/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=NARROWEST --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/recursive/MultCommutative-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:55:50,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:55:50,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:55:50,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:55:50,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:55:50,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:55:50,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:55:50,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:55:50,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:55:50,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:55:50,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:55:50,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:55:50,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:55:50,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:55:50,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:55:50,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:55:50,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:55:50,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:55:50,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:55:50,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:55:50,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:55:50,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:55:50,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:55:50,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:55:50,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:55:50,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:55:50,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:55:50,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:55:50,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:55:50,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:55:50,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:55:50,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:55:50,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:55:50,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:55:50,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:55:50,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:55:50,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:55:50,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:55:50,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:55:50,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:55:50,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:55:50,723 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 [2020-10-13 12:55:50,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:55:50,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:55:50,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:55:50,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:55:50,768 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:55:50,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:55:50,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:55:50,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:55:50,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:55:50,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:55:50,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:55:50,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:55:50,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:55:50,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:55:50,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:55:50,772 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:55:50,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:55:50,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:55:50,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:55:50,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:55:50,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:55:50,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:55:50,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:55:50,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:55:50,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:55:50,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:55:50,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:55:50,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:55:50,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:55:50,774 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:55:51,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:55:51,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:55:51,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:55:51,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:55:51,080 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:55:51,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/MultCommutative-2.c [2020-10-13 12:55:51,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaaecac2/28a35738130646e7be805ba616a530c6/FLAG8f88c6307 [2020-10-13 12:55:51,588 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:55:51,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/MultCommutative-2.c [2020-10-13 12:55:51,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaaecac2/28a35738130646e7be805ba616a530c6/FLAG8f88c6307 [2020-10-13 12:55:51,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beaaecac2/28a35738130646e7be805ba616a530c6 [2020-10-13 12:55:52,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:55:52,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:55:52,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:55:52,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:55:52,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:55:52,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:51" (1/1) ... [2020-10-13 12:55:52,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52, skipping insertion in model container [2020-10-13 12:55:52,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:51" (1/1) ... [2020-10-13 12:55:52,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:55:52,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:55:52,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:55:52,283 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:55:52,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:55:52,323 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:55:52,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52 WrapperNode [2020-10-13 12:55:52,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:55:52,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:55:52,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:55:52,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:55:52,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (1/1) ... [2020-10-13 12:55:52,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:55:52,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:55:52,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:55:52,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:55:52,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (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 [2020-10-13 12:55:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:55:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:55:52,530 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2020-10-13 12:55:52,530 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:55:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:55:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:55:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2020-10-13 12:55:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:55:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:55:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:55:52,711 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:55:52,711 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 12:55:52,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:52 BoogieIcfgContainer [2020-10-13 12:55:52,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:55:52,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:55:52,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:55:52,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:55:52,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:55:51" (1/3) ... [2020-10-13 12:55:52,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddf2477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:52, skipping insertion in model container [2020-10-13 12:55:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:52" (2/3) ... [2020-10-13 12:55:52,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddf2477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:52, skipping insertion in model container [2020-10-13 12:55:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:52" (3/3) ... [2020-10-13 12:55:52,724 INFO L109 eAbstractionObserver]: Analyzing ICFG MultCommutative-2.c [2020-10-13 12:55:52,735 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:55:52,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:55:52,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:55:52,831 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:55:52,831 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:55:52,832 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:55:52,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:55:52,832 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:55:52,832 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:55:52,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:55:52,833 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:55:52,855 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-13 12:55:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 12:55:52,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:52,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:52,880 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:52,886 INFO L82 PathProgramCache]: Analyzing trace with hash -962219036, now seen corresponding path program 1 times [2020-10-13 12:55:52,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:52,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15402491] [2020-10-13 12:55:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:55:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-10-13 12:55:53,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-13 12:55:53,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 12:55:53,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:55:53,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:53,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:53,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:53,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:53,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:53,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:55:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:53,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:53,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:53,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:55:53,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:53,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:53,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:53,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 12:55:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:53,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:53,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:53,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:53,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:55:53,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:53,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:53,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 12:55:53,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15402491] [2020-10-13 12:55:53,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:55:53,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 12:55:53,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116424027] [2020-10-13 12:55:53,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 12:55:53,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:53,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 12:55:53,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:55:53,966 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-10-13 12:55:54,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:54,096 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2020-10-13 12:55:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:55:54,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-13 12:55:54,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:54,109 INFO L225 Difference]: With dead ends: 40 [2020-10-13 12:55:54,109 INFO L226 Difference]: Without dead ends: 26 [2020-10-13 12:55:54,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:55:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-13 12:55:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-13 12:55:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-13 12:55:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-10-13 12:55:54,160 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 23 [2020-10-13 12:55:54,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:54,161 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-13 12:55:54,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 12:55:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-10-13 12:55:54,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 12:55:54,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:54,164 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:54,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:55:54,165 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:54,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:54,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1030563421, now seen corresponding path program 1 times [2020-10-13 12:55:54,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:54,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682249065] [2020-10-13 12:55:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:54,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 12:55:54,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:54,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:55:54,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:55:54,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 12:55:54,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:54,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:54,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:54,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:54,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:54,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:55:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:54,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:54,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:54,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:55:54,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:54,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 12:55:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:54,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:54,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:54,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:55:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 12:55:54,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:54,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:54,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:54,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:55:54,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:54,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 12:55:54,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682249065] [2020-10-13 12:55:54,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:54,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 12:55:54,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163173890] [2020-10-13 12:55:54,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 12:55:54,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:54,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 12:55:54,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:55:54,335 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 5 states. [2020-10-13 12:55:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:54,405 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2020-10-13 12:55:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:55:54,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-13 12:55:54,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:54,407 INFO L225 Difference]: With dead ends: 32 [2020-10-13 12:55:54,407 INFO L226 Difference]: Without dead ends: 26 [2020-10-13 12:55:54,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:55:54,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-13 12:55:54,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-13 12:55:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-13 12:55:54,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-10-13 12:55:54,416 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 30 [2020-10-13 12:55:54,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:54,417 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-13 12:55:54,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 12:55:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-10-13 12:55:54,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 12:55:54,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:54,419 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:54,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:55:54,420 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:54,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:54,420 INFO L82 PathProgramCache]: Analyzing trace with hash -315179220, now seen corresponding path program 1 times [2020-10-13 12:55:54,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:54,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438247430] [2020-10-13 12:55:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:54,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 12:55:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 12:55:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1755 [2020-10-13 12:55:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 12:55:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:56,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:56,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:56,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:55:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:56,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:55:56,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 12:55:56,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:55:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:56,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:55:56,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-13 12:55:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 12:55:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:55:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:56,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:56,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 12:55:56,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:56,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:55:56,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:55:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 12:55:56,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438247430] [2020-10-13 12:55:56,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:56,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:55:56,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885583035] [2020-10-13 12:55:56,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:55:56,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:56,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:55:56,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:55:56,684 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 8 states. [2020-10-13 12:55:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:56,842 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2020-10-13 12:55:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 12:55:56,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-10-13 12:55:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:56,845 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:55:56,845 INFO L226 Difference]: Without dead ends: 32 [2020-10-13 12:55:56,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:55:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-13 12:55:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-13 12:55:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-13 12:55:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-10-13 12:55:56,855 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 43 [2020-10-13 12:55:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:56,856 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-10-13 12:55:56,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:55:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-10-13 12:55:56,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 12:55:56,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:56,859 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:56,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:55:56,859 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:56,860 INFO L82 PathProgramCache]: Analyzing trace with hash 746268336, now seen corresponding path program 2 times [2020-10-13 12:55:56,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:56,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763613424] [2020-10-13 12:55:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 12:55:57,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-13 12:55:57,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 12:55:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:55:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 12:55:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:57,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:57,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:57,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:55:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 12:55:57,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 12:55:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:55:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:57,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:55:57,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:57,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:57,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:55:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:57,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 12:55:57,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:55:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:57,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:55:57,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:57,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:57,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:57,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:55:57,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 12:55:57,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763613424] [2020-10-13 12:55:57,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:57,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 12:55:57,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262861653] [2020-10-13 12:55:57,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 12:55:57,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 12:55:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:55:57,591 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 14 states. [2020-10-13 12:55:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:57,857 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2020-10-13 12:55:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:55:57,858 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-10-13 12:55:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:57,859 INFO L225 Difference]: With dead ends: 45 [2020-10-13 12:55:57,860 INFO L226 Difference]: Without dead ends: 41 [2020-10-13 12:55:57,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:55:57,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-13 12:55:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2020-10-13 12:55:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 12:55:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2020-10-13 12:55:57,871 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 37 [2020-10-13 12:55:57,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:57,871 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2020-10-13 12:55:57,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 12:55:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-10-13 12:55:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 12:55:57,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:57,886 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:57,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:55:57,888 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:57,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:57,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1837502139, now seen corresponding path program 3 times [2020-10-13 12:55:57,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:57,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397084855] [2020-10-13 12:55:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:57,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 12:55:58,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-13 12:55:58,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 12:55:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:55:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 12:55:58,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:58,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:58,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:58,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:55:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:58,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 12:55:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 12:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:55:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 12:55:58,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:58,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:58,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:55:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:55:58,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 12:55:58,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:55:58,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:55:58,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:55:58,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:55:58,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:55:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:55:58,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:58,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:55:58,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-13 12:55:59,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397084855] [2020-10-13 12:55:59,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:59,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 12:55:59,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613052273] [2020-10-13 12:55:59,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 12:55:59,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:59,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 12:55:59,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-13 12:55:59,043 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 18 states. [2020-10-13 12:55:59,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:59,548 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-10-13 12:55:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:55:59,549 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2020-10-13 12:55:59,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:59,551 INFO L225 Difference]: With dead ends: 41 [2020-10-13 12:55:59,551 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 12:55:59,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2020-10-13 12:55:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 12:55:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-13 12:55:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-13 12:55:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-10-13 12:55:59,566 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 44 [2020-10-13 12:55:59,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:59,567 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-10-13 12:55:59,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 12:55:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2020-10-13 12:55:59,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 12:55:59,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:59,569 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:59,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:55:59,570 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:59,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:59,571 INFO L82 PathProgramCache]: Analyzing trace with hash 124271423, now seen corresponding path program 2 times [2020-10-13 12:55:59,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:59,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035686924] [2020-10-13 12:55:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:59,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 12:56:00,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 12:56:00,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1224 [2020-10-13 12:56:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:56:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:56:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:56:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:00,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:00,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:00,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:56:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:00,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:56:01,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:56:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-13 12:56:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:56:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:56:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 12:56:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:01,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:56:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:01,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:56:01,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 12:56:01,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:01,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:01,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:56:01,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:56:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:56:01,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:01,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 12:56:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:01,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:56:01,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 12:56:01,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:01,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:01,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:01,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:56:01,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:01,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:01,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:56:01,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-13 12:56:01,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035686924] [2020-10-13 12:56:01,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:01,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:56:01,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361255245] [2020-10-13 12:56:01,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:56:01,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:01,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:56:01,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:56:01,344 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 8 states. [2020-10-13 12:56:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:01,465 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-13 12:56:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:56:01,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-10-13 12:56:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:01,467 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:01,467 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 12:56:01,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:56:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 12:56:01,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2020-10-13 12:56:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-13 12:56:01,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-10-13 12:56:01,477 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 50 [2020-10-13 12:56:01,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:01,477 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-10-13 12:56:01,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:56:01,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-10-13 12:56:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 12:56:01,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:01,479 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:01,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:56:01,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:01,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1146349017, now seen corresponding path program 4 times [2020-10-13 12:56:01,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:01,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470365100] [2020-10-13 12:56:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-13 12:56:01,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-13 12:56:01,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 12:56:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:01,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 12:56:01,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:01,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:01,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:01,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:01,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:01,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:01,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:01,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:01,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 12:56:01,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:01,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:01,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:02,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:02,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:02,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:02,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:02,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:02,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 12:56:02,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:02,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:02,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:02,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:02,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:02,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:02,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:02,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:02,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:02,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:56:02,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:02,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:02,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:02,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:02,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:02,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:02,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:02,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 12:56:02,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:02,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:02,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:02,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:02,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:02,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:02,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:02,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:02,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:02,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:02,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 5 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-13 12:56:02,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470365100] [2020-10-13 12:56:02,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:02,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 12:56:02,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407818772] [2020-10-13 12:56:02,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 12:56:02,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:02,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 12:56:02,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-13 12:56:02,431 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 16 states. [2020-10-13 12:56:02,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:02,832 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2020-10-13 12:56:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:56:02,832 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 44 [2020-10-13 12:56:02,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:02,834 INFO L225 Difference]: With dead ends: 39 [2020-10-13 12:56:02,834 INFO L226 Difference]: Without dead ends: 35 [2020-10-13 12:56:02,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2020-10-13 12:56:02,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-13 12:56:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-10-13 12:56:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-13 12:56:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2020-10-13 12:56:02,848 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 44 [2020-10-13 12:56:02,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:02,848 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2020-10-13 12:56:02,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 12:56:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2020-10-13 12:56:02,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:56:02,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:02,850 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:02,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:56:02,851 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:02,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:02,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1605933725, now seen corresponding path program 5 times [2020-10-13 12:56:02,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:02,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736763777] [2020-10-13 12:56:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:02,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:03,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:03,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 12:56:03,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:03,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-10-13 12:56:03,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 12:56:03,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:03,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:56:03,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:03,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:03,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:03,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:03,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:03,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:03,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:03,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:03,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:03,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:03,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:03,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:03,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:56:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:03,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:03,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:03,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:03,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:03,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:03,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:56:03,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:03,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:03,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:03,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:03,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:03,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:03,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:03,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:03,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:03,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:03,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:04,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:04,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-13 12:56:04,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:04,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:04,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:04,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:04,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:04,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 12:56:04,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:04,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:04,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 12:56:04,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:04,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:04,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:04,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:04,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:04,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:04,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:04,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:56:04,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 64 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-13 12:56:04,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736763777] [2020-10-13 12:56:04,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:04,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 12:56:04,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144920470] [2020-10-13 12:56:04,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 12:56:04,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 12:56:04,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2020-10-13 12:56:04,562 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand 20 states. [2020-10-13 12:56:05,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:05,164 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2020-10-13 12:56:05,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:56:05,165 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 58 [2020-10-13 12:56:05,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:05,166 INFO L225 Difference]: With dead ends: 42 [2020-10-13 12:56:05,166 INFO L226 Difference]: Without dead ends: 38 [2020-10-13 12:56:05,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:56:05,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-13 12:56:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-13 12:56:05,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-13 12:56:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2020-10-13 12:56:05,180 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 58 [2020-10-13 12:56:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:05,181 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2020-10-13 12:56:05,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 12:56:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2020-10-13 12:56:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 12:56:05,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:05,187 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:05,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:56:05,188 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash 921134702, now seen corresponding path program 6 times [2020-10-13 12:56:05,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:05,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612024812] [2020-10-13 12:56:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:05,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:05,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:05,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:56:05,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-10-13 12:56:05,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:05,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 12:56:05,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:05,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 12:56:05,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:05,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:05,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:05,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:05,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:56:05,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:05,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:05,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:05,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:06,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 12:56:06,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:06,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 12:56:06,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:06,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:06,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:06,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:06,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:06,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:06,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-13 12:56:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:06,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:06,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-13 12:56:06,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:06,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:06,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 12:56:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:06,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:06,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:06,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:06,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:06,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:06,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 12:56:06,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:06,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:06,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:07,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:07,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:07,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:07,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:07,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:07,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 12:56:07,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:07,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:07,181 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 6 proven. 102 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-13 12:56:07,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612024812] [2020-10-13 12:56:07,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:07,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 12:56:07,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294847047] [2020-10-13 12:56:07,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 12:56:07,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:07,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 12:56:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-13 12:56:07,188 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 22 states. [2020-10-13 12:56:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:07,900 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-10-13 12:56:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:56:07,901 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-10-13 12:56:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:07,903 INFO L225 Difference]: With dead ends: 45 [2020-10-13 12:56:07,903 INFO L226 Difference]: Without dead ends: 41 [2020-10-13 12:56:07,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=947, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 12:56:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-13 12:56:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2020-10-13 12:56:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 12:56:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-10-13 12:56:07,911 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 65 [2020-10-13 12:56:07,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:07,912 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-10-13 12:56:07,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 12:56:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-10-13 12:56:07,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:56:07,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:07,913 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:07,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:56:07,913 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:07,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1872336740, now seen corresponding path program 7 times [2020-10-13 12:56:07,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:07,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254628639] [2020-10-13 12:56:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:07,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 12:56:08,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-13 12:56:08,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 12:56:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 12:56:08,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:08,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:08,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:56:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:08,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 12:56:08,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:08,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 12:56:08,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:08,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:08,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:56:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:08,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:08,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 12:56:08,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:08,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:08,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:56:08,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:08,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:08,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:08,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:08,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:08,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:08,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:56:08,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:08,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 12:56:09,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254628639] [2020-10-13 12:56:09,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:09,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 12:56:09,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996601062] [2020-10-13 12:56:09,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 12:56:09,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:09,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 12:56:09,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:56:09,006 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 15 states. [2020-10-13 12:56:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:09,326 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2020-10-13 12:56:09,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:56:09,326 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-10-13 12:56:09,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:09,327 INFO L225 Difference]: With dead ends: 45 [2020-10-13 12:56:09,328 INFO L226 Difference]: Without dead ends: 41 [2020-10-13 12:56:09,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2020-10-13 12:56:09,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-13 12:56:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2020-10-13 12:56:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 12:56:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-10-13 12:56:09,343 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 51 [2020-10-13 12:56:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:09,343 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-10-13 12:56:09,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 12:56:09,344 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-10-13 12:56:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 12:56:09,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:09,345 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:09,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:56:09,345 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:09,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:09,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1850137581, now seen corresponding path program 8 times [2020-10-13 12:56:09,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:09,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218786651] [2020-10-13 12:56:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 12:56:10,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-13 12:56:10,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 12:56:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:10,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 12:56:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:10,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:56:10,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:10,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:10,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:10,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 12:56:10,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:10,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:10,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 12:56:10,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:10,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:10,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:10,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:10,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:56:10,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:10,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:10,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:10,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:10,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:10,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:10,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 12:56:10,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:10,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:10,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:10,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:11,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:11,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:11,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:11,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 12:56:11,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:11,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:11,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:11,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:11,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:11,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:11,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:11,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:11,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:11,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 12:56:11,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:11,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:11,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:11,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:11,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:11,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:11,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:11,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:11,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 12:56:11,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:11,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:11,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:11,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:11,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:11,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:11,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:11,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:56:11,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:11,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:11,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:11,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:11,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:11,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:11,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 12:56:11,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 25 proven. 129 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-13 12:56:12,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218786651] [2020-10-13 12:56:12,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:12,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 12:56:12,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835455553] [2020-10-13 12:56:12,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 12:56:12,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 12:56:12,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2020-10-13 12:56:12,006 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 26 states. [2020-10-13 12:56:13,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:13,108 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2020-10-13 12:56:13,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:56:13,109 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 72 [2020-10-13 12:56:13,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:13,110 INFO L225 Difference]: With dead ends: 48 [2020-10-13 12:56:13,110 INFO L226 Difference]: Without dead ends: 44 [2020-10-13 12:56:13,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 13 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=144, Invalid=1338, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 12:56:13,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-13 12:56:13,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-13 12:56:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-13 12:56:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-10-13 12:56:13,128 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 52 transitions. Word has length 72 [2020-10-13 12:56:13,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:13,129 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-10-13 12:56:13,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 12:56:13,129 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2020-10-13 12:56:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:56:13,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:13,130 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:13,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 12:56:13,130 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:13,131 INFO L82 PathProgramCache]: Analyzing trace with hash -746065050, now seen corresponding path program 9 times [2020-10-13 12:56:13,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:13,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969163662] [2020-10-13 12:56:13,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 12:56:13,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-13 12:56:13,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 12:56:13,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:13,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 12:56:13,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:13,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:13,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:13,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:13,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:13,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:13,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:13,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 12:56:13,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:13,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:13,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 12:56:13,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:13,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:13,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:13,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:13,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 12:56:13,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:13,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:13,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:13,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:13,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:13,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:13,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:13,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:13,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:14,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:14,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:14,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:14,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:56:14,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:14,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:14,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:14,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:14,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:14,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:14,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:14,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:14,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:14,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:14,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:14,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 51 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-13 12:56:14,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969163662] [2020-10-13 12:56:14,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:14,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 12:56:14,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289145255] [2020-10-13 12:56:14,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 12:56:14,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:14,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 12:56:14,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-13 12:56:14,151 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. Second operand 20 states. [2020-10-13 12:56:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:14,464 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2020-10-13 12:56:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:56:14,464 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2020-10-13 12:56:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:14,466 INFO L225 Difference]: With dead ends: 44 [2020-10-13 12:56:14,466 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 12:56:14,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:56:14,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 12:56:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-13 12:56:14,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-13 12:56:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-10-13 12:56:14,490 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 51 [2020-10-13 12:56:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:14,490 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-10-13 12:56:14,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 12:56:14,491 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-10-13 12:56:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 12:56:14,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:14,494 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:14,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 12:56:14,494 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:14,494 INFO L82 PathProgramCache]: Analyzing trace with hash 912513436, now seen corresponding path program 10 times [2020-10-13 12:56:14,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:14,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588096675] [2020-10-13 12:56:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:14,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:56:15,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-13 12:56:15,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 12:56:15,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 12:56:15,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:15,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:56:15,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 12:56:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:15,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:15,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 12:56:15,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:15,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:15,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:56:15,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:56:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:15,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-13 12:56:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:15,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 12:56:15,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:15,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:15,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:15,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:15,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:15,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:15,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:15,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:56:15,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:15,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:15,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:15,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:16,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:16,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:16,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:16,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:16,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:56:16,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 34 proven. 81 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-10-13 12:56:16,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588096675] [2020-10-13 12:56:16,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:16,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 12:56:16,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632652140] [2020-10-13 12:56:16,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 12:56:16,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:16,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 12:56:16,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-13 12:56:16,093 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 20 states. [2020-10-13 12:56:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:16,549 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2020-10-13 12:56:16,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:56:16,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 65 [2020-10-13 12:56:16,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:16,551 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:56:16,551 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 12:56:16,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:56:16,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 12:56:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-13 12:56:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 12:56:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2020-10-13 12:56:16,560 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 65 [2020-10-13 12:56:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:16,560 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2020-10-13 12:56:16,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 12:56:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2020-10-13 12:56:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:56:16,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:16,562 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:16,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 12:56:16,562 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:16,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:16,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1255254341, now seen corresponding path program 11 times [2020-10-13 12:56:16,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:16,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380966597] [2020-10-13 12:56:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:16,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:16,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:16,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:16,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:56:16,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:17,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:17,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:17,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:17,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:17,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 12:56:17,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:17,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:56:17,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:17,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:56:17,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:17,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:56:17,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:17,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:56:17,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:17,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:56:17,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:17,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:17,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:17,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:17,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:17,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:56:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 8 proven. 86 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-13 12:56:17,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380966597] [2020-10-13 12:56:17,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:17,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 12:56:17,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187432495] [2020-10-13 12:56:17,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 12:56:17,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:17,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 12:56:17,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2020-10-13 12:56:17,808 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand 21 states. [2020-10-13 12:56:18,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:18,351 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-10-13 12:56:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:56:18,351 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 58 [2020-10-13 12:56:18,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:18,353 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:56:18,353 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 12:56:18,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=767, Unknown=0, NotChecked=0, Total=870 [2020-10-13 12:56:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 12:56:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-13 12:56:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 12:56:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-10-13 12:56:18,363 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 58 [2020-10-13 12:56:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:18,363 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-10-13 12:56:18,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 12:56:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-10-13 12:56:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:56:18,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:18,364 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:18,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 12:56:18,364 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:18,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2039564078, now seen corresponding path program 12 times [2020-10-13 12:56:18,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:18,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546843247] [2020-10-13 12:56:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:18,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:56:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 874 [2020-10-13 12:56:19,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 12:56:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:19,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:56:19,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:19,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:19,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:19,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:19,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:19,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:19,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 12:56:19,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:19,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:19,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 12:56:19,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:19,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:19,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:19,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:19,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:19,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:56:19,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:19,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:19,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:19,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:19,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:19,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:19,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:19,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:19,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:56:19,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:19,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:20,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:20,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-13 12:56:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:20,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:20,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:20,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-13 12:56:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:20,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:20,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:20,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:20,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:20,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:20,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 12:56:20,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:20,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:20,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:20,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:20,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:20,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:20,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:20,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:56:20,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:20,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:20,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:20,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:20,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:20,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:20,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:20,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:56:20,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:20,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:20,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:20,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:20,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:21,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:21,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:21,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:21,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:21,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:21,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:21,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:21,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 30 proven. 184 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-13 12:56:21,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546843247] [2020-10-13 12:56:21,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:21,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 12:56:21,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143250520] [2020-10-13 12:56:21,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 12:56:21,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 12:56:21,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=752, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:56:21,096 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 29 states. [2020-10-13 12:56:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:22,284 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-10-13 12:56:22,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:56:22,284 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2020-10-13 12:56:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:22,285 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:56:22,285 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 12:56:22,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=173, Invalid=1549, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 12:56:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 12:56:22,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-13 12:56:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 12:56:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2020-10-13 12:56:22,298 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 79 [2020-10-13 12:56:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:22,298 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2020-10-13 12:56:22,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 12:56:22,298 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2020-10-13 12:56:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 12:56:22,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:22,299 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:22,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 12:56:22,299 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1677321585, now seen corresponding path program 13 times [2020-10-13 12:56:22,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:22,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345117929] [2020-10-13 12:56:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:22,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 12:56:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:22,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 12:56:22,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:23,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:23,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:23,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:23,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:23,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:56:23,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:23,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:56:23,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:23,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:23,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:56:23,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:23,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 12:56:23,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:23,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:23,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 12:56:23,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:23,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:23,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:23,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:56:23,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:23,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:23,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:24,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:24,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:24,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:56:24,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:24,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:24,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:24,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:24,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:24,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:56:24,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:24,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 24 proven. 130 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-13 12:56:24,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345117929] [2020-10-13 12:56:24,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:24,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 12:56:24,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686543019] [2020-10-13 12:56:24,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 12:56:24,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:24,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 12:56:24,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=597, Unknown=0, NotChecked=0, Total=650 [2020-10-13 12:56:24,185 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand 26 states. [2020-10-13 12:56:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:25,134 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2020-10-13 12:56:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:56:25,135 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 72 [2020-10-13 12:56:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:25,136 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:56:25,137 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 12:56:25,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=1201, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 12:56:25,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 12:56:25,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-10-13 12:56:25,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-13 12:56:25,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-10-13 12:56:25,155 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 72 [2020-10-13 12:56:25,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:25,156 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-10-13 12:56:25,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 12:56:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-10-13 12:56:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:56:25,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:25,157 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:25,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 12:56:25,157 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:25,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1806425208, now seen corresponding path program 14 times [2020-10-13 12:56:25,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:25,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003269932] [2020-10-13 12:56:25,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:25,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:25,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:56:25,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-13 12:56:25,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:25,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 12:56:25,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:25,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:56:25,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:25,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:25,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:25,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:25,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:25,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:25,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:25,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:25,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:25,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 12:56:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:25,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:26,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:26,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:56:26,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:26,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:26,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:26,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:26,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:26,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:26,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:26,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:26,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:26,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:26,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:26,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-13 12:56:26,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:26,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:26,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:26,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:26,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:26,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:26,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:26,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 12:56:26,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:26,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:26,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:26,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:26,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:26,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:26,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:26,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:26,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:27,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:27,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:27,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:27,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:56:27,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:27,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:27,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:27,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:27,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 12:56:27,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:27,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:27,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:27,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:27,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:27,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:27,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:27,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:27,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:27,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:27,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:27,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:27,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:56:27,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 20 proven. 209 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-13 12:56:27,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003269932] [2020-10-13 12:56:27,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:27,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 12:56:27,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026685276] [2020-10-13 12:56:27,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 12:56:27,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:27,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 12:56:27,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=863, Unknown=0, NotChecked=0, Total=930 [2020-10-13 12:56:27,702 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 31 states. [2020-10-13 12:56:29,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:29,055 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-10-13 12:56:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:56:29,055 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 79 [2020-10-13 12:56:29,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:29,057 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:29,057 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:29,058 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=222, Invalid=1848, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 12:56:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-13 12:56:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:56:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-13 12:56:29,064 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 79 [2020-10-13 12:56:29,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:29,064 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-13 12:56:29,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 12:56:29,064 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-10-13 12:56:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:56:29,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:29,065 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:29,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 12:56:29,066 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:29,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:29,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1615348441, now seen corresponding path program 15 times [2020-10-13 12:56:29,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:29,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560086939] [2020-10-13 12:56:29,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:56:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:56:29,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:29,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:29,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:29,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:29,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:29,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:29,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:29,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:29,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:29,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:29,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:29,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:29,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:29,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:30,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:30,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:30,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:30,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:30,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:30,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:30,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:30,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 12:56:30,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:30,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:30,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:30,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:30,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:30,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:30,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:31,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:31,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:31,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:31,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 12:56:31,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:31,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:31,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:31,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:31,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:31,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:31,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:31,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:31,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:56:31,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:31,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:31,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:31,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:31,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:31,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:31,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:56:31,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:31,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:31,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:31,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:31,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:31,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:31,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:56:31,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:31,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:31,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 248 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-13 12:56:31,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560086939] [2020-10-13 12:56:31,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:31,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 12:56:31,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395381689] [2020-10-13 12:56:31,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 12:56:31,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:31,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 12:56:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2020-10-13 12:56:31,887 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 31 states. [2020-10-13 12:56:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:33,368 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2020-10-13 12:56:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:56:33,369 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 86 [2020-10-13 12:56:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:33,370 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:33,370 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:33,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 15 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=197, Invalid=1873, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 12:56:33,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-10-13 12:56:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-13 12:56:33,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2020-10-13 12:56:33,379 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 86 [2020-10-13 12:56:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:33,379 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2020-10-13 12:56:33,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 12:56:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-10-13 12:56:33,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:56:33,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:33,380 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:33,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 12:56:33,381 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:33,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1937884195, now seen corresponding path program 16 times [2020-10-13 12:56:33,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:33,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805258820] [2020-10-13 12:56:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:33,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:56:33,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:33,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:33,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:33,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:33,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:33,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:34,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 12:56:34,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:34,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:34,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:34,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 12:56:34,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:34,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:34,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:34,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:34,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:34,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:56:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:34,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:34,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:34,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:34,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:34,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:34,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:35,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:35,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:35,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:35,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:35,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:35,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:35,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:35,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:35,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:35,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:35,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:35,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:56:35,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:35,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:35,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:35,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:35,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:35,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:35,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:35,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:35,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:56:35,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:35,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:35,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:35,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:35,563 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 13 proven. 169 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-10-13 12:56:35,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805258820] [2020-10-13 12:56:35,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:35,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 12:56:35,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651449462] [2020-10-13 12:56:35,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 12:56:35,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:35,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 12:56:35,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:56:35,568 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand 28 states. [2020-10-13 12:56:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:36,740 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2020-10-13 12:56:36,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:56:36,741 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 86 [2020-10-13 12:56:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:36,742 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:36,742 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:36,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 12:56:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-13 12:56:36,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:56:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-10-13 12:56:36,751 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 86 [2020-10-13 12:56:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:36,752 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-10-13 12:56:36,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 12:56:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-10-13 12:56:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 12:56:36,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:36,753 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:36,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 12:56:36,754 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:36,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:36,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1830896665, now seen corresponding path program 17 times [2020-10-13 12:56:36,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:36,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500028927] [2020-10-13 12:56:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:36,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 12:56:37,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:37,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 12:56:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:37,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:37,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:37,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 12:56:37,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:37,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:37,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:56:37,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:37,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:37,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:37,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:56:37,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:37,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-13 12:56:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:37,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:37,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:37,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:37,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:56:37,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:37,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:38,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:38,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:38,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:38,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:38,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 19 proven. 135 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-13 12:56:38,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500028927] [2020-10-13 12:56:38,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:38,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 12:56:38,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561877041] [2020-10-13 12:56:38,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 12:56:38,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:38,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 12:56:38,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2020-10-13 12:56:38,123 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 26 states. [2020-10-13 12:56:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:39,064 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2020-10-13 12:56:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:56:39,065 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 72 [2020-10-13 12:56:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:39,067 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:39,067 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:39,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 12:56:39,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-13 12:56:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:56:39,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2020-10-13 12:56:39,074 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 72 [2020-10-13 12:56:39,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:39,074 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2020-10-13 12:56:39,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 12:56:39,074 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2020-10-13 12:56:39,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 12:56:39,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:39,076 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:39,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 12:56:39,076 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:39,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:39,076 INFO L82 PathProgramCache]: Analyzing trace with hash -335786642, now seen corresponding path program 18 times [2020-10-13 12:56:39,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:39,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548741358] [2020-10-13 12:56:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:39,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:39,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 12:56:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:39,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:39,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:39,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:39,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:39,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:39,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:39,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:39,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:39,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:39,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:39,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:39,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:39,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:39,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:40,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:56:40,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:40,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:40,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:40,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:40,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:56:40,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:40,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:40,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:40,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:40,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:40,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:40,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:40,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:40,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:41,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:41,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:41,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:41,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:41,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:41,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:41,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:41,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:41,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:41,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:41,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 25 proven. 238 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-13 12:56:41,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548741358] [2020-10-13 12:56:41,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:41,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 12:56:41,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314989897] [2020-10-13 12:56:41,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 12:56:41,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:41,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 12:56:41,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2020-10-13 12:56:41,528 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand 30 states. [2020-10-13 12:56:43,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:43,112 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2020-10-13 12:56:43,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:56:43,113 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 93 [2020-10-13 12:56:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:43,115 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:43,115 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:43,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=153, Invalid=1827, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 12:56:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-13 12:56:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:56:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2020-10-13 12:56:43,122 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 93 [2020-10-13 12:56:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:43,123 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2020-10-13 12:56:43,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 12:56:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2020-10-13 12:56:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:56:43,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:43,125 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:43,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 12:56:43,125 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:43,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1524702692, now seen corresponding path program 19 times [2020-10-13 12:56:43,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:43,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440109942] [2020-10-13 12:56:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:43,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 12:56:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:56:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:44,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:44,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:44,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:56:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:44,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:44,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:44,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:44,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:44,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:56:44,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:44,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:56:44,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:44,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:44,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:56:44,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:44,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:44,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:44,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:44,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:56:44,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:44,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:45,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:45,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:45,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:45,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:45,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:45,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:56:45,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 9 proven. 184 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-13 12:56:45,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440109942] [2020-10-13 12:56:45,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:45,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 12:56:45,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252098344] [2020-10-13 12:56:45,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 12:56:45,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:45,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 12:56:45,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2020-10-13 12:56:45,081 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. Second operand 23 states. [2020-10-13 12:56:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:45,819 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-10-13 12:56:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:56:45,819 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-10-13 12:56:45,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:45,821 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:45,821 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:45,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 12:56:45,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:45,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2020-10-13 12:56:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:56:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-13 12:56:45,827 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 79 [2020-10-13 12:56:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:45,828 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-13 12:56:45,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 12:56:45,828 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-10-13 12:56:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 12:56:45,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:45,829 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:45,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 12:56:45,830 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:45,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1394734426, now seen corresponding path program 20 times [2020-10-13 12:56:45,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:45,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934267818] [2020-10-13 12:56:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:45,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 12:56:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 12:56:46,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:46,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:46,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:46,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:56:46,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:46,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:46,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:46,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:46,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:46,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:56:46,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:46,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:46,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:56:46,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:46,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:46,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:46,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:46,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:46,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:46,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:46,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 2 proven. 106 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-13 12:56:46,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934267818] [2020-10-13 12:56:46,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:46,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 12:56:46,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301813647] [2020-10-13 12:56:46,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 12:56:46,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:46,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 12:56:46,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-13 12:56:46,937 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 22 states. [2020-10-13 12:56:47,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:47,676 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2020-10-13 12:56:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:56:47,677 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 65 [2020-10-13 12:56:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:47,678 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:56:47,678 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:56:47,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 12:56:47,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:56:47,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-10-13 12:56:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-13 12:56:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2020-10-13 12:56:47,685 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 65 [2020-10-13 12:56:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:47,685 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2020-10-13 12:56:47,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 12:56:47,686 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2020-10-13 12:56:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:56:47,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:47,687 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:47,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 12:56:47,687 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:47,687 INFO L82 PathProgramCache]: Analyzing trace with hash -180332919, now seen corresponding path program 21 times [2020-10-13 12:56:47,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:47,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870075663] [2020-10-13 12:56:47,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:47,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:56:48,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:48,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:56:48,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:56:48,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:56:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:56:48,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 12:56:48,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:56:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:56:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:48,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:48,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:48,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:48,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:49,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:49,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:49,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:49,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:49,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:56:49,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:49,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:49,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:49,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:56:49,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:49,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:49,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:56:49,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:49,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:49,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:49,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:49,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:49,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:56:49,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:49,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:49,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:50,059 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 42 proven. 185 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-13 12:56:50,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870075663] [2020-10-13 12:56:50,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:50,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 12:56:50,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592417753] [2020-10-13 12:56:50,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 12:56:50,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:50,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 12:56:50,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=809, Unknown=0, NotChecked=0, Total=870 [2020-10-13 12:56:50,061 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand 30 states. [2020-10-13 12:56:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:51,535 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2020-10-13 12:56:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:56:51,536 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 86 [2020-10-13 12:56:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:51,538 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:56:51,538 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:56:51,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=179, Invalid=1983, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 12:56:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:56:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:56:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:56:51,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-13 12:56:51,545 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 86 [2020-10-13 12:56:51,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:51,546 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-13 12:56:51,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 12:56:51,546 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-13 12:56:51,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 12:56:51,547 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:51,547 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:51,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 12:56:51,548 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:51,548 INFO L82 PathProgramCache]: Analyzing trace with hash -313052920, now seen corresponding path program 22 times [2020-10-13 12:56:51,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:51,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687231687] [2020-10-13 12:56:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:51,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 12:56:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:52,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:52,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:52,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:52,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:52,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:56:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:52,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:56:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:52,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:52,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:53,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:53,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 12:56:53,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:53,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:53,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:53,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:53,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:53,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:53,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:53,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:53,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:53,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:53,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:53,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:53,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:53,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:53,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:53,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:53,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:53,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:53,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:53,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:54,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:54,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:54,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:54,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:54,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:56:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:54,151 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 22 proven. 244 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-13 12:56:54,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687231687] [2020-10-13 12:56:54,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:54,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 12:56:54,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102414678] [2020-10-13 12:56:54,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 12:56:54,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:54,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 12:56:54,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=868, Unknown=0, NotChecked=0, Total=930 [2020-10-13 12:56:54,153 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 31 states. [2020-10-13 12:56:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:56:55,730 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-10-13 12:56:55,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:56:55,731 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 93 [2020-10-13 12:56:55,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:56:55,732 INFO L225 Difference]: With dead ends: 58 [2020-10-13 12:56:55,733 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 12:56:55,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=181, Invalid=2075, Unknown=0, NotChecked=0, Total=2256 [2020-10-13 12:56:55,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 12:56:55,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2020-10-13 12:56:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:56:55,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-13 12:56:55,740 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 93 [2020-10-13 12:56:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:56:55,740 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-13 12:56:55,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 12:56:55,740 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-13 12:56:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:56:55,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:56:55,742 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:56:55,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 12:56:55,742 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:56:55,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:56:55,742 INFO L82 PathProgramCache]: Analyzing trace with hash -789379885, now seen corresponding path program 23 times [2020-10-13 12:56:55,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:56:55,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100915618] [2020-10-13 12:56:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:56:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 12:56:56,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:56,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:56:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:56,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:56:56,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:56:56,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:56:56,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:56:56,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:56:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:56,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:56,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:56,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:56,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:56,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:56,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:56,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:56,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:56,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:56,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:56,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:56:56,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:57,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:57,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:57,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:57,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:57,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:57,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:57,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:57,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:56:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:57,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:57,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:57,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:56:57,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:57,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:57,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:57,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:57,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:56:57,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:56:57,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:57,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:57,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:57,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:57,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:56:57,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 12:56:57,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:56:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:57,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:56:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:57,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:58,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:56:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 12:56:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:58,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:56:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:56:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:58,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:58,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:58,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:56:58,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:56:58,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:56:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:58,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:56:58,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:58,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:58,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:58,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:56:58,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:58,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 12:56:58,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:58,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:56:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:56:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:56:58,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:58,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:58,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:56:58,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:58,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:56:58,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:56:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:56:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:58,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:56:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:56:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:56:58,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:56:58,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:56:58,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:56:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 24 proven. 258 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-10-13 12:56:58,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100915618] [2020-10-13 12:56:58,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:56:58,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-13 12:56:58,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279400332] [2020-10-13 12:56:58,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-13 12:56:58,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:56:58,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-13 12:56:58,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2020-10-13 12:56:58,612 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 31 states. [2020-10-13 12:57:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:00,343 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-13 12:57:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:57:00,344 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 100 [2020-10-13 12:57:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:00,346 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:00,346 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:00,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=166, Invalid=2090, Unknown=0, NotChecked=0, Total=2256 [2020-10-13 12:57:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-10-13 12:57:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 12:57:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2020-10-13 12:57:00,357 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 100 [2020-10-13 12:57:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:00,357 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2020-10-13 12:57:00,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-13 12:57:00,358 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2020-10-13 12:57:00,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:57:00,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:00,359 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:00,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 12:57:00,359 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:00,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash -505812782, now seen corresponding path program 24 times [2020-10-13 12:57:00,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:00,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720425359] [2020-10-13 12:57:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:00,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:00,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 12:57:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:00,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:57:00,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:00,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:00,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:00,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:00,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:00,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:00,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:00,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:00,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:00,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:00,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:00,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:00,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:00,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:01,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-13 12:57:01,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:01,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 12:57:01,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:01,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:01,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:01,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:01,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:01,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:01,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:01,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:01,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:01,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:01,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:01,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:01,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:01,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:02,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:02,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:02,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:02,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:02,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:02,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:02,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:02,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:02,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:02,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:02,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:02,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:02,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:02,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:02,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 42 proven. 172 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-13 12:57:02,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720425359] [2020-10-13 12:57:02,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:02,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 12:57:02,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878268471] [2020-10-13 12:57:02,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 12:57:02,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:02,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 12:57:02,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=750, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:57:02,274 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand 29 states. [2020-10-13 12:57:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:03,439 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2020-10-13 12:57:03,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:57:03,440 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 79 [2020-10-13 12:57:03,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:03,441 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:03,442 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:03,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 12:57:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:57:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:57:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2020-10-13 12:57:03,455 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 79 [2020-10-13 12:57:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:03,455 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2020-10-13 12:57:03,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 12:57:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2020-10-13 12:57:03,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 12:57:03,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:03,460 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:03,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 12:57:03,460 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:03,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:03,460 INFO L82 PathProgramCache]: Analyzing trace with hash -787811522, now seen corresponding path program 25 times [2020-10-13 12:57:03,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:03,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192228819] [2020-10-13 12:57:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:03,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:04,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 12:57:04,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:04,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:04,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:04,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:04,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:04,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:04,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:04,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:04,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:04,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:04,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:04,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:04,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:04,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:05,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:05,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:05,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:05,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:05,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:05,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:05,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:05,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:05,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:05,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:05,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:06,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:06,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:06,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:06,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:06,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:06,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 12:57:06,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:06,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:06,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:06,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:06,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:06,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:06,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:06,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:06,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:06,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:06,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:06,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:06,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:57:06,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:06,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:06,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:06,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:06,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:06,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:07,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:07,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:07,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:07,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:07,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:07,177 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 71 proven. 288 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2020-10-13 12:57:07,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192228819] [2020-10-13 12:57:07,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:07,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-13 12:57:07,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068089652] [2020-10-13 12:57:07,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-13 12:57:07,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:07,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-13 12:57:07,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1186, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 12:57:07,179 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand 36 states. [2020-10-13 12:57:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:09,219 INFO L93 Difference]: Finished difference Result 56 states and 75 transitions. [2020-10-13 12:57:09,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:57:09,223 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 107 [2020-10-13 12:57:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:09,224 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:09,224 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:09,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=198, Invalid=2558, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 12:57:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:57:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:57:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2020-10-13 12:57:09,231 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 107 [2020-10-13 12:57:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:09,231 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2020-10-13 12:57:09,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-13 12:57:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2020-10-13 12:57:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 12:57:09,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:09,233 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:09,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 12:57:09,233 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1159270008, now seen corresponding path program 26 times [2020-10-13 12:57:09,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:09,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090661207] [2020-10-13 12:57:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:09,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 12:57:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 12:57:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:09,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:09,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:09,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:09,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:09,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:09,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:09,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:09,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:09,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:09,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:09,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:09,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:10,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:10,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 12:57:10,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:10,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:10,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:10,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 12:57:10,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:10,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:10,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:10,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:10,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:10,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 12:57:10,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:10,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:10,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:10,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:10,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:11,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:11,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:11,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 12:57:11,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:11,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:11,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:11,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:11,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:11,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:11,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:11,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:11,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:11,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:11,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:11,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:11,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:11,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:11,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:11,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:11,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:11,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:11,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:11,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:11,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:11,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:11,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:11,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:11,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:11,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 33 proven. 244 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-10-13 12:57:11,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090661207] [2020-10-13 12:57:11,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:11,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 12:57:11,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086808671] [2020-10-13 12:57:11,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 12:57:11,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:11,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 12:57:11,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2020-10-13 12:57:11,496 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand 26 states. [2020-10-13 12:57:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:12,629 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2020-10-13 12:57:12,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:57:12,630 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 93 [2020-10-13 12:57:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:12,631 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:12,631 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:12,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=1325, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 12:57:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:57:12,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:57:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2020-10-13 12:57:12,638 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 93 [2020-10-13 12:57:12,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:12,639 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2020-10-13 12:57:12,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 12:57:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2020-10-13 12:57:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:57:12,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:12,640 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:12,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 12:57:12,640 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1525719705, now seen corresponding path program 27 times [2020-10-13 12:57:12,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:12,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675441181] [2020-10-13 12:57:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:12,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:57:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:13,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:13,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:13,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:57:13,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:13,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:13,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:57:13,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:13,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:13,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:13,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:13,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:14,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 12:57:14,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:14,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:14,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:14,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:14,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:14,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:14,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:14,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:57:14,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:14,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:14,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:14,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:14,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:14,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:14,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:14,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:14,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:14,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:14,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:14,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:14,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:14,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:57:14,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:14,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 8 proven. 171 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-13 12:57:14,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675441181] [2020-10-13 12:57:14,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:14,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 12:57:14,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66519240] [2020-10-13 12:57:14,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 12:57:14,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:14,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 12:57:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=600, Unknown=0, NotChecked=0, Total=650 [2020-10-13 12:57:14,615 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand 26 states. [2020-10-13 12:57:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:15,815 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2020-10-13 12:57:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:57:15,815 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 86 [2020-10-13 12:57:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:15,816 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:15,817 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:15,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 12:57:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:57:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:57:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2020-10-13 12:57:15,825 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 66 transitions. Word has length 86 [2020-10-13 12:57:15,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:15,825 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 66 transitions. [2020-10-13 12:57:15,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 12:57:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 66 transitions. [2020-10-13 12:57:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:57:15,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:15,827 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:15,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 12:57:15,827 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:15,827 INFO L82 PathProgramCache]: Analyzing trace with hash -793317021, now seen corresponding path program 28 times [2020-10-13 12:57:15,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:15,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49719358] [2020-10-13 12:57:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:16,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:16,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 12:57:16,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:16,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:16,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:16,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:16,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:16,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:16,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:16,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:16,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:16,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:16,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:16,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 12:57:16,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:16,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:16,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:16,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:16,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:16,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:16,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:16,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:16,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:17,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:17,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:17,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:17,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:17,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:17,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:17,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:18,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 12:57:18,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:18,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:18,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:18,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 32 proven. 343 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-13 12:57:18,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49719358] [2020-10-13 12:57:18,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:18,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-13 12:57:18,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386409428] [2020-10-13 12:57:18,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-13 12:57:18,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:18,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-13 12:57:18,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1254, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 12:57:18,836 INFO L87 Difference]: Start difference. First operand 48 states and 66 transitions. Second operand 37 states. [2020-10-13 12:57:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:20,585 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2020-10-13 12:57:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:57:20,586 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 100 [2020-10-13 12:57:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:20,588 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:20,588 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:20,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=227, Invalid=2425, Unknown=0, NotChecked=0, Total=2652 [2020-10-13 12:57:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:20,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-13 12:57:20,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 12:57:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-10-13 12:57:20,594 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 100 [2020-10-13 12:57:20,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:20,595 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-10-13 12:57:20,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-13 12:57:20,595 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-10-13 12:57:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 12:57:20,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:20,596 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:20,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 12:57:20,596 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:20,596 INFO L82 PathProgramCache]: Analyzing trace with hash -439702833, now seen corresponding path program 29 times [2020-10-13 12:57:20,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:20,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298043328] [2020-10-13 12:57:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:20,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 12:57:20,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:20,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:20,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:20,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:20,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:21,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:21,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 12:57:21,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:21,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:21,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:21,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:21,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:21,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:21,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:21,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:21,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 14 proven. 147 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-13 12:57:21,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298043328] [2020-10-13 12:57:21,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:21,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 12:57:21,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793865898] [2020-10-13 12:57:21,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 12:57:21,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:21,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 12:57:21,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2020-10-13 12:57:21,982 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 25 states. [2020-10-13 12:57:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:23,040 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-10-13 12:57:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:57:23,041 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 72 [2020-10-13 12:57:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:23,042 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:23,042 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:23,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 12:57:23,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2020-10-13 12:57:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 12:57:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2020-10-13 12:57:23,049 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 72 [2020-10-13 12:57:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:23,049 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2020-10-13 12:57:23,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 12:57:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2020-10-13 12:57:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 12:57:23,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:23,051 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:23,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 12:57:23,051 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:23,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:23,052 INFO L82 PathProgramCache]: Analyzing trace with hash 365189506, now seen corresponding path program 30 times [2020-10-13 12:57:23,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:23,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940874007] [2020-10-13 12:57:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 12:57:23,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:23,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:23,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:23,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:23,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:23,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:57:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:24,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:24,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-13 12:57:24,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:24,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:25,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:25,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:25,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 16 proven. 201 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2020-10-13 12:57:25,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940874007] [2020-10-13 12:57:25,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:25,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 12:57:25,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121408247] [2020-10-13 12:57:25,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 12:57:25,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:25,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 12:57:25,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2020-10-13 12:57:25,818 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand 30 states. [2020-10-13 12:57:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:27,686 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2020-10-13 12:57:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:57:27,687 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 93 [2020-10-13 12:57:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:27,689 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:57:27,689 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:57:27,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=158, Invalid=2194, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 12:57:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:57:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:57:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:57:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-13 12:57:27,696 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 93 [2020-10-13 12:57:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:27,696 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-13 12:57:27,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 12:57:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-13 12:57:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:57:27,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:27,698 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:27,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 12:57:27,698 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:27,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1104773667, now seen corresponding path program 31 times [2020-10-13 12:57:27,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:27,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713088443] [2020-10-13 12:57:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 12:57:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 12:57:28,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:28,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:28,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 12:57:28,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:57:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:28,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:28,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:57:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:28,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:28,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:28,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:57:28,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:28,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:28,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:57:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:29,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:29,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:29,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:29,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:29,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:29,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:29,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:29,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:29,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:30,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:30,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:30,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:30,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:30,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:30,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:30,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:30,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 32 proven. 253 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-10-13 12:57:31,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713088443] [2020-10-13 12:57:31,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:31,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-13 12:57:31,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899852421] [2020-10-13 12:57:31,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-13 12:57:31,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:31,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-13 12:57:31,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=988, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 12:57:31,035 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 33 states. [2020-10-13 12:57:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:33,153 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2020-10-13 12:57:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:57:33,154 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 100 [2020-10-13 12:57:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:33,154 INFO L225 Difference]: With dead ends: 61 [2020-10-13 12:57:33,154 INFO L226 Difference]: Without dead ends: 57 [2020-10-13 12:57:33,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 17 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=201, Invalid=2451, Unknown=0, NotChecked=0, Total=2652 [2020-10-13 12:57:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-13 12:57:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-13 12:57:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:57:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-13 12:57:33,162 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 100 [2020-10-13 12:57:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:33,162 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-13 12:57:33,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-13 12:57:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-13 12:57:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 12:57:33,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:33,164 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:33,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-13 12:57:33,164 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash 560522232, now seen corresponding path program 32 times [2020-10-13 12:57:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:33,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912422417] [2020-10-13 12:57:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:33,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 12:57:34,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 872 [2020-10-13 12:57:34,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-13 12:57:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 12:57:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:34,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:34,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:34,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:34,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 12:57:34,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:57:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:34,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:34,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:34,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:57:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:57:34,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:34,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:35,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:35,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:36,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:36,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:36,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:36,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:36,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:36,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:36,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:36,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:36,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:36,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:36,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:36,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:57:36,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:36,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:36,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:36,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:36,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:36,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 12:57:36,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:36,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:36,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:36,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:36,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:36,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:36,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:36,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 37 proven. 371 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-10-13 12:57:36,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912422417] [2020-10-13 12:57:36,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:36,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-13 12:57:36,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974077017] [2020-10-13 12:57:36,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-13 12:57:36,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:36,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-13 12:57:36,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1256, Unknown=0, NotChecked=0, Total=1332 [2020-10-13 12:57:36,944 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 37 states. [2020-10-13 12:57:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:39,316 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2020-10-13 12:57:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:57:39,317 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 107 [2020-10-13 12:57:39,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:39,318 INFO L225 Difference]: With dead ends: 61 [2020-10-13 12:57:39,318 INFO L226 Difference]: Without dead ends: 57 [2020-10-13 12:57:39,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=245, Invalid=2835, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 12:57:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-13 12:57:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-10-13 12:57:39,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:57:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-13 12:57:39,326 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 107 [2020-10-13 12:57:39,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:39,326 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-13 12:57:39,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-13 12:57:39,326 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-13 12:57:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 12:57:39,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:39,327 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:39,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-13 12:57:39,328 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:39,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:39,328 INFO L82 PathProgramCache]: Analyzing trace with hash -330893523, now seen corresponding path program 33 times [2020-10-13 12:57:39,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:39,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836569763] [2020-10-13 12:57:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:39,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-13 12:57:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 12:57:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:40,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:40,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:40,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:40,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:40,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:40,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:41,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:41,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:41,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:41,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:41,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:41,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:57:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:41,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:41,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:41,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:41,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:41,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:41,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:41,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:41,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:41,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:41,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:41,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:41,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:41,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-13 12:57:41,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:41,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:42,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:42,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:42,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:42,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:42,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:57:42,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:42,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:42,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:43,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:43,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:43,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:43,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:43,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:43,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:43,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:43,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:43,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:43,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:43,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:43,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 21 proven. 353 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2020-10-13 12:57:43,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836569763] [2020-10-13 12:57:43,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:43,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-13 12:57:43,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879301239] [2020-10-13 12:57:43,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-13 12:57:43,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:43,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-13 12:57:43,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1188, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 12:57:43,300 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 36 states. [2020-10-13 12:57:45,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:45,605 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-10-13 12:57:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:57:45,606 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 114 [2020-10-13 12:57:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:45,607 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:57:45,607 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:57:45,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=192, Invalid=2778, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 12:57:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:57:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-10-13 12:57:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 12:57:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-10-13 12:57:45,614 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 114 [2020-10-13 12:57:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:45,615 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-10-13 12:57:45,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-13 12:57:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-10-13 12:57:45,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 12:57:45,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:45,616 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:45,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-13 12:57:45,616 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1343946330, now seen corresponding path program 34 times [2020-10-13 12:57:45,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:45,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746700910] [2020-10-13 12:57:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:45,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 12:57:46,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:46,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:46,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:46,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:46,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:46,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:46,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 12:57:46,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:46,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:46,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:46,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:46,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 12:57:46,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:46,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:46,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:46,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:46,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:46,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:57:46,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:46,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:46,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:47,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:47,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:57:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:47,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:47,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:47,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:47,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:47,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:47,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:48,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:48,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:48,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:48,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:48,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 12:57:48,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:48,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:48,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:48,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:48,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:48,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:48,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:48,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:48,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:48,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:48,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 58 proven. 262 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-13 12:57:48,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746700910] [2020-10-13 12:57:48,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:48,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-13 12:57:48,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246955301] [2020-10-13 12:57:48,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-13 12:57:48,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:48,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-13 12:57:48,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1050, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 12:57:48,325 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 34 states. [2020-10-13 12:57:50,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:50,101 INFO L93 Difference]: Finished difference Result 59 states and 82 transitions. [2020-10-13 12:57:50,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:57:50,102 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 93 [2020-10-13 12:57:50,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:50,104 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:57:50,104 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:57:50,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=218, Invalid=2134, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 12:57:50,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:57:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:57:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:57:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2020-10-13 12:57:50,111 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 75 transitions. Word has length 93 [2020-10-13 12:57:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:50,111 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 75 transitions. [2020-10-13 12:57:50,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-13 12:57:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2020-10-13 12:57:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 12:57:50,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:50,112 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:50,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-13 12:57:50,113 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:50,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:50,113 INFO L82 PathProgramCache]: Analyzing trace with hash 831596388, now seen corresponding path program 35 times [2020-10-13 12:57:50,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:50,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648170118] [2020-10-13 12:57:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 12:57:50,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:51,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 12:57:51,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:57:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:51,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 12:57:51,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:51,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:51,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:52,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:57:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:52,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:52,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 12:57:52,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:52,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:57:52,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:52,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:52,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:52,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:52,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:52,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 13 proven. 268 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2020-10-13 12:57:52,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648170118] [2020-10-13 12:57:52,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:52,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 12:57:52,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137114292] [2020-10-13 12:57:52,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 12:57:52,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 12:57:52,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-13 12:57:52,958 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand 25 states. [2020-10-13 12:57:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:54,253 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2020-10-13 12:57:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:57:54,255 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 107 [2020-10-13 12:57:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:54,256 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:57:54,256 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:57:54,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 32 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 12:57:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:57:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:57:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:57:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-10-13 12:57:54,263 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 107 [2020-10-13 12:57:54,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:54,263 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-10-13 12:57:54,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 12:57:54,264 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-10-13 12:57:54,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 12:57:54,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:54,265 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:54,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-13 12:57:54,265 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:54,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1776686958, now seen corresponding path program 36 times [2020-10-13 12:57:54,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:54,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972684864] [2020-10-13 12:57:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 12:57:55,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-10-13 12:57:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-13 12:57:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:57:55,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-13 12:57:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:55,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:57:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:55,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 12:57:55,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:57:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:55,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:55,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:55,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 12:57:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:55,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:57:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:56,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:56,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:56,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:56,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:56,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:56,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:57:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:57,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:57,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:57,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 12:57:57,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:57,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:57,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:57:57,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:57,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:57,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:57,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:57:57,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:57,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:57,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:57,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:57:57,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:58,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:58,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:58,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:57:58,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:57:58,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:57:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:58,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:58,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:58,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:57:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:58,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:58,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:57:58,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:57:58,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:57:58,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:58,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:57:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:58,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:58,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:58,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:57:58,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:58,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 30 proven. 430 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-13 12:57:58,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972684864] [2020-10-13 12:57:58,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:58,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-13 12:57:58,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021440727] [2020-10-13 12:57:58,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-13 12:57:58,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:58,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-13 12:57:58,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1403, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 12:57:58,913 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 39 states. [2020-10-13 12:58:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:01,624 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-10-13 12:58:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:58:01,626 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 121 [2020-10-13 12:58:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:01,627 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:58:01,627 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:58:01,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 23 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=218, Invalid=3088, Unknown=0, NotChecked=0, Total=3306 [2020-10-13 12:58:01,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:58:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:58:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:58:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2020-10-13 12:58:01,633 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 121 [2020-10-13 12:58:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:01,634 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2020-10-13 12:58:01,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-13 12:58:01,634 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2020-10-13 12:58:01,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:58:01,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:01,635 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:01,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-13 12:58:01,635 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:01,635 INFO L82 PathProgramCache]: Analyzing trace with hash -256846799, now seen corresponding path program 37 times [2020-10-13 12:58:01,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:01,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245977856] [2020-10-13 12:58:01,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:02,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:58:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:02,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:02,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:02,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:02,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:02,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:02,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-13 12:58:02,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:02,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:02,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:58:02,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:03,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:58:03,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:03,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 12:58:03,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:03,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:03,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:58:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:03,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:03,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:03,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 181 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 12:58:03,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245977856] [2020-10-13 12:58:03,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:03,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 12:58:03,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437198762] [2020-10-13 12:58:03,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 12:58:03,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:03,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 12:58:03,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=751, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:58:03,924 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 29 states. [2020-10-13 12:58:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:05,465 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2020-10-13 12:58:05,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:58:05,466 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 86 [2020-10-13 12:58:05,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:05,467 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:58:05,467 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:58:05,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=166, Invalid=1726, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 12:58:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:58:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:58:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:58:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2020-10-13 12:58:05,474 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 86 [2020-10-13 12:58:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:05,474 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2020-10-13 12:58:05,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 12:58:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2020-10-13 12:58:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:58:05,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:05,475 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:05,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-13 12:58:05,475 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:05,475 INFO L82 PathProgramCache]: Analyzing trace with hash -567080281, now seen corresponding path program 38 times [2020-10-13 12:58:05,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:05,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933574904] [2020-10-13 12:58:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:05,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 12:58:06,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:06,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:06,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:06,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:06,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:06,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 12:58:06,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:06,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:06,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:06,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:06,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:06,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:58:06,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:06,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:06,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:07,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:07,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:58:07,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:07,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:58:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:07,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 12:58:07,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:07,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:07,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:58:07,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:07,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:08,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:08,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:08,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:08,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:08,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:08,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,546 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 8 proven. 275 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-10-13 12:58:08,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933574904] [2020-10-13 12:58:08,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:08,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-13 12:58:08,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736885317] [2020-10-13 12:58:08,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-13 12:58:08,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:08,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-13 12:58:08,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=927, Unknown=0, NotChecked=0, Total=992 [2020-10-13 12:58:08,548 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 32 states. [2020-10-13 12:58:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:10,299 INFO L93 Difference]: Finished difference Result 59 states and 78 transitions. [2020-10-13 12:58:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:58:10,299 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 100 [2020-10-13 12:58:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:10,300 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:58:10,300 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:58:10,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 21 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=161, Invalid=2001, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 12:58:10,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:58:10,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:58:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:58:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2020-10-13 12:58:10,306 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 100 [2020-10-13 12:58:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:10,306 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2020-10-13 12:58:10,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-13 12:58:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2020-10-13 12:58:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 12:58:10,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:10,308 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:10,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-13 12:58:10,308 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:10,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:10,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1907807715, now seen corresponding path program 39 times [2020-10-13 12:58:10,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:10,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343828369] [2020-10-13 12:58:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:10,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-13 12:58:11,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:11,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 12:58:11,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:11,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:11,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:11,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:11,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 12:58:11,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:58:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:11,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:11,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:58:11,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:11,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:12,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:12,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:12,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:12,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:58:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:12,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 12:58:12,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:13,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:13,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:13,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:13,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:13,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 12:58:13,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:13,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:13,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:13,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:13,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:13,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:13,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:13,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:13,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:13,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:13,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:58:13,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:13,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:13,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:13,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:13,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:13,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:13,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:13,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:14,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:14,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:14,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:14,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:14,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:14,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:14,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:14,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 52 proven. 387 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-13 12:58:14,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343828369] [2020-10-13 12:58:14,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:14,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-13 12:58:14,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485470159] [2020-10-13 12:58:14,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-13 12:58:14,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:14,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-13 12:58:14,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1398, Unknown=0, NotChecked=0, Total=1482 [2020-10-13 12:58:14,409 INFO L87 Difference]: Start difference. First operand 51 states and 71 transitions. Second operand 39 states. [2020-10-13 12:58:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:16,690 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2020-10-13 12:58:16,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:58:16,691 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 114 [2020-10-13 12:58:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:16,693 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:58:16,693 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:58:16,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=239, Invalid=2841, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 12:58:16,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:58:16,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2020-10-13 12:58:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 12:58:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-10-13 12:58:16,700 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 114 [2020-10-13 12:58:16,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:16,700 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-10-13 12:58:16,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-13 12:58:16,701 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-10-13 12:58:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:58:16,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:16,702 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:16,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-13 12:58:16,702 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:16,702 INFO L82 PathProgramCache]: Analyzing trace with hash 326515792, now seen corresponding path program 40 times [2020-10-13 12:58:16,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:16,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039734772] [2020-10-13 12:58:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:16,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:58:17,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-13 12:58:17,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 12:58:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:17,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:58:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:17,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:17,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-13 12:58:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:58:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:17,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 12:58:17,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:17,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:17,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:17,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:17,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:18,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:18,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:58:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:18,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:18,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 23 proven. 166 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-13 12:58:18,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039734772] [2020-10-13 12:58:18,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:18,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 12:58:18,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914343216] [2020-10-13 12:58:18,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 12:58:18,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:18,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 12:58:18,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=698, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:58:18,666 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 28 states. [2020-10-13 12:58:20,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:20,297 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2020-10-13 12:58:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:58:20,299 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 79 [2020-10-13 12:58:20,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:20,300 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:58:20,301 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:58:20,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=162, Invalid=1644, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 12:58:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:58:20,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-10-13 12:58:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 12:58:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-10-13 12:58:20,308 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 79 [2020-10-13 12:58:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:20,308 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-10-13 12:58:20,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 12:58:20,308 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-10-13 12:58:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:58:20,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:20,309 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:20,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-13 12:58:20,309 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:20,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:20,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1182847487, now seen corresponding path program 41 times [2020-10-13 12:58:20,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:20,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614228889] [2020-10-13 12:58:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:20,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:58:21,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 677 [2020-10-13 12:58:21,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-13 12:58:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-13 12:58:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:21,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:21,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:21,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:58:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:58:21,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:58:21,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:58:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:22,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:22,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 12:58:22,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:22,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 12:58:22,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:22,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 12:58:22,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:22,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:23,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:23,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:23,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:23,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:23,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:23,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:23,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:23,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:23,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:23,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:23,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:23,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:23,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:58:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:23,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:23,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:23,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:23,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:23,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:58:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:23,989 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 45 proven. 289 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-13 12:58:23,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614228889] [2020-10-13 12:58:23,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:23,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-13 12:58:23,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488274571] [2020-10-13 12:58:23,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-13 12:58:23,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:23,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-13 12:58:23,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=1052, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 12:58:23,991 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 34 states. [2020-10-13 12:58:26,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:26,556 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2020-10-13 12:58:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:58:26,558 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 100 [2020-10-13 12:58:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:26,559 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:58:26,559 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:58:26,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 19 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=234, Invalid=2736, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 12:58:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:58:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:58:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:58:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-13 12:58:26,568 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 100 [2020-10-13 12:58:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:26,568 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-13 12:58:26,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-13 12:58:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-13 12:58:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 12:58:26,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:26,569 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:26,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-13 12:58:26,570 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:26,570 INFO L82 PathProgramCache]: Analyzing trace with hash -865344962, now seen corresponding path program 42 times [2020-10-13 12:58:26,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:26,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658183634] [2020-10-13 12:58:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:26,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:27,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1295 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 12:58:27,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:27,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:27,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:27,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:27,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:27,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:27,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:27,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:27,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:28,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:28,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:28,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:28,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:58:28,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:28,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:58:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:28,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:28,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:58:28,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:28,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-13 12:58:28,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:58:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:28,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:28,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:29,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:58:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:29,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:29,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:29,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:29,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-13 12:58:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:29,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:29,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:29,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:29,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:29,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:29,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:29,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:29,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:29,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 12:58:29,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:29,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:30,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:30,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:30,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:30,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:58:30,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:30,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:30,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:30,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:30,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:30,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:30,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:30,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:30,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:30,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 18 proven. 278 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2020-10-13 12:58:30,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658183634] [2020-10-13 12:58:30,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:30,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-13 12:58:30,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341496206] [2020-10-13 12:58:30,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-13 12:58:30,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:30,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-13 12:58:30,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1055, Unknown=0, NotChecked=0, Total=1122 [2020-10-13 12:58:30,968 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 34 states. [2020-10-13 12:58:33,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:33,672 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-13 12:58:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:58:33,674 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 107 [2020-10-13 12:58:33,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:33,675 INFO L225 Difference]: With dead ends: 64 [2020-10-13 12:58:33,676 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 12:58:33,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=177, Invalid=2793, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 12:58:33,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 12:58:33,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-13 12:58:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:58:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-13 12:58:33,683 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 107 [2020-10-13 12:58:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:33,684 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-13 12:58:33,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-13 12:58:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-13 12:58:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 12:58:33,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:33,685 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:33,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-13 12:58:33,686 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash -564676919, now seen corresponding path program 43 times [2020-10-13 12:58:33,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:33,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552406768] [2020-10-13 12:58:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-13 12:58:34,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:34,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 12:58:34,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:34,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:34,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:34,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:34,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:34,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:34,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:34,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:34,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:34,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:34,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:34,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:34,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:34,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:35,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:35,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:35,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:35,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:35,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:35,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:35,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:35,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:35,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:35,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:35,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:35,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:35,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:58:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:35,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:35,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:35,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:58:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:35,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:36,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:36,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:58:36,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:36,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-13 12:58:36,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:36,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:58:36,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:36,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:36,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:36,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:36,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:36,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:36,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 12:58:36,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:36,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:36,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:37,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:37,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:37,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:37,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:37,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-13 12:58:37,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:37,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:37,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:37,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:37,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:37,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:37,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:37,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:37,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:37,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:37,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:37,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:37,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:58:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:38,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:38,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:38,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:38,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:38,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:38,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:38,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:38,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:38,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:38,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:58:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 73 proven. 336 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-13 12:58:38,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552406768] [2020-10-13 12:58:38,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:38,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-13 12:58:38,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648140441] [2020-10-13 12:58:38,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-13 12:58:38,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-13 12:58:38,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 12:58:38,383 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 38 states. [2020-10-13 12:58:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:41,440 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-13 12:58:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:58:41,441 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 114 [2020-10-13 12:58:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:41,442 INFO L225 Difference]: With dead ends: 64 [2020-10-13 12:58:41,443 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 12:58:41,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=226, Invalid=3196, Unknown=0, NotChecked=0, Total=3422 [2020-10-13 12:58:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 12:58:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-13 12:58:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:58:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-13 12:58:41,450 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 114 [2020-10-13 12:58:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:41,450 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-13 12:58:41,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-13 12:58:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-13 12:58:41,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 12:58:41,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:41,452 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:41,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-13 12:58:41,452 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:41,452 INFO L82 PathProgramCache]: Analyzing trace with hash -173240844, now seen corresponding path program 44 times [2020-10-13 12:58:41,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:41,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937702774] [2020-10-13 12:58:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1065 [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-13 12:58:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:42,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-13 12:58:42,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:42,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:42,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:42,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:42,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:42,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:42,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:42,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:42,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:42,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:42,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:42,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:42,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:42,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:43,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:43,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:43,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:43,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:43,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:43,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:43,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:43,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:43,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:43,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:43,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:43,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:43,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:58:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:43,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:43,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:58:43,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:43,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-10-13 12:58:43,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:58:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:43,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:44,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:58:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:44,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:44,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:44,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:45,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:45,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:45,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:45,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:45,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:45,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:45,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:45,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:45,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:45,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:45,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:45,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:45,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:46,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:46,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:46,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:46,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:46,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:46,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:46,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:46,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:46,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:46,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:46,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:46,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:46,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:46,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:46,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:46,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:46,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:46,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 63 proven. 462 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-13 12:58:46,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937702774] [2020-10-13 12:58:46,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:46,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-13 12:58:46,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983159213] [2020-10-13 12:58:46,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-13 12:58:46,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:46,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-13 12:58:46,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1635, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 12:58:46,897 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 42 states. [2020-10-13 12:58:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:50,838 INFO L93 Difference]: Finished difference Result 64 states and 85 transitions. [2020-10-13 12:58:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:58:50,839 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 121 [2020-10-13 12:58:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:50,840 INFO L225 Difference]: With dead ends: 64 [2020-10-13 12:58:50,841 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 12:58:50,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 23 SyntacticMatches, 7 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=277, Invalid=3629, Unknown=0, NotChecked=0, Total=3906 [2020-10-13 12:58:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 12:58:50,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-10-13 12:58:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:58:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2020-10-13 12:58:50,855 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 121 [2020-10-13 12:58:50,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:50,855 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2020-10-13 12:58:50,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-13 12:58:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2020-10-13 12:58:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 12:58:50,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:50,857 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:50,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-13 12:58:50,857 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:50,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:50,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1022743187, now seen corresponding path program 45 times [2020-10-13 12:58:50,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:50,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970047035] [2020-10-13 12:58:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:50,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:52,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 71 [2020-10-13 12:58:52,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:58:52,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 12:58:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:52,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:52,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:52,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:52,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:52,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:52,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:58:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:52,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:52,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:52,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:52,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:52,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:52,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:52,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 12:58:52,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:52,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:52,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:53,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:53,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:53,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:53,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:53,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:53,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:53,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:58:53,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:53,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:53,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:53,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:53,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 12:58:53,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:53,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:53,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:53,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:53,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:53,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:53,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:53,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:53,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:53,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:53,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:58:53,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:53,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:53,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 12:58:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:54,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:54,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:58:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-13 12:58:54,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:58:54,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:54,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:58:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:54,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:55,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:55,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:55,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:55,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:55,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:55,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:58:55,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 12:58:55,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:55,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:58:55,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:55,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:55,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:55,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:55,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:58:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:55,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:55,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:55,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:58:55,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:58:55,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:56,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:56,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:56,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:58:56,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:58:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:56,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:56,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:56,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:56,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:58:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:56,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:56,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:56,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:56,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:58:56,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:58:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:58:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:57,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:57,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:58:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 76 proven. 476 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-10-13 12:58:57,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970047035] [2020-10-13 12:58:57,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:57,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-13 12:58:57,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555900792] [2020-10-13 12:58:57,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-13 12:58:57,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:57,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-13 12:58:57,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1637, Unknown=0, NotChecked=0, Total=1722 [2020-10-13 12:58:57,199 INFO L87 Difference]: Start difference. First operand 54 states and 75 transitions. Second operand 42 states. [2020-10-13 12:59:01,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:01,432 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2020-10-13 12:59:01,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:59:01,434 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 128 [2020-10-13 12:59:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:01,436 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:01,436 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:01,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=257, Invalid=3649, Unknown=0, NotChecked=0, Total=3906 [2020-10-13 12:59:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-10-13 12:59:01,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-13 12:59:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-10-13 12:59:01,444 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 128 [2020-10-13 12:59:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:01,444 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-10-13 12:59:01,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-13 12:59:01,445 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-10-13 12:59:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:59:01,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:01,445 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:01,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-13 12:59:01,446 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1286180007, now seen corresponding path program 46 times [2020-10-13 12:59:01,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:01,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848237407] [2020-10-13 12:59:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:01,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 12:59:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-10-13 12:59:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 12:59:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 12:59:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:02,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:02,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:02,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:02,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:02,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:02,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:02,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:02,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:02,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:02,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:02,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:02,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:02,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:03,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:03,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:03,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:59:03,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:59:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:03,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:59:03,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:03,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:03,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:03,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:03,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:03,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:03,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:04,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:04,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:04,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:04,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-13 12:59:04,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848237407] [2020-10-13 12:59:04,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:59:04,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 12:59:04,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455379794] [2020-10-13 12:59:04,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 12:59:04,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:59:04,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 12:59:04,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=754, Unknown=0, NotChecked=0, Total=812 [2020-10-13 12:59:04,143 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 29 states. [2020-10-13 12:59:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:06,573 INFO L93 Difference]: Finished difference Result 62 states and 88 transitions. [2020-10-13 12:59:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:59:06,574 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 86 [2020-10-13 12:59:06,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:06,575 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:06,575 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:06,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=161, Invalid=1909, Unknown=0, NotChecked=0, Total=2070 [2020-10-13 12:59:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:59:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:59:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 81 transitions. [2020-10-13 12:59:06,582 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 81 transitions. Word has length 86 [2020-10-13 12:59:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:06,583 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 81 transitions. [2020-10-13 12:59:06,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 12:59:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2020-10-13 12:59:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 12:59:06,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:06,584 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:06,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-13 12:59:06,585 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:06,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:06,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1916891532, now seen corresponding path program 47 times [2020-10-13 12:59:06,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:06,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694626984] [2020-10-13 12:59:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:06,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1185 [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-13 12:59:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:07,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-13 12:59:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:07,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:07,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:07,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:07,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:07,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:07,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:07,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:08,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:08,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:08,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:08,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:08,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:08,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 12:59:08,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:08,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:08,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:08,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:08,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:08,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:08,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:08,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 12:59:08,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:08,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:08,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:08,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:08,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:08,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:08,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:08,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:08,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:08,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:08,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:08,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:59:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:08,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:09,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:09,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:09,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:09,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:09,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:59:09,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:09,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:09,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:09,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:09,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:09,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:09,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:09,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:59:09,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:09,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:09,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:09,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:59:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:09,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:09,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:09,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:09,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:09,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:09,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:09,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:09,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-13 12:59:09,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:09,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:10,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:59:10,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:10,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 12:59:10,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:10,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:59:10,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:10,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:10,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:10,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:10,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:10,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:10,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:10,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:10,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:10,920 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 15 proven. 392 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-10-13 12:59:10,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694626984] [2020-10-13 12:59:10,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:59:10,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 12:59:10,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687260850] [2020-10-13 12:59:10,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 12:59:10,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:59:10,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 12:59:10,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=696, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:59:10,922 INFO L87 Difference]: Start difference. First operand 54 states and 81 transitions. Second operand 28 states. [2020-10-13 12:59:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:13,004 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2020-10-13 12:59:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:59:13,006 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 121 [2020-10-13 12:59:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:13,007 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:13,008 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:13,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 32 SyntacticMatches, 12 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=162, Invalid=1818, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 12:59:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:13,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:59:13,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:59:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2020-10-13 12:59:13,014 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 121 [2020-10-13 12:59:13,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:13,014 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2020-10-13 12:59:13,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 12:59:13,014 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2020-10-13 12:59:13,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-13 12:59:13,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:13,015 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:13,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-13 12:59:13,016 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:13,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1339978551, now seen corresponding path program 48 times [2020-10-13 12:59:13,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:13,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126127947] [2020-10-13 12:59:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:13,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:14,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:14,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 12:59:14,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1413 [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 71 [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-13 12:59:14,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:14,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:14,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:14,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:14,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:14,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:14,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:14,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:14,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:14,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:14,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:14,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:14,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:14,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:14,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:15,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:15,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:15,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 12:59:15,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:15,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:15,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:15,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:15,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:15,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:15,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:15,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:15,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:16,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:59:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:16,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:16,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:59:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:16,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:16,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:59:16,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:16,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:17,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:17,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:17,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:17,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:17,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:17,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:17,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:17,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 12:59:17,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:17,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:17,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:17,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:17,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:17,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:17,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:18,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:18,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:18,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:18,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:18,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:18,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:18,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:18,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:18,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:18,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:18,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:18,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:18,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:18,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:18,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:18,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:18,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 37 proven. 514 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2020-10-13 12:59:18,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126127947] [2020-10-13 12:59:18,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:59:18,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-13 12:59:18,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877661038] [2020-10-13 12:59:18,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-13 12:59:18,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:59:18,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-13 12:59:18,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1556, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 12:59:18,942 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand 41 states. [2020-10-13 12:59:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:22,624 INFO L93 Difference]: Finished difference Result 62 states and 86 transitions. [2020-10-13 12:59:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:59:22,626 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 128 [2020-10-13 12:59:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:22,628 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:22,628 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:22,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 23 SyntacticMatches, 12 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=241, Invalid=3299, Unknown=0, NotChecked=0, Total=3540 [2020-10-13 12:59:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:59:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:59:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2020-10-13 12:59:22,633 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 128 [2020-10-13 12:59:22,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:22,633 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2020-10-13 12:59:22,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-13 12:59:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2020-10-13 12:59:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-13 12:59:22,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:22,635 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 13, 13, 13, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:22,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-13 12:59:22,635 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:22,635 INFO L82 PathProgramCache]: Analyzing trace with hash -547887379, now seen corresponding path program 49 times [2020-10-13 12:59:22,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:22,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111772395] [2020-10-13 12:59:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:22,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:23,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 12:59:23,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:23,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:23,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:23,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:23,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:23,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:23,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:23,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:23,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:24,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:24,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:24,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:24,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:24,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:24,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:24,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:24,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:24,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:25,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:25,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:25,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:25,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:25,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:25,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:25,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:25,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:59:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:25,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:25,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:25,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:25,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:25,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:25,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:25,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:25,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 12:59:25,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:26,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:26,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:26,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:26,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:26,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:26,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:26,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:26,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:26,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:26,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:26,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:26,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:26,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 12:59:26,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:26,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:26,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:26,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:26,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:26,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:26,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 42 proven. 367 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2020-10-13 12:59:27,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111772395] [2020-10-13 12:59:27,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:59:27,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-13 12:59:27,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648038071] [2020-10-13 12:59:27,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-13 12:59:27,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:59:27,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-13 12:59:27,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1329, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 12:59:27,164 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand 38 states. [2020-10-13 12:59:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:30,552 INFO L93 Difference]: Finished difference Result 62 states and 85 transitions. [2020-10-13 12:59:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:59:30,554 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 114 [2020-10-13 12:59:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:30,555 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:30,555 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:30,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 24 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=203, Invalid=2767, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 12:59:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:30,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:59:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:59:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 78 transitions. [2020-10-13 12:59:30,562 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 78 transitions. Word has length 114 [2020-10-13 12:59:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:30,562 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 78 transitions. [2020-10-13 12:59:30,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-13 12:59:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2020-10-13 12:59:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 12:59:30,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:30,564 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:30,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-13 12:59:30,564 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:30,564 INFO L82 PathProgramCache]: Analyzing trace with hash -893562198, now seen corresponding path program 50 times [2020-10-13 12:59:30,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:30,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169475561] [2020-10-13 12:59:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:30,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:32,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1604 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-13 12:59:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:32,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:32,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:32,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:32,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:32,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:32,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:32,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:32,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:32,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-13 12:59:32,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:32,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:32,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:32,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:32,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:32,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:32,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:32,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:32,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:33,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:33,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:33,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:33,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:33,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:33,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:33,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:33,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:33,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:33,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:33,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:33,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:33,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:59:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:33,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:34,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:34,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 12:59:34,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:34,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:34,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:59:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:34,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:59:34,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:34,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:34,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:35,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:35,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:35,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:35,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:35,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:35,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:35,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:35,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:35,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:35,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:35,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:36,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:36,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:36,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:36,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:36,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:36,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:36,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:36,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:36,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:36,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:36,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:36,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:59:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:59:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:37,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:37,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:37,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:37,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:59:37,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:37,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:59:37,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:59:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:37,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:59:37,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 25 proven. 510 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2020-10-13 12:59:37,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169475561] [2020-10-13 12:59:37,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:59:37,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-13 12:59:37,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326576803] [2020-10-13 12:59:37,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-13 12:59:37,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:59:37,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-13 12:59:37,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1719, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 12:59:37,292 INFO L87 Difference]: Start difference. First operand 54 states and 78 transitions. Second operand 43 states. [2020-10-13 12:59:41,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:59:41,636 INFO L93 Difference]: Finished difference Result 62 states and 84 transitions. [2020-10-13 12:59:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:59:41,638 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 135 [2020-10-13 12:59:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:59:41,640 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:59:41,640 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:59:41,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 26 SyntacticMatches, 11 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=224, Invalid=3808, Unknown=0, NotChecked=0, Total=4032 [2020-10-13 12:59:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:59:41,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-13 12:59:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 12:59:41,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 77 transitions. [2020-10-13 12:59:41,651 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 77 transitions. Word has length 135 [2020-10-13 12:59:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:59:41,651 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 77 transitions. [2020-10-13 12:59:41,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-13 12:59:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2020-10-13 12:59:41,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 12:59:41,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:59:41,652 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:59:41,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-13 12:59:41,652 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:59:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:59:41,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1612628798, now seen corresponding path program 51 times [2020-10-13 12:59:41,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:59:41,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105521511] [2020-10-13 12:59:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:59:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:41,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:42,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:42,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 12:59:42,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:42,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 889 [2020-10-13 12:59:42,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-13 12:59:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 12:59:42,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 12:59:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:42,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:59:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:42,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:59:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:42,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:59:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:42,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:59:42,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:42,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:42,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:43,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 12:59:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:43,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:43,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:43,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 12:59:43,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 12:59:43,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:43,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:43,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:59:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:43,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:43,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:59:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 12:59:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:59:43,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:59:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:59:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:59:43,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:59:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:59:43,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0