/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:45:52,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:45:52,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:45:52,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:45:52,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:45:52,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:45:52,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:45:52,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:45:52,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:45:52,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:45:52,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:45:52,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:45:52,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:45:52,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:45:52,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:45:52,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:45:52,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:45:52,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:45:52,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:45:52,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:45:52,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:45:52,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:45:52,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:45:52,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:45:52,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:45:52,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:45:52,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:45:52,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:45:52,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:45:52,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:45:52,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:45:52,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:45:52,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:45:52,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:45:52,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:45:52,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:45:52,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:45:52,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:45:52,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:45:52,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:45:52,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:45:52,661 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 [2020-10-15 02:45:52,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:45:52,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:45:52,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:45:52,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:45:52,706 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:45:52,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:45:52,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:45:52,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:45:52,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:45:52,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:45:52,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:45:52,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:45:52,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:45:52,709 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:45:52,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:45:52,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:45:52,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:45:52,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:45:52,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:45:52,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:45:52,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:45:52,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:45:52,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:45:52,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:45:52,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:45:53,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:45:53,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:45:53,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:45:53,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:45:53,044 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:45:53,045 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:45:53,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89d4dcfac/035f182ae2624a81877948c973d2d66d/FLAG0151854a5 [2020-10-15 02:45:53,704 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:45:53,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:45:53,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89d4dcfac/035f182ae2624a81877948c973d2d66d/FLAG0151854a5 [2020-10-15 02:45:53,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89d4dcfac/035f182ae2624a81877948c973d2d66d [2020-10-15 02:45:53,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:45:53,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:45:53,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:45:53,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:45:53,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:45:53,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:45:53" (1/1) ... [2020-10-15 02:45:53,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3210105d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:53, skipping insertion in model container [2020-10-15 02:45:53,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:45:53" (1/1) ... [2020-10-15 02:45:53,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:45:54,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:45:54,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:45:54,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:45:54,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:45:54,706 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:45:54,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54 WrapperNode [2020-10-15 02:45:54,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:45:54,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:45:54,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:45:54,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:45:54,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (1/1) ... [2020-10-15 02:45:54,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:45:54,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:45:54,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:45:54,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:45:54,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (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 [2020-10-15 02:45:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:45:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:45:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 02:45:54,893 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:45:54,894 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:45:54,894 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:45:54,894 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-15 02:45:54,894 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:45:54,894 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:45:54,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:45:54,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:45:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:45:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:45:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:45:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:45:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:45:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:45:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 02:45:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:45:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:45:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:45:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:45:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:45:54,898 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-15 02:45:54,898 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:45:54,898 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:45:54,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:45:54,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:45:54,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:45:56,382 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:45:56,383 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:45:56,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:45:56 BoogieIcfgContainer [2020-10-15 02:45:56,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:45:56,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:45:56,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:45:56,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:45:56,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:45:53" (1/3) ... [2020-10-15 02:45:56,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac39eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:45:56, skipping insertion in model container [2020-10-15 02:45:56,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:45:54" (2/3) ... [2020-10-15 02:45:56,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac39eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:45:56, skipping insertion in model container [2020-10-15 02:45:56,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:45:56" (3/3) ... [2020-10-15 02:45:56,398 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2020-10-15 02:45:56,408 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:45:56,416 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:45:56,430 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:45:56,458 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:45:56,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:45:56,458 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:45:56,458 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:45:56,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:45:56,459 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:45:56,459 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:45:56,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:45:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-10-15 02:45:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:45:56,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:45:56,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:45:56,504 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:45:56,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:45:56,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2099975591, now seen corresponding path program 1 times [2020-10-15 02:45:56,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:45:56,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [448154527] [2020-10-15 02:45:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:45:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:57,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:57,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:45:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:57,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 632 [2020-10-15 02:45:57,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:57,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-15 02:45:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:45:58,111 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:45:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:45:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:45:58,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:45:58,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:58,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:45:58,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:45:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:45:58,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:45:58,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:45:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:45:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:45:58,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:45:58,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:45:58,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:45:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:58,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:45:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:58,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:58,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:58,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:45:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:58,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:45:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:45:58,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:45:58,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:45:58,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-15 02:45:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:45:58,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:45:58,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:45:58,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:45:58,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:45:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:45:58,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:45:58,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:45:58,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:45:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:45:58,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:45:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:45:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:45:58,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [448154527] [2020-10-15 02:45:58,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:45:58,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:45:58,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643765414] [2020-10-15 02:45:58,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:45:58,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:45:58,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:45:58,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:45:58,608 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 7 states. [2020-10-15 02:46:00,705 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:01,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:01,194 INFO L93 Difference]: Finished difference Result 563 states and 949 transitions. [2020-10-15 02:46:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:46:01,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-15 02:46:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:01,227 INFO L225 Difference]: With dead ends: 563 [2020-10-15 02:46:01,227 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 02:46:01,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:46:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 02:46:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 361. [2020-10-15 02:46:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-15 02:46:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 621 transitions. [2020-10-15 02:46:01,346 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 621 transitions. Word has length 108 [2020-10-15 02:46:01,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:01,347 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 621 transitions. [2020-10-15 02:46:01,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:46:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 621 transitions. [2020-10-15 02:46:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-15 02:46:01,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:01,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:46:01,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:46:01,352 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:01,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:01,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1301505367, now seen corresponding path program 1 times [2020-10-15 02:46:01,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:01,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639030564] [2020-10-15 02:46:01,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:01,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:02,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:02,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-15 02:46:02,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:02,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1235 [2020-10-15 02:46:02,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:02,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:46:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-15 02:46:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:46:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:03,122 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:03,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:03,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:46:03,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 02:46:03,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-15 02:46:03,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:03,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 02:46:03,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-15 02:46:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:46:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:03,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:03,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:03,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:46:03,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:03,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:46:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:03,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:46:03,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:03,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:46:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:03,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:03,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:03,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:46:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:03,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:46:03,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:03,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-15 02:46:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:03,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:46:03,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:46:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-15 02:46:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:03,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:03,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:03,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:03,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:03,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:03,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:03,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:03,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:03,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1639030564] [2020-10-15 02:46:03,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:03,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:46:03,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505484828] [2020-10-15 02:46:03,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:46:03,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:03,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:46:03,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:46:03,924 INFO L87 Difference]: Start difference. First operand 361 states and 621 transitions. Second operand 13 states. [2020-10-15 02:46:06,245 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-15 02:46:06,645 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-15 02:46:07,138 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-15 02:46:07,568 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-15 02:46:09,994 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:10,868 INFO L93 Difference]: Finished difference Result 561 states and 941 transitions. [2020-10-15 02:46:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:46:10,869 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-15 02:46:10,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:10,874 INFO L225 Difference]: With dead ends: 561 [2020-10-15 02:46:10,875 INFO L226 Difference]: Without dead ends: 402 [2020-10-15 02:46:10,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:46:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-15 02:46:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 361. [2020-10-15 02:46:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-15 02:46:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 575 transitions. [2020-10-15 02:46:10,922 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 575 transitions. Word has length 108 [2020-10-15 02:46:10,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:10,923 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 575 transitions. [2020-10-15 02:46:10,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:46:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 575 transitions. [2020-10-15 02:46:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-15 02:46:10,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:10,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:46:10,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:46:10,926 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:10,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:10,926 INFO L82 PathProgramCache]: Analyzing trace with hash 580123563, now seen corresponding path program 1 times [2020-10-15 02:46:10,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:10,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [248927750] [2020-10-15 02:46:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:11,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:11,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:13,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:13,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-15 02:46:16,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:46:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-15 02:46:16,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-15 02:46:16,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:46:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:16,483 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:16,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:16,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 02:46:16,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:16,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:16,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:16,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-15 02:46:16,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-15 02:46:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:16,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:16,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:46:16,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:16,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:16,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:16,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:16,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:46:16,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:16,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:16,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:46:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:16,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:46:16,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:16,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:16,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:46:16,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:46:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:16,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:16,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:16,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:16,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:16,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:46:16,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:16,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:46:16,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:46:16,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:17,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-15 02:46:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:17,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:17,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:17,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:17,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:17,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:17,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:17,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:17,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:17,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [248927750] [2020-10-15 02:46:17,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:17,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:17,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763828878] [2020-10-15 02:46:17,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:17,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:17,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:17,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:17,068 INFO L87 Difference]: Start difference. First operand 361 states and 575 transitions. Second operand 10 states. [2020-10-15 02:46:17,434 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:19,320 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:46:19,732 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:46:20,208 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:46:20,720 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:21,002 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:46:22,679 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-15 02:46:23,048 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:46:23,225 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-15 02:46:23,457 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:46:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:23,578 INFO L93 Difference]: Finished difference Result 754 states and 1207 transitions. [2020-10-15 02:46:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:46:23,581 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-15 02:46:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:23,587 INFO L225 Difference]: With dead ends: 754 [2020-10-15 02:46:23,587 INFO L226 Difference]: Without dead ends: 601 [2020-10-15 02:46:23,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:46:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2020-10-15 02:46:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 515. [2020-10-15 02:46:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-10-15 02:46:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 823 transitions. [2020-10-15 02:46:23,645 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 823 transitions. Word has length 153 [2020-10-15 02:46:23,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:23,646 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 823 transitions. [2020-10-15 02:46:23,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:46:23,646 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 823 transitions. [2020-10-15 02:46:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-15 02:46:23,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:23,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:46:23,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:46:23,650 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:23,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1237928331, now seen corresponding path program 1 times [2020-10-15 02:46:23,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:23,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410144309] [2020-10-15 02:46:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:23,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:24,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:24,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:25,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:25,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:26,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:28,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:28,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-15 02:46:28,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:46:28,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-15 02:46:28,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:28,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:28,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:46:28,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-15 02:46:28,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,194 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:29,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:29,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:46:29,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:29,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-15 02:46:29,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:46:29,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:29,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:29,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:46:29,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:29,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:46:29,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:29,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:29,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:29,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:46:29,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:29,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:29,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:46:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:46:29,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:46:29,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:46:29,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:46:29,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-15 02:46:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:29,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:29,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:29,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:29,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:29,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:29,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:29,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410144309] [2020-10-15 02:46:29,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:29,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:29,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190619871] [2020-10-15 02:46:29,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:29,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:29,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:29,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:29,945 INFO L87 Difference]: Start difference. First operand 515 states and 823 transitions. Second operand 10 states. [2020-10-15 02:46:30,356 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:30,763 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:46:31,461 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:46:32,221 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:46:36,224 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:36,578 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:37,166 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:37,479 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:38,413 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:38,788 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:39,724 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:40,344 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:41,132 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:46:42,409 INFO L93 Difference]: Finished difference Result 2085 states and 3338 transitions. [2020-10-15 02:46:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:46:42,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-10-15 02:46:42,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:46:42,420 INFO L225 Difference]: With dead ends: 2085 [2020-10-15 02:46:42,420 INFO L226 Difference]: Without dead ends: 1619 [2020-10-15 02:46:42,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:46:42,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2020-10-15 02:46:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1407. [2020-10-15 02:46:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1407 states. [2020-10-15 02:46:42,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 2238 transitions. [2020-10-15 02:46:42,557 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 2238 transitions. Word has length 156 [2020-10-15 02:46:42,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:46:42,560 INFO L479 AbstractCegarLoop]: Abstraction has 1407 states and 2238 transitions. [2020-10-15 02:46:42,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:46:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 2238 transitions. [2020-10-15 02:46:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-15 02:46:42,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:46:42,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:46:42,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:46:42,565 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:46:42,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:46:42,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1224925767, now seen corresponding path program 1 times [2020-10-15 02:46:42,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:46:42,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427487363] [2020-10-15 02:46:42,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:46:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:42,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:42,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:42,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:43,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:45,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:45,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:46,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:47,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:47,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-15 02:46:47,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:46:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-15 02:46:47,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:47,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:46:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-15 02:46:47,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:46:48,140 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:46:48,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:46:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:46:48,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-15 02:46:48,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:48,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:48,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:46:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:46:48,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-15 02:46:48,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:46:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:46:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:46:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:46:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:48,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:48,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:46:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:48,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:46:48,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:48,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:48,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:46:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:48,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:46:48,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:48,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:46:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:46:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:46:48,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:48,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:46:48,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:46:48,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:46:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:46:48,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:46:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:46:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:46:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:48,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-15 02:46:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:46:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:46:48,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:46:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:46:48,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:46:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:46:48,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:46:48,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:46:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:46:48,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:46:48,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:46:48,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:46:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:46:49,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427487363] [2020-10-15 02:46:49,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:46:49,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:46:49,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523576838] [2020-10-15 02:46:49,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:46:49,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:46:49,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:46:49,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:46:49,115 INFO L87 Difference]: Start difference. First operand 1407 states and 2238 transitions. Second operand 10 states. [2020-10-15 02:46:49,717 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:46:50,162 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:46:50,633 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:46:51,370 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:46:56,323 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:46:56,693 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:57,313 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:57,693 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:58,605 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:46:59,054 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:46:59,370 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:46:59,956 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:00,625 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:01,334 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:02,668 INFO L93 Difference]: Finished difference Result 5939 states and 9487 transitions. [2020-10-15 02:47:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:47:02,672 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-15 02:47:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:02,704 INFO L225 Difference]: With dead ends: 5939 [2020-10-15 02:47:02,705 INFO L226 Difference]: Without dead ends: 4635 [2020-10-15 02:47:02,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:47:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2020-10-15 02:47:03,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 4047. [2020-10-15 02:47:03,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4047 states. [2020-10-15 02:47:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 6417 transitions. [2020-10-15 02:47:03,068 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 6417 transitions. Word has length 157 [2020-10-15 02:47:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:03,068 INFO L479 AbstractCegarLoop]: Abstraction has 4047 states and 6417 transitions. [2020-10-15 02:47:03,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 6417 transitions. [2020-10-15 02:47:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-15 02:47:03,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:03,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:47:03,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:47:03,080 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1967685670, now seen corresponding path program 1 times [2020-10-15 02:47:03,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:03,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177661584] [2020-10-15 02:47:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:03,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:03,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:03,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:03,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:05,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:05,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:08,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:08,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-15 02:47:08,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:47:08,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-15 02:47:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:08,719 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:08,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:08,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:08,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:08,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:08,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:47:08,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:08,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:08,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:08,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:08,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:08,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-15 02:47:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:08,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:47:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:09,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:09,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:09,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:09,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:47:09,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:09,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:09,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:47:09,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:09,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:09,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:47:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:09,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:47:09,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:09,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:09,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:09,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:47:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:47:09,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:47:09,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-15 02:47:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:47:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-15 02:47:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:09,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:09,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:09,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:09,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:09,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:09,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:09,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:09,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:09,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177661584] [2020-10-15 02:47:09,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:09,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:09,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680353082] [2020-10-15 02:47:09,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:09,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:09,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:09,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:09,653 INFO L87 Difference]: Start difference. First operand 4047 states and 6417 transitions. Second operand 10 states. [2020-10-15 02:47:10,037 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:47:10,447 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:47:10,988 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:47:11,735 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:47:16,766 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:47:17,085 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:17,794 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:18,095 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:18,553 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:19,159 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:19,548 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:19,974 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:20,645 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:21,309 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:21,652 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:22,132 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:23,277 INFO L93 Difference]: Finished difference Result 17407 states and 27752 transitions. [2020-10-15 02:47:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:47:23,278 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-15 02:47:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:23,347 INFO L225 Difference]: With dead ends: 17407 [2020-10-15 02:47:23,347 INFO L226 Difference]: Without dead ends: 13481 [2020-10-15 02:47:23,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:47:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13481 states. [2020-10-15 02:47:24,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13481 to 11771. [2020-10-15 02:47:24,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11771 states. [2020-10-15 02:47:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11771 states to 11771 states and 18590 transitions. [2020-10-15 02:47:24,343 INFO L78 Accepts]: Start accepts. Automaton has 11771 states and 18590 transitions. Word has length 158 [2020-10-15 02:47:24,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:24,344 INFO L479 AbstractCegarLoop]: Abstraction has 11771 states and 18590 transitions. [2020-10-15 02:47:24,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 11771 states and 18590 transitions. [2020-10-15 02:47:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-15 02:47:24,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:24,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:47:24,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:47:24,371 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:24,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1810739998, now seen corresponding path program 1 times [2020-10-15 02:47:24,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:24,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494386455] [2020-10-15 02:47:24,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:24,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:24,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:25,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:26,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:29,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:29,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 02:47:29,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:47:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,000 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:30,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:30,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:47:30,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:30,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:30,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:47:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:30,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:30,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:30,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:30,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:47:30,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:30,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:30,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:30,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:47:30,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:47:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:47:30,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:47:30,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-15 02:47:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:30,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-15 02:47:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:47:30,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:47:30,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:47:30,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:30,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-15 02:47:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:30,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:30,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:30,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:30,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:30,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:30,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:30,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:30,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494386455] [2020-10-15 02:47:30,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:30,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:30,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26151089] [2020-10-15 02:47:30,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:30,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:30,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:30,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:30,480 INFO L87 Difference]: Start difference. First operand 11771 states and 18590 transitions. Second operand 10 states. [2020-10-15 02:47:30,881 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:47:33,171 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:47:33,910 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-15 02:47:34,305 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:47:35,140 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:47:37,199 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-15 02:47:37,336 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-15 02:47:37,502 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-15 02:47:37,777 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-15 02:47:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:47:38,021 INFO L93 Difference]: Finished difference Result 24870 states and 39656 transitions. [2020-10-15 02:47:38,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:47:38,028 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-15 02:47:38,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:47:38,115 INFO L225 Difference]: With dead ends: 24870 [2020-10-15 02:47:38,115 INFO L226 Difference]: Without dead ends: 18790 [2020-10-15 02:47:38,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:47:38,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18790 states. [2020-10-15 02:47:40,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18790 to 16046. [2020-10-15 02:47:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16046 states. [2020-10-15 02:47:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16046 states to 16046 states and 25330 transitions. [2020-10-15 02:47:40,299 INFO L78 Accepts]: Start accepts. Automaton has 16046 states and 25330 transitions. Word has length 159 [2020-10-15 02:47:40,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:47:40,299 INFO L479 AbstractCegarLoop]: Abstraction has 16046 states and 25330 transitions. [2020-10-15 02:47:40,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:47:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 16046 states and 25330 transitions. [2020-10-15 02:47:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-15 02:47:40,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:47:40,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:47:40,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:47:40,327 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:47:40,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:47:40,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1056794945, now seen corresponding path program 1 times [2020-10-15 02:47:40,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:47:40,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658313938] [2020-10-15 02:47:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:47:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:40,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:40,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:41,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:45,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:45,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:47:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:45,799 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:47:45,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:47:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:45,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:45,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:45,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:45,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:45,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:47:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:45,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:45,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:47:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:47:45,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:47:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:47:46,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:46,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:47:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:46,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:47:46,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:47:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:47:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:47:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:47:46,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:47:46,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:47:46,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:47:46,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:47:46,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:47:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-15 02:47:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:47:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-15 02:47:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:46,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:47:46,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-15 02:47:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:47:46,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:47:46,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:47:46,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:47:46,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:47:46,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:47:46,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:47:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:47:46,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658313938] [2020-10-15 02:47:46,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:47:46,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:47:46,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838253064] [2020-10-15 02:47:46,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:47:46,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:47:46,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:47:46,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:47:46,300 INFO L87 Difference]: Start difference. First operand 16046 states and 25330 transitions. Second operand 10 states. [2020-10-15 02:47:46,723 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:47:47,147 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:47:47,706 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:47:48,507 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:47:54,442 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:47:54,874 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:55,135 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:55,615 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:56,024 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:56,520 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:57,021 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:57,640 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:57,885 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:58,501 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:47:58,993 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:47:59,255 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:47:59,815 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:48:01,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:01,572 INFO L93 Difference]: Finished difference Result 63706 states and 100955 transitions. [2020-10-15 02:48:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:48:01,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-15 02:48:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:01,759 INFO L225 Difference]: With dead ends: 63706 [2020-10-15 02:48:01,760 INFO L226 Difference]: Without dead ends: 47772 [2020-10-15 02:48:01,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:48:01,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47772 states. [2020-10-15 02:48:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47772 to 41588. [2020-10-15 02:48:04,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41588 states. [2020-10-15 02:48:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41588 states to 41588 states and 65003 transitions. [2020-10-15 02:48:05,807 INFO L78 Accepts]: Start accepts. Automaton has 41588 states and 65003 transitions. Word has length 162 [2020-10-15 02:48:05,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:05,808 INFO L479 AbstractCegarLoop]: Abstraction has 41588 states and 65003 transitions. [2020-10-15 02:48:05,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:48:05,808 INFO L276 IsEmpty]: Start isEmpty. Operand 41588 states and 65003 transitions. [2020-10-15 02:48:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-15 02:48:05,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:05,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:48:05,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:48:05,874 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:05,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:05,874 INFO L82 PathProgramCache]: Analyzing trace with hash 681417955, now seen corresponding path program 1 times [2020-10-15 02:48:05,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:05,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310532220] [2020-10-15 02:48:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:05,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:06,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:06,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:06,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:09,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:10,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:10,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:10,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-15 02:48:10,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,355 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:48:11,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:11,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:48:11,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:48:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:48:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:48:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:11,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:48:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:48:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:48:11,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:48:11,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:48:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-15 02:48:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-15 02:48:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:48:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-15 02:48:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:11,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:11,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:11,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:11,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:11,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:11,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:48:11,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310532220] [2020-10-15 02:48:11,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:11,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:48:11,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949041955] [2020-10-15 02:48:11,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:48:11,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:11,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:48:11,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:48:11,845 INFO L87 Difference]: Start difference. First operand 41588 states and 65003 transitions. Second operand 10 states. [2020-10-15 02:48:12,267 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:48:12,693 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-15 02:48:13,288 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:48:14,148 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 258 [2020-10-15 02:48:21,791 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:48:22,233 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:22,508 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:48:22,947 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:23,727 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:24,160 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:48:24,658 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:25,528 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:25,782 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:26,339 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:48:27,007 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:48:27,291 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:48:27,770 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:48:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:48:30,713 INFO L93 Difference]: Finished difference Result 157577 states and 246687 transitions. [2020-10-15 02:48:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:48:30,714 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2020-10-15 02:48:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:48:31,166 INFO L225 Difference]: With dead ends: 157577 [2020-10-15 02:48:31,166 INFO L226 Difference]: Without dead ends: 116434 [2020-10-15 02:48:31,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:48:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116434 states. [2020-10-15 02:48:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116434 to 102974. [2020-10-15 02:48:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102974 states. [2020-10-15 02:48:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102974 states to 102974 states and 158795 transitions. [2020-10-15 02:48:39,765 INFO L78 Accepts]: Start accepts. Automaton has 102974 states and 158795 transitions. Word has length 163 [2020-10-15 02:48:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:48:39,765 INFO L479 AbstractCegarLoop]: Abstraction has 102974 states and 158795 transitions. [2020-10-15 02:48:39,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:48:39,766 INFO L276 IsEmpty]: Start isEmpty. Operand 102974 states and 158795 transitions. [2020-10-15 02:48:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-15 02:48:39,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:48:39,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:48:39,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:48:39,859 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:48:39,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:48:39,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1793873926, now seen corresponding path program 1 times [2020-10-15 02:48:39,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:48:39,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14524098] [2020-10-15 02:48:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:48:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:39,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:40,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:41,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:42,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:42,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:44,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:48:44,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-15 02:48:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,342 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 02:48:45,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:48:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:48:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:48:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:48:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-15 02:48:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:48:45,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:48:45,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:48:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-15 02:48:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:45,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:48:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-15 02:48:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:48:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:48:45,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:48:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-15 02:48:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-15 02:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-15 02:48:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:48:45,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:45,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-15 02:48:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:48:45,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:48:45,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:48:45,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:48:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:48:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:48:45,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14524098] [2020-10-15 02:48:45,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:48:45,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:48:45,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858034304] [2020-10-15 02:48:45,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:48:45,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:48:45,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:48:45,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:48:45,841 INFO L87 Difference]: Start difference. First operand 102974 states and 158795 transitions. Second operand 10 states. [2020-10-15 02:48:46,502 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-15 02:48:46,956 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-15 02:48:47,609 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-10-15 02:48:49,064 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 261 [2020-10-15 02:49:01,981 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-15 02:49:02,454 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:49:02,783 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:49:03,203 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:49:03,912 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:49:07,003 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:49:07,550 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:49:08,423 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:49:08,725 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:49:09,109 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:49:09,950 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-15 02:49:10,256 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-15 02:49:10,654 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-15 02:49:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:49:15,674 INFO L93 Difference]: Finished difference Result 410238 states and 635340 transitions. [2020-10-15 02:49:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:49:15,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-15 02:49:15,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:49:16,732 INFO L225 Difference]: With dead ends: 410238 [2020-10-15 02:49:16,733 INFO L226 Difference]: Without dead ends: 309809 [2020-10-15 02:49:16,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:49:17,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309809 states.