,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:08:27,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:08:27,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:08:27,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:08:27,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:08:27,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:08:27,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:08:27,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:08:27,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:08:28,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:08:28,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:08:28,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:08:28,306 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:08:28,307 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:08:28,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:08:28,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9becf543c/d68fa96bd2fb49f5adcaf7c87edc901d/FLAG379da3c59 [2020-10-27 23:08:29,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:08:29,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:08:29,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9becf543c/d68fa96bd2fb49f5adcaf7c87edc901d/FLAG379da3c59 [2020-10-27 23:08:29,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9becf543c/d68fa96bd2fb49f5adcaf7c87edc901d [2020-10-27 23:08:29,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:08:29,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:08:29,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:08:29,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:08:29,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:08:29,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c57803a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29, skipping insertion in model container [2020-10-27 23:08:29,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:08:29,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:08:29,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:08:29,755 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:08:29,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:08:29,873 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:08:29,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29 WrapperNode [2020-10-27 23:08:29,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:08:29,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:08:29,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:08:29,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:08:29,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (1/1) ... [2020-10-27 23:08:29,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:08:29,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:08:29,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:08:29,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:08:29,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (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 [2020-10-27 23:08:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:08:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:08:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:08:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:08:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:08:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:08:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:08:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:08:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:08:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:08:30,105 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:08:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:08:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:08:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:08:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:08:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:08:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:08:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:08:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:08:30,107 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:08:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:08:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:08:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:08:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:08:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:08:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:08:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:08:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:08:31,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:08:31,120 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:08:31,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:08:31 BoogieIcfgContainer [2020-10-27 23:08:31,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:08:31,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:08:31,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:08:31,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:08:31,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:08:29" (1/3) ... [2020-10-27 23:08:31,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d317a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:08:31, skipping insertion in model container [2020-10-27 23:08:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:08:29" (2/3) ... [2020-10-27 23:08:31,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d317a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:08:31, skipping insertion in model container [2020-10-27 23:08:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:08:31" (3/3) ... [2020-10-27 23:08:31,131 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-27 23:08:31,141 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:08:31,147 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:08:31,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:08:31,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:08:31,190 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:08:31,190 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:08:31,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:08:31,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:08:31,191 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:08:31,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:08:31,191 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:08:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-10-27 23:08:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 23:08:31,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:31,225 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] [2020-10-27 23:08:31,226 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:31,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:31,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1937700257, now seen corresponding path program 1 times [2020-10-27 23:08:31,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:31,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49265470] [2020-10-27 23:08:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 23:08:32,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-27 23:08:32,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:08:32,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:08:32,439 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:08:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:32,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:08:32,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:32,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:08:32,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:32,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 23:08:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:32,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:32,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 23:08:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:32,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:08:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:32,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:32,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:32,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:08:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:32,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:08:32,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:32,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:08:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:32,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:32,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:32,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:32,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:32,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:32,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:32,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:32,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:32,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49265470] [2020-10-27 23:08:32,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:32,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 23:08:32,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647296024] [2020-10-27 23:08:32,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 23:08:32,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:32,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 23:08:32,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-27 23:08:32,782 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 6 states. [2020-10-27 23:08:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:34,021 INFO L93 Difference]: Finished difference Result 299 states and 471 transitions. [2020-10-27 23:08:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 23:08:34,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-10-27 23:08:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:34,036 INFO L225 Difference]: With dead ends: 299 [2020-10-27 23:08:34,036 INFO L226 Difference]: Without dead ends: 185 [2020-10-27 23:08:34,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:08:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-27 23:08:34,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 170. [2020-10-27 23:08:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-27 23:08:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 272 transitions. [2020-10-27 23:08:34,107 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 272 transitions. Word has length 66 [2020-10-27 23:08:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:34,108 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 272 transitions. [2020-10-27 23:08:34,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 23:08:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 272 transitions. [2020-10-27 23:08:34,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 23:08:34,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:34,112 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] [2020-10-27 23:08:34,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:08:34,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:34,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:34,113 INFO L82 PathProgramCache]: Analyzing trace with hash 92333091, now seen corresponding path program 1 times [2020-10-27 23:08:34,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:34,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520537116] [2020-10-27 23:08:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:34,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:34,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 23:08:34,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 742 [2020-10-27 23:08:34,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-27 23:08:34,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:08:34,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,261 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:08:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:35,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:35,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 23:08:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 23:08:35,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:08:35,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:08:35,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-27 23:08:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:35,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:35,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:08:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:08:35,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 23:08:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:35,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:08:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 23:08:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:35,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:08:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-27 23:08:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:08:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:08:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:35,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:35,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:35,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:35,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520537116] [2020-10-27 23:08:35,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:35,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:35,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670051204] [2020-10-27 23:08:35,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:35,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:35,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:35,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:35,666 INFO L87 Difference]: Start difference. First operand 170 states and 272 transitions. Second operand 12 states. [2020-10-27 23:08:36,272 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:08:36,578 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:36,918 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:37,168 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:38,787 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2020-10-27 23:08:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 23:08:38,788 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2020-10-27 23:08:38,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:38,792 INFO L225 Difference]: With dead ends: 298 [2020-10-27 23:08:38,792 INFO L226 Difference]: Without dead ends: 194 [2020-10-27 23:08:38,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:08:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-27 23:08:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 170. [2020-10-27 23:08:38,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-27 23:08:38,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 242 transitions. [2020-10-27 23:08:38,827 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 242 transitions. Word has length 66 [2020-10-27 23:08:38,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:38,827 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 242 transitions. [2020-10-27 23:08:38,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 242 transitions. [2020-10-27 23:08:38,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 23:08:38,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:38,831 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] [2020-10-27 23:08:38,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:08:38,831 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:38,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2007534636, now seen corresponding path program 1 times [2020-10-27 23:08:38,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:38,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666708445] [2020-10-27 23:08:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:38,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:38,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:39,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:40,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:43,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:43,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-27 23:08:43,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:08:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-27 23:08:43,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:08:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 23:08:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 23:08:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:08:44,191 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:08:44,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:08:44,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-27 23:08:44,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 23:08:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:08:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:44,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:44,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:08:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:44,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 23:08:44,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:08:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:44,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:44,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:44,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:44,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:44,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:44,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:44,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:44,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:44,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:44,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:44,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:44,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:08:44,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:44,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666708445] [2020-10-27 23:08:44,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:44,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:08:44,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180049702] [2020-10-27 23:08:44,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:08:44,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:44,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:08:44,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:08:44,737 INFO L87 Difference]: Start difference. First operand 170 states and 242 transitions. Second operand 13 states. [2020-10-27 23:08:45,022 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:08:45,546 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:08:45,782 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:08:46,572 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-27 23:08:47,393 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-10-27 23:08:47,682 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-27 23:08:47,904 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2020-10-27 23:08:48,146 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:08:48,771 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-10-27 23:08:49,310 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 190 [2020-10-27 23:08:50,413 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 23:08:50,568 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-10-27 23:08:51,390 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-27 23:08:51,540 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-10-27 23:08:52,153 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-27 23:08:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:52,371 INFO L93 Difference]: Finished difference Result 756 states and 1153 transitions. [2020-10-27 23:08:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 23:08:52,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-27 23:08:52,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:52,380 INFO L225 Difference]: With dead ends: 756 [2020-10-27 23:08:52,380 INFO L226 Difference]: Without dead ends: 658 [2020-10-27 23:08:52,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=428, Invalid=1378, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 23:08:52,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-27 23:08:52,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 467. [2020-10-27 23:08:52,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-27 23:08:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 707 transitions. [2020-10-27 23:08:52,447 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 707 transitions. Word has length 95 [2020-10-27 23:08:52,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:52,447 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 707 transitions. [2020-10-27 23:08:52,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:08:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 707 transitions. [2020-10-27 23:08:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 23:08:52,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:52,451 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] [2020-10-27 23:08:52,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:08:52,452 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:52,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:52,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1890593305, now seen corresponding path program 1 times [2020-10-27 23:08:52,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:52,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790209266] [2020-10-27 23:08:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:53,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:57,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 23:08:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 23:08:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 23:08:57,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:08:57,763 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:08:57,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:57,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:57,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:57,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:57,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:57,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:57,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:08:57,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:57,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 23:08:57,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:57,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:57,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 23:08:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:08:57,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:08:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:57,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:57,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:57,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:57,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:57,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:57,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:57,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:57,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:57,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:57,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:57,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:08:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:57,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:57,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:57,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:57,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:57,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:57,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:57,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:08:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:58,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:58,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:58,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:58,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:58,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:58,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:58,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:58,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:58,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:58,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:58,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:58,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:08:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:58,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:58,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:58,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790209266] [2020-10-27 23:08:58,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:58,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:08:58,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723505386] [2020-10-27 23:08:58,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:08:58,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:58,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:08:58,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:08:58,159 INFO L87 Difference]: Start difference. First operand 467 states and 707 transitions. Second operand 14 states. [2020-10-27 23:08:58,438 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:58,989 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:08:59,253 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:59,500 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:09:01,585 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:09:01,809 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:02,074 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:09:02,322 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:09:05,568 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:09:05,843 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:08,266 INFO L93 Difference]: Finished difference Result 2734 states and 4270 transitions. [2020-10-27 23:09:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-27 23:09:08,266 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 96 [2020-10-27 23:09:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:08,291 INFO L225 Difference]: With dead ends: 2734 [2020-10-27 23:09:08,291 INFO L226 Difference]: Without dead ends: 2339 [2020-10-27 23:09:08,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=881, Invalid=3541, Unknown=0, NotChecked=0, Total=4422 [2020-10-27 23:09:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2020-10-27 23:09:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 1708. [2020-10-27 23:09:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1708 states. [2020-10-27 23:09:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2651 transitions. [2020-10-27 23:09:08,496 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2651 transitions. Word has length 96 [2020-10-27 23:09:08,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:08,496 INFO L481 AbstractCegarLoop]: Abstraction has 1708 states and 2651 transitions. [2020-10-27 23:09:08,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:09:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2651 transitions. [2020-10-27 23:09:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-27 23:09:08,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:08,500 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] [2020-10-27 23:09:08,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:09:08,500 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:08,501 INFO L82 PathProgramCache]: Analyzing trace with hash 871242141, now seen corresponding path program 1 times [2020-10-27 23:09:08,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:08,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362723510] [2020-10-27 23:09:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:08,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:09,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:09,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:13,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:13,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-27 23:09:13,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:09:13,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:13,787 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:09:13,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:13,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:13,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:13,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:13,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:13,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:13,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:13,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:09:13,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 23:09:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:13,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:09:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:13,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:13,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:13,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:09:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:13,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:09:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:13,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:14,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:14,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:14,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:09:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:14,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:09:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:14,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:14,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:14,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:09:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:14,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:14,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:09:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:14,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362723510] [2020-10-27 23:09:14,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:14,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:09:14,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143464090] [2020-10-27 23:09:14,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:09:14,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:14,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:09:14,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:09:14,163 INFO L87 Difference]: Start difference. First operand 1708 states and 2651 transitions. Second operand 10 states. [2020-10-27 23:09:14,419 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:09:14,941 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:09:16,580 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:16,783 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:09:19,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:19,781 INFO L93 Difference]: Finished difference Result 6711 states and 10515 transitions. [2020-10-27 23:09:19,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:09:19,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 97 [2020-10-27 23:09:19,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:19,812 INFO L225 Difference]: With dead ends: 6711 [2020-10-27 23:09:19,813 INFO L226 Difference]: Without dead ends: 5102 [2020-10-27 23:09:19,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 23:09:19,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2020-10-27 23:09:20,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 4378. [2020-10-27 23:09:20,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2020-10-27 23:09:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6794 transitions. [2020-10-27 23:09:20,223 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6794 transitions. Word has length 97 [2020-10-27 23:09:20,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:20,223 INFO L481 AbstractCegarLoop]: Abstraction has 4378 states and 6794 transitions. [2020-10-27 23:09:20,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:09:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6794 transitions. [2020-10-27 23:09:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-27 23:09:20,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:20,226 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] [2020-10-27 23:09:20,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:09:20,227 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:20,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2028861378, now seen corresponding path program 1 times [2020-10-27 23:09:20,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:20,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895144456] [2020-10-27 23:09:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:21,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:22,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 23:09:25,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:09:25,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 23:09:25,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:09:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-27 23:09:25,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:09:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,553 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:09:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:25,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:09:25,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:25,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:25,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:25,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:09:25,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 23:09:25,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:25,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 23:09:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:09:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:25,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:25,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:09:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:25,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:09:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:25,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:25,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:09:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:25,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:09:25,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:09:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:09:25,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:09:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:25,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:25,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:25,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:09:25,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:09:25,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:25,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895144456] [2020-10-27 23:09:25,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:25,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:09:25,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320336652] [2020-10-27 23:09:25,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:09:25,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:25,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:09:25,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:09:25,947 INFO L87 Difference]: Start difference. First operand 4378 states and 6794 transitions. Second operand 10 states. [2020-10-27 23:09:26,197 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:26,692 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:28,106 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:28,356 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:09:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:32,183 INFO L93 Difference]: Finished difference Result 23000 states and 35924 transitions. [2020-10-27 23:09:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 23:09:32,184 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 98 [2020-10-27 23:09:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:32,289 INFO L225 Difference]: With dead ends: 23000 [2020-10-27 23:09:32,289 INFO L226 Difference]: Without dead ends: 18721 [2020-10-27 23:09:32,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 23:09:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18721 states. [2020-10-27 23:09:33,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18721 to 14927. [2020-10-27 23:09:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14927 states. [2020-10-27 23:09:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14927 states to 14927 states and 23118 transitions. [2020-10-27 23:09:33,528 INFO L78 Accepts]: Start accepts. Automaton has 14927 states and 23118 transitions. Word has length 98 [2020-10-27 23:09:33,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:33,529 INFO L481 AbstractCegarLoop]: Abstraction has 14927 states and 23118 transitions. [2020-10-27 23:09:33,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 23:09:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 14927 states and 23118 transitions. [2020-10-27 23:09:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:09:33,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:33,532 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] [2020-10-27 23:09:33,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:09:33,533 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:33,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:33,533 INFO L82 PathProgramCache]: Analyzing trace with hash -784626390, now seen corresponding path program 1 times [2020-10-27 23:09:33,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:33,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9440061] [2020-10-27 23:09:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:33,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:33,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:33,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:33,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:34,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:34,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:38,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-27 23:09:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:09:38,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:38,928 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:09:38,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:38,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:38,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:38,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:38,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:09:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:38,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:38,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:38,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:09:38,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:09:38,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:38,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-27 23:09:38,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:09:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:39,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:39,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:09:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:39,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:39,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:39,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:09:39,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:09:39,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:09:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:39,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:39,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:09:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:39,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:09:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:39,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:39,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:09:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:09:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:39,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:39,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:39,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:09:39,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:39,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:39,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9440061] [2020-10-27 23:09:39,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:39,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:09:39,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089251537] [2020-10-27 23:09:39,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:09:39,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:39,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:09:39,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:09:39,236 INFO L87 Difference]: Start difference. First operand 14927 states and 23118 transitions. Second operand 9 states. [2020-10-27 23:09:39,513 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:09:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:43,573 INFO L93 Difference]: Finished difference Result 45363 states and 70635 transitions. [2020-10-27 23:09:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:09:43,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:09:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:43,713 INFO L225 Difference]: With dead ends: 45363 [2020-10-27 23:09:43,713 INFO L226 Difference]: Without dead ends: 30522 [2020-10-27 23:09:43,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:09:43,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30522 states. [2020-10-27 23:09:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30522 to 26489. [2020-10-27 23:09:45,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26489 states. [2020-10-27 23:09:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26489 states to 26489 states and 40582 transitions. [2020-10-27 23:09:45,914 INFO L78 Accepts]: Start accepts. Automaton has 26489 states and 40582 transitions. Word has length 99 [2020-10-27 23:09:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:45,914 INFO L481 AbstractCegarLoop]: Abstraction has 26489 states and 40582 transitions. [2020-10-27 23:09:45,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:09:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 26489 states and 40582 transitions. [2020-10-27 23:09:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:09:45,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:45,916 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] [2020-10-27 23:09:45,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:09:45,916 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:45,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1787437888, now seen corresponding path program 1 times [2020-10-27 23:09:45,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:45,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463571750] [2020-10-27 23:09:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:45,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:45,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:46,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:46,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:46,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:46,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:50,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:50,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:50,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:09:50,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 23:09:50,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,188 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:09:51,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:51,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:51,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 23:09:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:09:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:51,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:09:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:09:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:09:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:09:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:51,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:51,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:09:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:09:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:51,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:51,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:51,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:51,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463571750] [2020-10-27 23:09:51,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:51,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:09:51,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073873177] [2020-10-27 23:09:51,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:09:51,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:51,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:09:51,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:09:51,470 INFO L87 Difference]: Start difference. First operand 26489 states and 40582 transitions. Second operand 9 states. [2020-10-27 23:09:51,707 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:09:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:56,232 INFO L93 Difference]: Finished difference Result 79572 states and 122414 transitions. [2020-10-27 23:09:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:09:56,232 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:09:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:56,443 INFO L225 Difference]: With dead ends: 79572 [2020-10-27 23:09:56,443 INFO L226 Difference]: Without dead ends: 53171 [2020-10-27 23:09:56,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:09:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53171 states. [2020-10-27 23:09:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53171 to 46723. [2020-10-27 23:09:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46723 states. [2020-10-27 23:09:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46723 states to 46723 states and 70343 transitions. [2020-10-27 23:09:59,795 INFO L78 Accepts]: Start accepts. Automaton has 46723 states and 70343 transitions. Word has length 99 [2020-10-27 23:09:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:59,795 INFO L481 AbstractCegarLoop]: Abstraction has 46723 states and 70343 transitions. [2020-10-27 23:09:59,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:09:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 46723 states and 70343 transitions. [2020-10-27 23:09:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:09:59,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:59,797 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] [2020-10-27 23:09:59,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:09:59,797 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:59,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1829443368, now seen corresponding path program 1 times [2020-10-27 23:09:59,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:59,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542658358] [2020-10-27 23:09:59,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:59,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:00,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:03,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:04,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 23:10:04,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,096 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:05,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 23:10:05,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:05,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:10:05,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:05,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:05,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:10:05,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:10:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:10:05,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:10:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 23:10:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:10:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:05,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:05,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:10:05,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:10:05,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:05,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:10:05,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542658358] [2020-10-27 23:10:05,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:05,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:10:05,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460502047] [2020-10-27 23:10:05,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:10:05,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:05,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:10:05,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:10:05,406 INFO L87 Difference]: Start difference. First operand 46723 states and 70343 transitions. Second operand 9 states. [2020-10-27 23:10:05,695 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:10:12,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:12,234 INFO L93 Difference]: Finished difference Result 137330 states and 207431 transitions. [2020-10-27 23:10:12,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:10:12,235 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-27 23:10:12,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:12,879 INFO L225 Difference]: With dead ends: 137330 [2020-10-27 23:10:12,879 INFO L226 Difference]: Without dead ends: 90695 [2020-10-27 23:10:12,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:10:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90695 states. [2020-10-27 23:10:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90695 to 81027. [2020-10-27 23:10:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81027 states. [2020-10-27 23:10:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81027 states to 81027 states and 119159 transitions. [2020-10-27 23:10:19,605 INFO L78 Accepts]: Start accepts. Automaton has 81027 states and 119159 transitions. Word has length 99 [2020-10-27 23:10:19,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:19,605 INFO L481 AbstractCegarLoop]: Abstraction has 81027 states and 119159 transitions. [2020-10-27 23:10:19,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:10:19,605 INFO L276 IsEmpty]: Start isEmpty. Operand 81027 states and 119159 transitions. [2020-10-27 23:10:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 23:10:19,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:19,606 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] [2020-10-27 23:10:19,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:10:19,607 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:19,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:19,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1886649782, now seen corresponding path program 1 times [2020-10-27 23:10:19,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:19,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833922074] [2020-10-27 23:10:19,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:19,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:19,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:20,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 23:10:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:24,855 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:24,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:24,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:24,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:24,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:24,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:24,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:24,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:24,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:24,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:24,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:24,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:24,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:10:24,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:24,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:10:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:24,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:24,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:24,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:10:24,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:10:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:25,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:25,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:25,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:25,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:10:25,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:25,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:10:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:10:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:25,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:10:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:10:25,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833922074] [2020-10-27 23:10:25,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:25,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 23:10:25,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168337188] [2020-10-27 23:10:25,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 23:10:25,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:25,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 23:10:25,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 23:10:25,079 INFO L87 Difference]: Start difference. First operand 81027 states and 119159 transitions. Second operand 8 states. [2020-10-27 23:10:25,299 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:10:26,682 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:10:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:10:36,510 INFO L93 Difference]: Finished difference Result 238476 states and 354400 transitions. [2020-10-27 23:10:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:10:36,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-10-27 23:10:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:10:37,053 INFO L225 Difference]: With dead ends: 238476 [2020-10-27 23:10:37,053 INFO L226 Difference]: Without dead ends: 157534 [2020-10-27 23:10:37,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:10:37,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157534 states. [2020-10-27 23:10:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157534 to 142463. [2020-10-27 23:10:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142463 states. [2020-10-27 23:10:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142463 states to 142463 states and 204898 transitions. [2020-10-27 23:10:47,945 INFO L78 Accepts]: Start accepts. Automaton has 142463 states and 204898 transitions. Word has length 100 [2020-10-27 23:10:47,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:10:47,946 INFO L481 AbstractCegarLoop]: Abstraction has 142463 states and 204898 transitions. [2020-10-27 23:10:47,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 23:10:47,946 INFO L276 IsEmpty]: Start isEmpty. Operand 142463 states and 204898 transitions. [2020-10-27 23:10:47,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:10:47,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:10:47,947 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] [2020-10-27 23:10:47,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:10:47,947 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:10:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:10:47,948 INFO L82 PathProgramCache]: Analyzing trace with hash -15793057, now seen corresponding path program 1 times [2020-10-27 23:10:47,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:10:47,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375225029] [2020-10-27 23:10:47,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:10:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:48,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:48,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:49,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-27 23:10:52,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:10:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,221 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:10:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:10:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:10:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:10:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 23:10:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:10:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:10:53,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:10:53,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:10:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:10:53,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:10:53,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:10:53,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 23:10:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:10:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:10:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:10:53,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:10:53,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:10:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:10:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:10:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:10:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:10:53,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:10:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:10:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:10:53,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:10:53,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:10:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:10:53,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375225029] [2020-10-27 23:10:53,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:10:53,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:10:53,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728747915] [2020-10-27 23:10:53,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:10:53,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:10:53,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:10:53,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:10:53,521 INFO L87 Difference]: Start difference. First operand 142463 states and 204898 transitions. Second operand 13 states. [2020-10-27 23:10:53,797 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:10:54,352 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-27 23:10:54,578 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:10:55,632 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:10:56,451 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:10:57,515 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:11:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:11:13,346 INFO L93 Difference]: Finished difference Result 369976 states and 537955 transitions. [2020-10-27 23:11:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 23:11:13,346 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 102 [2020-10-27 23:11:13,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:11:14,157 INFO L225 Difference]: With dead ends: 369976 [2020-10-27 23:11:14,157 INFO L226 Difference]: Without dead ends: 227601 [2020-10-27 23:11:14,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=513, Invalid=1649, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 23:11:14,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227601 states. [2020-10-27 23:11:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227601 to 205631. [2020-10-27 23:11:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205631 states. [2020-10-27 23:11:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205631 states to 205631 states and 297231 transitions. [2020-10-27 23:11:29,505 INFO L78 Accepts]: Start accepts. Automaton has 205631 states and 297231 transitions. Word has length 102 [2020-10-27 23:11:29,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:11:29,505 INFO L481 AbstractCegarLoop]: Abstraction has 205631 states and 297231 transitions. [2020-10-27 23:11:29,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:11:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 205631 states and 297231 transitions. [2020-10-27 23:11:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 23:11:29,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:11:29,506 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] [2020-10-27 23:11:29,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 23:11:29,506 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:11:29,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:11:29,510 INFO L82 PathProgramCache]: Analyzing trace with hash -863624667, now seen corresponding path program 1 times [2020-10-27 23:11:29,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:11:29,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516737170] [2020-10-27 23:11:29,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:11:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:29,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 23:11:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:11:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:34,796 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-27 23:11:34,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:11:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:34,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:11:34,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:11:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:34,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 23:11:34,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:11:34,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 23:11:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:34,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-27 23:11:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:34,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:11:34,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:11:34,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:11:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:11:34,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:11:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:34,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 23:11:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:34,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 23:11:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:34,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 23:11:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:35,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:35,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:11:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 23:11:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:11:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:11:35,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:11:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:11:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:11:35,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516737170] [2020-10-27 23:11:35,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:11:35,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:11:35,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493642885] [2020-10-27 23:11:35,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:11:35,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:11:35,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:11:35,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:11:35,156 INFO L87 Difference]: Start difference. First operand 205631 states and 297231 transitions. Second operand 14 states. [2020-10-27 23:11:35,426 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:11:36,000 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:11:36,230 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:11:37,480 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-27 23:11:38,406 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:11:39,645 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:11:43,094 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:11:43,457 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77