/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/eca-rers2012/Problem14_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:55:13,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:55:13,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:55:13,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:55:13,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:55:13,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:55:13,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:55:13,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:55:13,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:55:13,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:55:13,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:55:13,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:55:13,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:55:13,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:55:13,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:55:13,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:55:13,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:55:13,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:55:13,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:55:13,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:55:13,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:55:13,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:55:13,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:55:13,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:55:13,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:55:13,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:55:13,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:55:13,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:55:13,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:55:13,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:55:13,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:55:13,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:55:13,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:55:13,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:55:13,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:55:13,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:55:13,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:55:13,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:55:13,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:55:13,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:55:13,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:55:13,710 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 08:55:13,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:55:13,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:55:13,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:55:13,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:55:13,746 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:55:13,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:55:13,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:55:13,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:55:13,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:55:13,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:55:13,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:55:13,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:55:13,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:55:13,749 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:55:13,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:55:13,750 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:55:13,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:55:13,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:55:13,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:55:13,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:55:13,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:55:13,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:55:13,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:55:13,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:55:13,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:55:13,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:55:13,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:55:13,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:55:13,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:55:13,753 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 08:55:14,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:55:14,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:55:14,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:55:14,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:55:14,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:55:14,092 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label54.c [2020-10-13 08:55:14,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c22a6af/4116db5790b645428ec2d5ccb72e5939/FLAG0ddd06b49 [2020-10-13 08:55:14,747 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:55:14,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label54.c [2020-10-13 08:55:14,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c22a6af/4116db5790b645428ec2d5ccb72e5939/FLAG0ddd06b49 [2020-10-13 08:55:14,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8c22a6af/4116db5790b645428ec2d5ccb72e5939 [2020-10-13 08:55:14,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:55:15,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:55:15,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:55:15,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:55:15,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:55:15,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:14" (1/1) ... [2020-10-13 08:55:15,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733bd7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15, skipping insertion in model container [2020-10-13 08:55:15,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:14" (1/1) ... [2020-10-13 08:55:15,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:55:15,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:55:15,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:55:15,668 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:55:15,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:55:15,820 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:55:15,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15 WrapperNode [2020-10-13 08:55:15,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:55:15,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:55:15,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:55:15,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:55:15,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (1/1) ... [2020-10-13 08:55:15,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:55:15,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:55:15,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:55:15,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:55:15,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (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 08:55:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:55:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:55:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:55:16,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:55:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:55:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:55:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:55:16,022 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:55:16,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:55:16,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:55:16,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:55:17,395 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:55:17,395 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:55:17,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:17 BoogieIcfgContainer [2020-10-13 08:55:17,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:55:17,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:55:17,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:55:17,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:55:17,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:55:14" (1/3) ... [2020-10-13 08:55:17,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dabb753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:17, skipping insertion in model container [2020-10-13 08:55:17,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:15" (2/3) ... [2020-10-13 08:55:17,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dabb753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:17, skipping insertion in model container [2020-10-13 08:55:17,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:17" (3/3) ... [2020-10-13 08:55:17,412 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label54.c [2020-10-13 08:55:17,423 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:55:17,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:55:17,449 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:55:17,478 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:55:17,478 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:55:17,478 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:55:17,478 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:55:17,478 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:55:17,479 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:55:17,479 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:55:17,479 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:55:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:55:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-13 08:55:17,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:17,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:17,514 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:17,521 INFO L82 PathProgramCache]: Analyzing trace with hash 856083907, now seen corresponding path program 1 times [2020-10-13 08:55:17,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:17,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603743143] [2020-10-13 08:55:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:17,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:17,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:17,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 08:55:17,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:17,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-13 08:55:17,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:55:17,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:55:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:55:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 08:55:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:18,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:18,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:18,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:18,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:55:18,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:55:18,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:18,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603743143] [2020-10-13 08:55:18,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:55:18,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:55:18,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757502173] [2020-10-13 08:55:18,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:55:18,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:18,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:55:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:55:18,094 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:55:19,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:19,847 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:55:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:19,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-13 08:55:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:19,867 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:55:19,868 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:55:19,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:55:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:55:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:55:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:55:19,961 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 12 [2020-10-13 08:55:19,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:19,961 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:55:19,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:55:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:55:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-13 08:55:19,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:19,973 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:19,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:55:19,974 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:19,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1817586675, now seen corresponding path program 1 times [2020-10-13 08:55:19,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:19,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908419521] [2020-10-13 08:55:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:20,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:20,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 08:55:20,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 604 [2020-10-13 08:55:20,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:55:20,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:20,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:20,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:20,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:20,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:20,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:20,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:20,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:20,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:55:20,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:55:20,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:20,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:55:20,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:55:20,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908419521] [2020-10-13 08:55:20,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:20,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:20,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866371625] [2020-10-13 08:55:20,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:20,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:20,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:20,834 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:55:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:22,468 INFO L93 Difference]: Finished difference Result 934 states and 1411 transitions. [2020-10-13 08:55:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:22,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-10-13 08:55:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:22,475 INFO L225 Difference]: With dead ends: 934 [2020-10-13 08:55:22,476 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:55:22,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:55:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:55:22,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:55:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 745 transitions. [2020-10-13 08:55:22,554 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 745 transitions. Word has length 81 [2020-10-13 08:55:22,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:22,555 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 745 transitions. [2020-10-13 08:55:22,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 745 transitions. [2020-10-13 08:55:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-13 08:55:22,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:22,565 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:22,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:55:22,566 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:22,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:22,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1170512583, now seen corresponding path program 1 times [2020-10-13 08:55:22,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:22,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980998424] [2020-10-13 08:55:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:22,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:22,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:23,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:23,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:55:25,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:25,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3188 [2020-10-13 08:55:25,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-13 08:55:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:25,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:25,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:25,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:25,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:25,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:25,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:25,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:25,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:55:25,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:55:25,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:25,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:25,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:55:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:25,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:55:26,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:55:26,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:26,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:55:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:55:26,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980998424] [2020-10-13 08:55:26,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:26,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:26,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051081974] [2020-10-13 08:55:26,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:26,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:26,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:26,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:26,085 INFO L87 Difference]: Start difference. First operand 560 states and 745 transitions. Second operand 5 states. [2020-10-13 08:55:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:27,516 INFO L93 Difference]: Finished difference Result 1302 states and 1799 transitions. [2020-10-13 08:55:27,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:27,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-10-13 08:55:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:27,529 INFO L225 Difference]: With dead ends: 1302 [2020-10-13 08:55:27,529 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:55:27,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:55:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 562. [2020-10-13 08:55:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-13 08:55:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 748 transitions. [2020-10-13 08:55:27,563 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 748 transitions. Word has length 164 [2020-10-13 08:55:27,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:27,566 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 748 transitions. [2020-10-13 08:55:27,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:27,566 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 748 transitions. [2020-10-13 08:55:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 08:55:27,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:27,581 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:27,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:55:27,581 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:27,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1540259985, now seen corresponding path program 1 times [2020-10-13 08:55:27,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:27,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198707448] [2020-10-13 08:55:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:27,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:28,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:29,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:29,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-13 08:55:29,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2160 [2020-10-13 08:55:29,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-10-13 08:55:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:29,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:29,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:29,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:29,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:29,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:29,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:29,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:29,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:29,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:55:29,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:29,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:55:29,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:29,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:29,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:29,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 08:55:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:29,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:30,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:55:30,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:30,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:55:30,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:30,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:55:30,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-13 08:55:30,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198707448] [2020-10-13 08:55:30,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:30,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:30,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135538366] [2020-10-13 08:55:30,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:30,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:30,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:30,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:30,062 INFO L87 Difference]: Start difference. First operand 562 states and 748 transitions. Second operand 5 states. [2020-10-13 08:55:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:31,631 INFO L93 Difference]: Finished difference Result 1676 states and 2262 transitions. [2020-10-13 08:55:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:31,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2020-10-13 08:55:31,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:31,638 INFO L225 Difference]: With dead ends: 1676 [2020-10-13 08:55:31,639 INFO L226 Difference]: Without dead ends: 1120 [2020-10-13 08:55:31,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2020-10-13 08:55:31,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 934. [2020-10-13 08:55:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-13 08:55:31,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1236 transitions. [2020-10-13 08:55:31,680 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1236 transitions. Word has length 176 [2020-10-13 08:55:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:31,681 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1236 transitions. [2020-10-13 08:55:31,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1236 transitions. [2020-10-13 08:55:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 08:55:31,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:31,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:31,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:55:31,685 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:31,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1955124876, now seen corresponding path program 1 times [2020-10-13 08:55:31,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:31,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994399977] [2020-10-13 08:55:31,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:31,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:31,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:32,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:36,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:36,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 08:55:36,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:55:36,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 08:55:36,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-13 08:55:36,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:36,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:36,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:36,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:36,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:36,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:36,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:36,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:36,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:36,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:36,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:36,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:36,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:36,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:36,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:55:36,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:36,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:36,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:36,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:36,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:36,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:36,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:36,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:36,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:55:36,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 08:55:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:55:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:55:37,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994399977] [2020-10-13 08:55:37,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:37,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:37,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273726016] [2020-10-13 08:55:37,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:37,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:37,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:37,016 INFO L87 Difference]: Start difference. First operand 934 states and 1236 transitions. Second operand 5 states. [2020-10-13 08:55:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:38,683 INFO L93 Difference]: Finished difference Result 2234 states and 3052 transitions. [2020-10-13 08:55:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:38,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 197 [2020-10-13 08:55:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:38,693 INFO L225 Difference]: With dead ends: 2234 [2020-10-13 08:55:38,693 INFO L226 Difference]: Without dead ends: 1306 [2020-10-13 08:55:38,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2020-10-13 08:55:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1302. [2020-10-13 08:55:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1302 states. [2020-10-13 08:55:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1721 transitions. [2020-10-13 08:55:38,732 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1721 transitions. Word has length 197 [2020-10-13 08:55:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:38,733 INFO L479 AbstractCegarLoop]: Abstraction has 1302 states and 1721 transitions. [2020-10-13 08:55:38,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1721 transitions. [2020-10-13 08:55:38,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-13 08:55:38,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:38,739 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:38,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:55:38,739 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:38,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1919678903, now seen corresponding path program 1 times [2020-10-13 08:55:38,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:38,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490108815] [2020-10-13 08:55:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:38,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:38,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:41,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:43,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:43,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-13 08:55:43,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:55:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 08:55:43,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-13 08:55:43,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:43,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:43,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:43,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:43,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:43,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:43,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:43,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:43,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:43,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:43,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:43,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:43,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:43,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:43,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:43,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:43,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:55:43,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:43,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:43,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:43,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:43,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:43,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:43,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:43,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:43,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:55:43,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:43,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:43,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:43,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:44,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:44,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:44,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:44,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:55:44,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:44,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 08:55:44,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:44,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:44,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:55:44,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-10-13 08:55:44,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490108815] [2020-10-13 08:55:44,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:44,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:55:44,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427244490] [2020-10-13 08:55:44,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:55:44,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:44,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:55:44,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:55:44,230 INFO L87 Difference]: Start difference. First operand 1302 states and 1721 transitions. Second operand 5 states. [2020-10-13 08:55:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:46,273 INFO L93 Difference]: Finished difference Result 3710 states and 4958 transitions. [2020-10-13 08:55:46,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:55:46,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2020-10-13 08:55:46,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:46,293 INFO L225 Difference]: With dead ends: 3710 [2020-10-13 08:55:46,293 INFO L226 Difference]: Without dead ends: 2414 [2020-10-13 08:55:46,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2020-10-13 08:55:46,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2228. [2020-10-13 08:55:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-10-13 08:55:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2848 transitions. [2020-10-13 08:55:46,360 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2848 transitions. Word has length 283 [2020-10-13 08:55:46,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:46,361 INFO L479 AbstractCegarLoop]: Abstraction has 2228 states and 2848 transitions. [2020-10-13 08:55:46,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:55:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2848 transitions. [2020-10-13 08:55:46,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-13 08:55:46,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:46,368 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:46,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:55:46,369 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:46,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:46,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1363399141, now seen corresponding path program 1 times [2020-10-13 08:55:46,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:46,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580452661] [2020-10-13 08:55:46,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:46,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:50,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:50,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-10-13 08:55:51,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 08:55:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 08:55:51,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:55:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 293 [2020-10-13 08:55:51,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:55:51,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:51,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:55:51,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:51,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:55:51,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:51,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:55:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:55:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-13 08:55:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:51,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:51,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:51,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:55:51,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:51,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-13 08:55:51,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:51,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:55:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:51,912 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2020-10-13 08:55:51,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580452661] [2020-10-13 08:55:51,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:51,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:55:51,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212294188] [2020-10-13 08:55:51,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:55:51,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:51,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:55:51,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:55:51,915 INFO L87 Difference]: Start difference. First operand 2228 states and 2848 transitions. Second operand 6 states. [2020-10-13 08:55:54,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:55:54,289 INFO L93 Difference]: Finished difference Result 6116 states and 8077 transitions. [2020-10-13 08:55:54,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:55:54,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 291 [2020-10-13 08:55:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:55:54,314 INFO L225 Difference]: With dead ends: 6116 [2020-10-13 08:55:54,315 INFO L226 Difference]: Without dead ends: 3894 [2020-10-13 08:55:54,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:55:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2020-10-13 08:55:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3154. [2020-10-13 08:55:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3154 states. [2020-10-13 08:55:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4166 transitions. [2020-10-13 08:55:54,433 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4166 transitions. Word has length 291 [2020-10-13 08:55:54,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:55:54,434 INFO L479 AbstractCegarLoop]: Abstraction has 3154 states and 4166 transitions. [2020-10-13 08:55:54,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:55:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4166 transitions. [2020-10-13 08:55:54,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-13 08:55:54,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:55:54,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:55:54,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:55:54,445 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:55:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:55:54,445 INFO L82 PathProgramCache]: Analyzing trace with hash 758361955, now seen corresponding path program 1 times [2020-10-13 08:55:54,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:55:54,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229678071] [2020-10-13 08:55:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:55:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:54,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:54,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3306 [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:57,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:57,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:55:57,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:55:57,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:55:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:57,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:57,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:57,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:55:57,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:57,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:55:57,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:57,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:55:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:57,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:57,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:57,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:55:57,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:55:57,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:55:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:55:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:55:57,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:55:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:55:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:58,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:58,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:55:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:55:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-13 08:55:58,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:55:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:55:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:55:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:58,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-13 08:55:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:55:58,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:55:58,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:55:58,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:55:58,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:55:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:55:58,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:55:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:55:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:55:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:55:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:55:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 89 proven. 111 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-13 08:55:59,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229678071] [2020-10-13 08:55:59,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:55:59,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:55:59,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92341341] [2020-10-13 08:55:59,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:55:59,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:55:59,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:55:59,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:55:59,068 INFO L87 Difference]: Start difference. First operand 3154 states and 4166 transitions. Second operand 10 states. [2020-10-13 08:56:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:02,038 INFO L93 Difference]: Finished difference Result 6670 states and 8798 transitions. [2020-10-13 08:56:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 08:56:02,039 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 341 [2020-10-13 08:56:02,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:02,056 INFO L225 Difference]: With dead ends: 6670 [2020-10-13 08:56:02,057 INFO L226 Difference]: Without dead ends: 3438 [2020-10-13 08:56:02,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-13 08:56:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2020-10-13 08:56:02,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3156. [2020-10-13 08:56:02,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3156 states. [2020-10-13 08:56:02,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 3665 transitions. [2020-10-13 08:56:02,186 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 3665 transitions. Word has length 341 [2020-10-13 08:56:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:02,187 INFO L479 AbstractCegarLoop]: Abstraction has 3156 states and 3665 transitions. [2020-10-13 08:56:02,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:56:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 3665 transitions. [2020-10-13 08:56:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2020-10-13 08:56:02,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:02,206 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:02,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:56:02,206 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:02,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1088104970, now seen corresponding path program 1 times [2020-10-13 08:56:02,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:02,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312804458] [2020-10-13 08:56:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:02,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:02,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:05,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 508 [2020-10-13 08:56:07,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 08:56:07,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:56:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-13 08:56:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:07,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:07,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:07,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:07,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:07,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:56:07,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:07,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:07,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:07,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:56:07,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:07,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 08:56:07,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:07,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-13 08:56:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-10-13 08:56:07,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312804458] [2020-10-13 08:56:07,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:07,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:56:07,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92714822] [2020-10-13 08:56:07,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:56:07,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:56:07,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:56:07,926 INFO L87 Difference]: Start difference. First operand 3156 states and 3665 transitions. Second operand 7 states. [2020-10-13 08:56:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:10,048 INFO L93 Difference]: Finished difference Result 7710 states and 9385 transitions. [2020-10-13 08:56:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:10,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 494 [2020-10-13 08:56:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:10,075 INFO L225 Difference]: With dead ends: 7710 [2020-10-13 08:56:10,075 INFO L226 Difference]: Without dead ends: 4182 [2020-10-13 08:56:10,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:56:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2020-10-13 08:56:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4180. [2020-10-13 08:56:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4180 states. [2020-10-13 08:56:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4180 states to 4180 states and 5080 transitions. [2020-10-13 08:56:10,224 INFO L78 Accepts]: Start accepts. Automaton has 4180 states and 5080 transitions. Word has length 494 [2020-10-13 08:56:10,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:10,225 INFO L479 AbstractCegarLoop]: Abstraction has 4180 states and 5080 transitions. [2020-10-13 08:56:10,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:56:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4180 states and 5080 transitions. [2020-10-13 08:56:10,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2020-10-13 08:56:10,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:10,251 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:10,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:56:10,251 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:10,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:10,252 INFO L82 PathProgramCache]: Analyzing trace with hash 296251056, now seen corresponding path program 1 times [2020-10-13 08:56:10,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:10,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693677588] [2020-10-13 08:56:10,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:10,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:10,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 589 [2020-10-13 08:56:15,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:15,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-13 08:56:15,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:56:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:15,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-13 08:56:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:56:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-13 08:56:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:56:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2020-10-13 08:56:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:15,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:56:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:15,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:15,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:15,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:15,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 20 proven. 367 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-10-13 08:56:16,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693677588] [2020-10-13 08:56:16,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:16,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:16,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056302363] [2020-10-13 08:56:16,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:16,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:16,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:16,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:16,066 INFO L87 Difference]: Start difference. First operand 4180 states and 5080 transitions. Second operand 8 states. [2020-10-13 08:56:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:18,165 INFO L93 Difference]: Finished difference Result 8270 states and 9797 transitions. [2020-10-13 08:56:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 08:56:18,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 573 [2020-10-13 08:56:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:18,182 INFO L225 Difference]: With dead ends: 8270 [2020-10-13 08:56:18,183 INFO L226 Difference]: Without dead ends: 4100 [2020-10-13 08:56:18,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-13 08:56:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2020-10-13 08:56:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 3912. [2020-10-13 08:56:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2020-10-13 08:56:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 4401 transitions. [2020-10-13 08:56:18,289 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 4401 transitions. Word has length 573 [2020-10-13 08:56:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:18,290 INFO L479 AbstractCegarLoop]: Abstraction has 3912 states and 4401 transitions. [2020-10-13 08:56:18,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 4401 transitions. [2020-10-13 08:56:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-13 08:56:18,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:18,303 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:18,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:56:18,303 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:18,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1681681452, now seen corresponding path program 1 times [2020-10-13 08:56:18,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:18,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902366208] [2020-10-13 08:56:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:18,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:19,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 607 [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:56:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-13 08:56:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-13 08:56:23,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:23,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:23,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:23,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 08:56:23,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 08:56:23,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-13 08:56:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:23,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:23,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:24,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:24,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:24,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-13 08:56:24,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:56:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:24,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:56:24,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:24,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2020-10-13 08:56:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:24,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:24,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:24,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:56:24,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:24,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-13 08:56:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:24,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:24,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:24,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:56:24,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:56:24,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:24,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:56:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 202 proven. 219 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-13 08:56:24,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902366208] [2020-10-13 08:56:24,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:24,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:56:24,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532140801] [2020-10-13 08:56:24,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:56:24,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:24,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:56:24,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:56:24,617 INFO L87 Difference]: Start difference. First operand 3912 states and 4401 transitions. Second operand 8 states. [2020-10-13 08:56:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:26,314 INFO L93 Difference]: Finished difference Result 8028 states and 9047 transitions. [2020-10-13 08:56:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:56:26,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 591 [2020-10-13 08:56:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:26,341 INFO L225 Difference]: With dead ends: 8028 [2020-10-13 08:56:26,341 INFO L226 Difference]: Without dead ends: 4122 [2020-10-13 08:56:26,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:56:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2020-10-13 08:56:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 4100. [2020-10-13 08:56:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-13 08:56:26,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 4583 transitions. [2020-10-13 08:56:26,439 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 4583 transitions. Word has length 591 [2020-10-13 08:56:26,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:26,440 INFO L479 AbstractCegarLoop]: Abstraction has 4100 states and 4583 transitions. [2020-10-13 08:56:26,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:56:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 4583 transitions. [2020-10-13 08:56:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-10-13 08:56:26,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:26,452 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:26,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:56:26,453 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:26,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:26,453 INFO L82 PathProgramCache]: Analyzing trace with hash 260836387, now seen corresponding path program 1 times [2020-10-13 08:56:26,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:26,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087980262] [2020-10-13 08:56:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:26,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:26,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 685 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:56:31,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:31,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:31,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:31,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:56:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:31,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:32,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:32,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 08:56:32,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:32,619 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-13 08:56:32,843 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-13 08:56:33,080 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2020-10-13 08:56:33,321 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2020-10-13 08:56:33,574 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2020-10-13 08:56:33,823 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-10-13 08:56:34,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-13 08:56:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:34,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:34,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:34,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2020-10-13 08:56:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:56:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:34,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2020-10-13 08:56:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:34,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:34,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:34,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:34,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2020-10-13 08:56:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:34,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:56:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 25 proven. 456 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2020-10-13 08:56:36,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087980262] [2020-10-13 08:56:36,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:36,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:56:36,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192043502] [2020-10-13 08:56:36,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:56:36,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:36,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:56:36,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:56:36,521 INFO L87 Difference]: Start difference. First operand 4100 states and 4583 transitions. Second operand 13 states. [2020-10-13 08:56:36,823 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-10-13 08:56:37,447 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-13 08:56:37,843 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2020-10-13 08:56:38,195 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-13 08:56:38,622 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-10-13 08:56:38,952 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-10-13 08:56:39,303 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 62 [2020-10-13 08:56:39,591 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2020-10-13 08:56:39,875 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2020-10-13 08:56:40,119 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-10-13 08:56:40,420 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2020-10-13 08:56:40,658 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2020-10-13 08:56:40,948 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 79 [2020-10-13 08:56:41,255 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2020-10-13 08:56:41,812 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2020-10-13 08:56:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:41,928 INFO L93 Difference]: Finished difference Result 8379 states and 9361 transitions. [2020-10-13 08:56:41,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:56:41,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 667 [2020-10-13 08:56:41,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:41,952 INFO L225 Difference]: With dead ends: 8379 [2020-10-13 08:56:41,953 INFO L226 Difference]: Without dead ends: 4211 [2020-10-13 08:56:41,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:56:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2020-10-13 08:56:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 4207. [2020-10-13 08:56:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4207 states. [2020-10-13 08:56:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4207 states to 4207 states and 4691 transitions. [2020-10-13 08:56:42,032 INFO L78 Accepts]: Start accepts. Automaton has 4207 states and 4691 transitions. Word has length 667 [2020-10-13 08:56:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:42,033 INFO L479 AbstractCegarLoop]: Abstraction has 4207 states and 4691 transitions. [2020-10-13 08:56:42,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:56:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4207 states and 4691 transitions. [2020-10-13 08:56:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2020-10-13 08:56:42,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:42,046 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:42,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:56:42,047 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:42,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1482645904, now seen corresponding path program 1 times [2020-10-13 08:56:42,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:42,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462040824] [2020-10-13 08:56:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:43,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 797 [2020-10-13 08:56:47,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:56:47,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 08:56:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:56:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 120 [2020-10-13 08:56:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:56:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:56:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:56:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:56:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:56:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-13 08:56:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:47,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:56:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:56:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 08:56:47,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,110 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-13 08:56:48,248 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2020-10-13 08:56:48,371 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-10-13 08:56:48,505 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-13 08:56:48,648 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-10-13 08:56:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-10-13 08:56:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:48,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:48,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:56:48,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:56:48,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 08:56:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:48,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:48,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2020-10-13 08:56:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:49,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:49,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-10-13 08:56:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:56:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:56:49,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:56:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:49,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 629 [2020-10-13 08:56:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:49,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:49,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:56:49,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:56:49,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:56:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:56:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 153 proven. 466 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2020-10-13 08:56:50,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462040824] [2020-10-13 08:56:50,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:56:50,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:56:50,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829574322] [2020-10-13 08:56:50,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:56:50,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:56:50,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:56:50,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:56:50,566 INFO L87 Difference]: Start difference. First operand 4207 states and 4691 transitions. Second operand 13 states. [2020-10-13 08:56:51,574 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-10-13 08:56:51,763 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-10-13 08:56:52,069 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2020-10-13 08:56:52,378 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2020-10-13 08:56:52,508 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-13 08:56:53,429 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-10-13 08:56:53,582 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-10-13 08:56:53,842 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2020-10-13 08:56:54,157 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2020-10-13 08:56:54,469 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2020-10-13 08:56:54,773 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 62 [2020-10-13 08:56:55,047 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-10-13 08:56:55,293 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-10-13 08:56:55,578 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 77 [2020-10-13 08:56:55,904 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2020-10-13 08:56:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:56:56,516 INFO L93 Difference]: Finished difference Result 8483 states and 9456 transitions. [2020-10-13 08:56:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:56:56,517 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 777 [2020-10-13 08:56:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:56:56,528 INFO L225 Difference]: With dead ends: 8483 [2020-10-13 08:56:56,528 INFO L226 Difference]: Without dead ends: 4314 [2020-10-13 08:56:56,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:56:56,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4314 states. [2020-10-13 08:56:56,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4314 to 4314. [2020-10-13 08:56:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4314 states. [2020-10-13 08:56:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 4799 transitions. [2020-10-13 08:56:56,611 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 4799 transitions. Word has length 777 [2020-10-13 08:56:56,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:56:56,611 INFO L479 AbstractCegarLoop]: Abstraction has 4314 states and 4799 transitions. [2020-10-13 08:56:56,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:56:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 4799 transitions. [2020-10-13 08:56:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2020-10-13 08:56:56,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:56:56,625 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:56:56,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:56:56,626 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:56:56,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:56:56,626 INFO L82 PathProgramCache]: Analyzing trace with hash -78862020, now seen corresponding path program 1 times [2020-10-13 08:56:56,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:56:56,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285257600] [2020-10-13 08:56:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:56:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:56:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:57,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:56:57,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 908 [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:01,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-13 08:57:01,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:57:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:01,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:01,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:01,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:01,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:01,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:57:01,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:01,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:01,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:01,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:01,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:01,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:01,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:01,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:01,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:02,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:57:02,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:02,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 08:57:02,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:02,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:02,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:02,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:02,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:02,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-13 08:57:02,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 08:57:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:03,218 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2020-10-13 08:57:03,528 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2020-10-13 08:57:03,903 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2020-10-13 08:57:04,216 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 82 [2020-10-13 08:57:04,541 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 85 [2020-10-13 08:57:04,885 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2020-10-13 08:57:05,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-13 08:57:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:05,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:05,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-13 08:57:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-13 08:57:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:57:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:05,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:05,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 738 [2020-10-13 08:57:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:05,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:05,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:57:05,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:05,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 285 proven. 466 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-13 08:57:08,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285257600] [2020-10-13 08:57:08,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:08,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:57:08,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557648138] [2020-10-13 08:57:08,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:57:08,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:08,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:57:08,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:08,384 INFO L87 Difference]: Start difference. First operand 4314 states and 4799 transitions. Second operand 13 states. [2020-10-13 08:57:09,920 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2020-10-13 08:57:10,175 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2020-10-13 08:57:10,829 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 119 [2020-10-13 08:57:11,180 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 67 [2020-10-13 08:57:11,443 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2020-10-13 08:57:12,777 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 57 [2020-10-13 08:57:13,060 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 62 [2020-10-13 08:57:13,507 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2020-10-13 08:57:13,993 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2020-10-13 08:57:14,372 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 72 [2020-10-13 08:57:14,900 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 75 [2020-10-13 08:57:15,402 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2020-10-13 08:57:15,849 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 86 [2020-10-13 08:57:16,477 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 96 [2020-10-13 08:57:17,259 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 111 [2020-10-13 08:57:18,618 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 109 [2020-10-13 08:57:18,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:18,848 INFO L93 Difference]: Finished difference Result 8515 states and 9484 transitions. [2020-10-13 08:57:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 08:57:18,852 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 886 [2020-10-13 08:57:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:18,862 INFO L225 Difference]: With dead ends: 8515 [2020-10-13 08:57:18,863 INFO L226 Difference]: Without dead ends: 4247 [2020-10-13 08:57:18,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2020-10-13 08:57:18,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2020-10-13 08:57:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4247. [2020-10-13 08:57:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4247 states. [2020-10-13 08:57:18,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 4725 transitions. [2020-10-13 08:57:18,943 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 4725 transitions. Word has length 886 [2020-10-13 08:57:18,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:18,944 INFO L479 AbstractCegarLoop]: Abstraction has 4247 states and 4725 transitions. [2020-10-13 08:57:18,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:57:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 4725 transitions. [2020-10-13 08:57:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2020-10-13 08:57:18,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:18,959 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:18,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:57:18,959 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:18,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1900158515, now seen corresponding path program 1 times [2020-10-13 08:57:18,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:18,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480808318] [2020-10-13 08:57:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:19,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:19,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:21,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:21,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 931 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2797 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-13 08:57:21,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:22,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:57:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:22,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:22,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:22,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:22,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:22,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:57:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-13 08:57:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-13 08:57:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:22,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:22,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:23,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:23,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-13 08:57:23,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:23,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-13 08:57:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:23,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:23,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:23,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2020-10-13 08:57:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:23,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:23,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:23,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:23,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:23,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:57:23,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:57:23,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 565 proven. 219 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2020-10-13 08:57:23,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480808318] [2020-10-13 08:57:23,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:23,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:57:23,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353076849] [2020-10-13 08:57:23,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:57:23,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:23,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:57:23,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:57:23,696 INFO L87 Difference]: Start difference. First operand 4247 states and 4725 transitions. Second operand 8 states. [2020-10-13 08:57:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:25,867 INFO L93 Difference]: Finished difference Result 8575 states and 9548 transitions. [2020-10-13 08:57:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:57:25,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 909 [2020-10-13 08:57:25,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:25,885 INFO L225 Difference]: With dead ends: 8575 [2020-10-13 08:57:25,885 INFO L226 Difference]: Without dead ends: 4441 [2020-10-13 08:57:25,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:57:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2020-10-13 08:57:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4431. [2020-10-13 08:57:25,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4431 states. [2020-10-13 08:57:25,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 4912 transitions. [2020-10-13 08:57:25,983 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 4912 transitions. Word has length 909 [2020-10-13 08:57:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:25,984 INFO L479 AbstractCegarLoop]: Abstraction has 4431 states and 4912 transitions. [2020-10-13 08:57:25,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:57:25,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 4912 transitions. [2020-10-13 08:57:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2020-10-13 08:57:26,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:26,002 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:26,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:57:26,003 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 817071744, now seen corresponding path program 1 times [2020-10-13 08:57:26,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:26,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34828129] [2020-10-13 08:57:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:26,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:27,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1027 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-13 08:57:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:31,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:31,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:31,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:31,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:31,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:57:31,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:31,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:31,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:31,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:31,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 08:57:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:31,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:31,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:31,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-13 08:57:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:32,467 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-13 08:57:32,659 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2020-10-13 08:57:32,846 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-13 08:57:33,046 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-13 08:57:33,264 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-10-13 08:57:33,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-13 08:57:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:33,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:33,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:33,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:33,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-13 08:57:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:33,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:33,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:33,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:33,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-13 08:57:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:33,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:33,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:33,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:33,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-13 08:57:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:33,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:33,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:33,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:33,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 425 proven. 466 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2020-10-13 08:57:35,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34828129] [2020-10-13 08:57:35,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:35,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 08:57:35,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818834282] [2020-10-13 08:57:35,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 08:57:35,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:35,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 08:57:35,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:57:35,887 INFO L87 Difference]: Start difference. First operand 4431 states and 4912 transitions. Second operand 13 states. [2020-10-13 08:57:36,478 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-13 08:57:36,857 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2020-10-13 08:57:37,588 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2020-10-13 08:57:38,145 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2020-10-13 08:57:38,467 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-13 08:57:38,673 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-10-13 08:57:38,930 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2020-10-13 08:57:39,173 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2020-10-13 08:57:39,485 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-10-13 08:57:39,717 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-13 08:57:39,895 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2020-10-13 08:57:40,108 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-13 08:57:40,354 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2020-10-13 08:57:40,675 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-10-13 08:57:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:41,002 INFO L93 Difference]: Finished difference Result 8753 states and 9722 transitions. [2020-10-13 08:57:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 08:57:41,004 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1003 [2020-10-13 08:57:41,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:41,014 INFO L225 Difference]: With dead ends: 8753 [2020-10-13 08:57:41,015 INFO L226 Difference]: Without dead ends: 4385 [2020-10-13 08:57:41,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-10-13 08:57:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2020-10-13 08:57:41,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 4303. [2020-10-13 08:57:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4303 states. [2020-10-13 08:57:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 4764 transitions. [2020-10-13 08:57:41,106 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 4764 transitions. Word has length 1003 [2020-10-13 08:57:41,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:41,108 INFO L479 AbstractCegarLoop]: Abstraction has 4303 states and 4764 transitions. [2020-10-13 08:57:41,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 08:57:41,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 4764 transitions. [2020-10-13 08:57:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2020-10-13 08:57:41,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:41,127 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:41,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:57:41,128 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1068596940, now seen corresponding path program 1 times [2020-10-13 08:57:41,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:41,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620925682] [2020-10-13 08:57:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:42,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1110 [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4089 [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:57:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-13 08:57:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-13 08:57:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:45,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:45,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:57:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:57:45,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:57:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:57:45,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:57:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:57:45,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:57:45,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 08:57:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:45,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:57:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:45,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:45,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:45,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:45,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-13 08:57:45,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:57:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:45,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-13 08:57:45,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:46,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:57:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:46,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:46,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:46,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:57:46,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:57:46,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:46,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:57:46,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:46,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-13 08:57:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:46,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:46,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:46,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 1289 proven. 221 refuted. 0 times theorem prover too weak. 1983 trivial. 0 not checked. [2020-10-13 08:57:46,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620925682] [2020-10-13 08:57:46,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:46,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 08:57:46,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376107774] [2020-10-13 08:57:46,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 08:57:46,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:46,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 08:57:46,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:57:46,790 INFO L87 Difference]: Start difference. First operand 4303 states and 4764 transitions. Second operand 10 states. [2020-10-13 08:57:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:49,647 INFO L93 Difference]: Finished difference Result 10715 states and 12058 transitions. [2020-10-13 08:57:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 08:57:49,650 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1084 [2020-10-13 08:57:49,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:49,672 INFO L225 Difference]: With dead ends: 10715 [2020-10-13 08:57:49,672 INFO L226 Difference]: Without dead ends: 6525 [2020-10-13 08:57:49,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-13 08:57:49,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2020-10-13 08:57:49,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 6147. [2020-10-13 08:57:49,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6147 states. [2020-10-13 08:57:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6147 states to 6147 states and 6956 transitions. [2020-10-13 08:57:49,798 INFO L78 Accepts]: Start accepts. Automaton has 6147 states and 6956 transitions. Word has length 1084 [2020-10-13 08:57:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:49,799 INFO L479 AbstractCegarLoop]: Abstraction has 6147 states and 6956 transitions. [2020-10-13 08:57:49,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 08:57:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6147 states and 6956 transitions. [2020-10-13 08:57:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1236 [2020-10-13 08:57:49,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:49,822 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:49,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:57:49,823 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:49,823 INFO L82 PathProgramCache]: Analyzing trace with hash -832000520, now seen corresponding path program 1 times [2020-10-13 08:57:49,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:49,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755430982] [2020-10-13 08:57:49,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:50,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:50,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1263 [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3319 [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:53,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-13 08:57:53,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:57:53,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:53,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:53,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:57:53,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:57:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:57:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:57:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:57:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:53,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:53,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:57:53,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:57:53,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:53,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:57:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:53,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:57:54,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-13 08:57:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:54,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:54,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:57:54,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:54,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4652 backedges. 917 proven. 111 refuted. 0 times theorem prover too weak. 3624 trivial. 0 not checked. [2020-10-13 08:57:55,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755430982] [2020-10-13 08:57:55,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:57:55,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:57:55,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666917041] [2020-10-13 08:57:55,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:57:55,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:57:55,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:57:55,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:57:55,021 INFO L87 Difference]: Start difference. First operand 6147 states and 6956 transitions. Second operand 7 states. [2020-10-13 08:57:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:57:56,647 INFO L93 Difference]: Finished difference Result 12369 states and 14011 transitions. [2020-10-13 08:57:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:57:56,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1235 [2020-10-13 08:57:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:57:56,661 INFO L225 Difference]: With dead ends: 12369 [2020-10-13 08:57:56,662 INFO L226 Difference]: Without dead ends: 6335 [2020-10-13 08:57:56,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:57:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2020-10-13 08:57:56,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 6149. [2020-10-13 08:57:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6149 states. [2020-10-13 08:57:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6149 states to 6149 states and 6947 transitions. [2020-10-13 08:57:56,774 INFO L78 Accepts]: Start accepts. Automaton has 6149 states and 6947 transitions. Word has length 1235 [2020-10-13 08:57:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:57:56,776 INFO L479 AbstractCegarLoop]: Abstraction has 6149 states and 6947 transitions. [2020-10-13 08:57:56,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:57:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6149 states and 6947 transitions. [2020-10-13 08:57:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1557 [2020-10-13 08:57:56,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:57:56,816 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:57:56,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:57:56,816 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:57:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:57:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1908497385, now seen corresponding path program 1 times [2020-10-13 08:57:56,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:57:56,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882263934] [2020-10-13 08:57:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:57:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:57,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:58,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1588 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2240 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:57:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:57:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:57:59,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:57:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:57:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:57:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:57:59,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:57:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:57:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:57:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:57:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:57:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:57:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:57:59,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:57:59,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:57:59,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:57:59,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:57:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:57:59,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:00,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:00,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:00,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:00,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:00,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:00,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:58:00,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:00,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-13 08:58:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:00,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:00,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:00,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-13 08:58:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 7161 backedges. 1371 proven. 2 refuted. 0 times theorem prover too weak. 5788 trivial. 0 not checked. [2020-10-13 08:58:01,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882263934] [2020-10-13 08:58:01,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:01,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:01,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555747536] [2020-10-13 08:58:01,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:01,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:01,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:01,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:01,440 INFO L87 Difference]: Start difference. First operand 6149 states and 6947 transitions. Second operand 7 states. [2020-10-13 08:58:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:02,699 INFO L93 Difference]: Finished difference Result 12071 states and 13666 transitions. [2020-10-13 08:58:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:02,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1556 [2020-10-13 08:58:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:02,716 INFO L225 Difference]: With dead ends: 12071 [2020-10-13 08:58:02,716 INFO L226 Difference]: Without dead ends: 6003 [2020-10-13 08:58:02,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:58:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2020-10-13 08:58:02,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 5961. [2020-10-13 08:58:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5961 states. [2020-10-13 08:58:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 6684 transitions. [2020-10-13 08:58:02,822 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 6684 transitions. Word has length 1556 [2020-10-13 08:58:02,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:02,824 INFO L479 AbstractCegarLoop]: Abstraction has 5961 states and 6684 transitions. [2020-10-13 08:58:02,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 6684 transitions. [2020-10-13 08:58:02,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1558 [2020-10-13 08:58:02,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:02,853 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:02,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:58:02,854 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:02,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:02,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1063317646, now seen corresponding path program 1 times [2020-10-13 08:58:02,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:02,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591968205] [2020-10-13 08:58:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:03,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:03,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1589 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3405 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1317 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-13 08:58:06,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:06,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:58:06,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:06,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:06,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:58:06,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:06,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:06,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:06,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:06,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:58:06,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:06,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:06,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:06,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:06,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:06,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:07,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:07,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:07,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:07,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:58:07,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:07,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:07,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:07,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:07,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 08:58:07,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-13 08:58:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:07,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:07,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:07,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:07,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:07,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:07,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:07,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1409 [2020-10-13 08:58:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:07,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:07,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:07,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:07,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:58:07,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 7168 backedges. 1163 proven. 111 refuted. 0 times theorem prover too weak. 5894 trivial. 0 not checked. [2020-10-13 08:58:08,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591968205] [2020-10-13 08:58:08,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:08,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:08,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934774072] [2020-10-13 08:58:08,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:08,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:08,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:08,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:08,489 INFO L87 Difference]: Start difference. First operand 5961 states and 6684 transitions. Second operand 7 states. [2020-10-13 08:58:10,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:10,076 INFO L93 Difference]: Finished difference Result 12363 states and 13890 transitions. [2020-10-13 08:58:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:58:10,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1557 [2020-10-13 08:58:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:10,087 INFO L225 Difference]: With dead ends: 12363 [2020-10-13 08:58:10,088 INFO L226 Difference]: Without dead ends: 6329 [2020-10-13 08:58:10,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:58:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2020-10-13 08:58:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 6143. [2020-10-13 08:58:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6143 states. [2020-10-13 08:58:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 6834 transitions. [2020-10-13 08:58:10,175 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 6834 transitions. Word has length 1557 [2020-10-13 08:58:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:10,176 INFO L479 AbstractCegarLoop]: Abstraction has 6143 states and 6834 transitions. [2020-10-13 08:58:10,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 6834 transitions. [2020-10-13 08:58:10,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1638 [2020-10-13 08:58:10,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:10,203 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:10,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:58:10,204 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:10,204 INFO L82 PathProgramCache]: Analyzing trace with hash 419815905, now seen corresponding path program 1 times [2020-10-13 08:58:10,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:10,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675325424] [2020-10-13 08:58:10,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:10,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:12,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1671 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1399 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 08:58:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:15,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:58:15,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:15,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:15,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:15,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:16,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:16,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:16,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:16,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:58:16,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:16,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:58:16,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:58:16,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:58:16,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1377 [2020-10-13 08:58:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:16,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:16,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-13 08:58:16,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1489 [2020-10-13 08:58:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:16,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:16,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:16,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8129 backedges. 1254 proven. 111 refuted. 0 times theorem prover too weak. 6764 trivial. 0 not checked. [2020-10-13 08:58:18,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675325424] [2020-10-13 08:58:18,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:18,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:58:18,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279128198] [2020-10-13 08:58:18,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:58:18,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:18,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:58:18,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:58:18,320 INFO L87 Difference]: Start difference. First operand 6143 states and 6834 transitions. Second operand 6 states. [2020-10-13 08:58:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:19,449 INFO L93 Difference]: Finished difference Result 12202 states and 13589 transitions. [2020-10-13 08:58:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:58:19,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1637 [2020-10-13 08:58:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:19,459 INFO L225 Difference]: With dead ends: 12202 [2020-10-13 08:58:19,459 INFO L226 Difference]: Without dead ends: 6139 [2020-10-13 08:58:19,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:58:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-10-13 08:58:19,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 5957. [2020-10-13 08:58:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5957 states. [2020-10-13 08:58:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5957 states to 5957 states and 6625 transitions. [2020-10-13 08:58:19,536 INFO L78 Accepts]: Start accepts. Automaton has 5957 states and 6625 transitions. Word has length 1637 [2020-10-13 08:58:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:19,537 INFO L479 AbstractCegarLoop]: Abstraction has 5957 states and 6625 transitions. [2020-10-13 08:58:19,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:58:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5957 states and 6625 transitions. [2020-10-13 08:58:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1638 [2020-10-13 08:58:19,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:19,556 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:19,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:58:19,557 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:19,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:19,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1297454503, now seen corresponding path program 1 times [2020-10-13 08:58:19,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:19,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903618869] [2020-10-13 08:58:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:19,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:20,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1671 [2020-10-13 08:58:24,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:58:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4788 [2020-10-13 08:58:24,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-13 08:58:24,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:58:24,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:24,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:24,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:24,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:24,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:24,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:24,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:58:24,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:24,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:25,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:25,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:25,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:58:25,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:25,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:58:25,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:25,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:25,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:58:25,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 08:58:25,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-13 08:58:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:58:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:58:25,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:58:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1489 [2020-10-13 08:58:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:25,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:25,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:25,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8125 backedges. 992 proven. 78 refuted. 0 times theorem prover too weak. 7055 trivial. 0 not checked. [2020-10-13 08:58:26,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903618869] [2020-10-13 08:58:26,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:26,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:26,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651885286] [2020-10-13 08:58:26,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:26,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:26,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:26,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:26,598 INFO L87 Difference]: Start difference. First operand 5957 states and 6625 transitions. Second operand 7 states. [2020-10-13 08:58:28,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:28,089 INFO L93 Difference]: Finished difference Result 12727 states and 14227 transitions. [2020-10-13 08:58:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:28,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1637 [2020-10-13 08:58:28,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:28,106 INFO L225 Difference]: With dead ends: 12727 [2020-10-13 08:58:28,106 INFO L226 Difference]: Without dead ends: 6883 [2020-10-13 08:58:28,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:58:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6883 states. [2020-10-13 08:58:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6883 to 6509. [2020-10-13 08:58:28,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6509 states. [2020-10-13 08:58:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 7274 transitions. [2020-10-13 08:58:28,191 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 7274 transitions. Word has length 1637 [2020-10-13 08:58:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:28,192 INFO L479 AbstractCegarLoop]: Abstraction has 6509 states and 7274 transitions. [2020-10-13 08:58:28,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 7274 transitions. [2020-10-13 08:58:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2020-10-13 08:58:28,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:28,212 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:28,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:58:28,213 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:28,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1873409874, now seen corresponding path program 1 times [2020-10-13 08:58:28,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:28,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25931244] [2020-10-13 08:58:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:28,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:29,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1744 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2190 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1472 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:58:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:30,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:30,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:30,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:30,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:30,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:30,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:30,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:30,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:30,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:58:30,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:30,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:30,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:30,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:30,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:30,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:30,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:30,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:58:31,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-13 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:31,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:58:31,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:31,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:58:31,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:31,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:58:31,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:58:31,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1450 [2020-10-13 08:58:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:31,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:31,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1562 [2020-10-13 08:58:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:31,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:31,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:33,205 INFO L134 CoverageAnalysis]: Checked inductivity of 8639 backedges. 1286 proven. 111 refuted. 0 times theorem prover too weak. 7242 trivial. 0 not checked. [2020-10-13 08:58:33,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25931244] [2020-10-13 08:58:33,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:33,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:33,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411220150] [2020-10-13 08:58:33,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:33,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:33,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:33,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:33,208 INFO L87 Difference]: Start difference. First operand 6509 states and 7274 transitions. Second operand 7 states. [2020-10-13 08:58:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:34,902 INFO L93 Difference]: Finished difference Result 13050 states and 14609 transitions. [2020-10-13 08:58:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:34,903 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1710 [2020-10-13 08:58:34,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:34,915 INFO L225 Difference]: With dead ends: 13050 [2020-10-13 08:58:34,916 INFO L226 Difference]: Without dead ends: 6624 [2020-10-13 08:58:34,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:58:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6624 states. [2020-10-13 08:58:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6624 to 6509. [2020-10-13 08:58:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6509 states. [2020-10-13 08:58:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 7265 transitions. [2020-10-13 08:58:35,040 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 7265 transitions. Word has length 1710 [2020-10-13 08:58:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:35,042 INFO L479 AbstractCegarLoop]: Abstraction has 6509 states and 7265 transitions. [2020-10-13 08:58:35,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 7265 transitions. [2020-10-13 08:58:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1736 [2020-10-13 08:58:35,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:35,085 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:35,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:58:35,085 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:35,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:35,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1431628867, now seen corresponding path program 1 times [2020-10-13 08:58:35,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:35,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2301635] [2020-10-13 08:58:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:35,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:38,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:38,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1769 [2020-10-13 08:58:38,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3450 [2020-10-13 08:58:38,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-13 08:58:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:58:38,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:38,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:38,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:38,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:38,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:38,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:58:38,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:38,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:38,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:58:39,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:39,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:39,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:39,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:58:39,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:58:39,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:39,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:58:39,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-13 08:58:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:39,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:39,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-13 08:58:39,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:39,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:39,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:39,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-13 08:58:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8713 backedges. 1286 proven. 111 refuted. 0 times theorem prover too weak. 7316 trivial. 0 not checked. [2020-10-13 08:58:41,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2301635] [2020-10-13 08:58:41,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:41,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:41,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350980456] [2020-10-13 08:58:41,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:41,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:41,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:41,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:41,251 INFO L87 Difference]: Start difference. First operand 6509 states and 7265 transitions. Second operand 7 states. [2020-10-13 08:58:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:42,648 INFO L93 Difference]: Finished difference Result 12970 states and 14527 transitions. [2020-10-13 08:58:42,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:42,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1735 [2020-10-13 08:58:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:42,660 INFO L225 Difference]: With dead ends: 12970 [2020-10-13 08:58:42,660 INFO L226 Difference]: Without dead ends: 6545 [2020-10-13 08:58:42,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:58:42,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6545 states. [2020-10-13 08:58:42,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6545 to 6509. [2020-10-13 08:58:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6509 states. [2020-10-13 08:58:42,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 7255 transitions. [2020-10-13 08:58:42,755 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 7255 transitions. Word has length 1735 [2020-10-13 08:58:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:42,757 INFO L479 AbstractCegarLoop]: Abstraction has 6509 states and 7255 transitions. [2020-10-13 08:58:42,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 7255 transitions. [2020-10-13 08:58:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2020-10-13 08:58:42,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:42,781 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:42,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:58:42,782 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:42,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1042608941, now seen corresponding path program 1 times [2020-10-13 08:58:42,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:42,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843374460] [2020-10-13 08:58:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:43,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1800 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1561 [2020-10-13 08:58:44,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 08:58:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:44,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:44,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:44,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 08:58:44,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:44,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:44,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:44,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:44,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:44,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:58:44,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:44,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:45,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:45,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:58:45,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:58:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 08:58:45,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 08:58:45,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:45,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-13 08:58:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-13 08:58:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:58:45,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:45,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1616 [2020-10-13 08:58:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:45,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:45,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:58:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9568 backedges. 1082 proven. 78 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2020-10-13 08:58:46,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843374460] [2020-10-13 08:58:46,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:46,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:46,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366736679] [2020-10-13 08:58:46,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:46,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:46,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:46,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:46,778 INFO L87 Difference]: Start difference. First operand 6509 states and 7255 transitions. Second operand 7 states. [2020-10-13 08:58:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:48,475 INFO L93 Difference]: Finished difference Result 13091 states and 14634 transitions. [2020-10-13 08:58:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:58:48,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1764 [2020-10-13 08:58:48,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:48,489 INFO L225 Difference]: With dead ends: 13091 [2020-10-13 08:58:48,489 INFO L226 Difference]: Without dead ends: 6695 [2020-10-13 08:58:48,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:58:48,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2020-10-13 08:58:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6693. [2020-10-13 08:58:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2020-10-13 08:58:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 7442 transitions. [2020-10-13 08:58:48,602 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 7442 transitions. Word has length 1764 [2020-10-13 08:58:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:48,604 INFO L479 AbstractCegarLoop]: Abstraction has 6693 states and 7442 transitions. [2020-10-13 08:58:48,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:48,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 7442 transitions. [2020-10-13 08:58:48,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1772 [2020-10-13 08:58:48,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:48,629 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:48,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:58:48,629 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:48,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1761658442, now seen corresponding path program 1 times [2020-10-13 08:58:48,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:48,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042339470] [2020-10-13 08:58:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:50,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1807 [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2230 [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:51,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1535 [2020-10-13 08:58:51,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 08:58:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 08:58:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 08:58:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-13 08:58:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 08:58:51,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:58:51,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-13 08:58:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-13 08:58:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-13 08:58:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-13 08:58:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-13 08:58:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-13 08:58:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-13 08:58:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:51,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:51,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-13 08:58:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:51,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:51,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:58:51,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:52,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1511 [2020-10-13 08:58:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:52,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:52,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:58:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:52,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1623 [2020-10-13 08:58:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:52,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:52,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:52,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:58:52,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:52,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:58:52,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-13 08:58:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9725 backedges. 1398 proven. 111 refuted. 0 times theorem prover too weak. 8216 trivial. 0 not checked. [2020-10-13 08:58:53,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042339470] [2020-10-13 08:58:53,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:58:53,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:58:53,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532112054] [2020-10-13 08:58:53,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:58:53,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:58:53,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:58:53,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:58:53,835 INFO L87 Difference]: Start difference. First operand 6693 states and 7442 transitions. Second operand 7 states. [2020-10-13 08:58:55,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:58:55,120 INFO L93 Difference]: Finished difference Result 13308 states and 14821 transitions. [2020-10-13 08:58:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:58:55,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1771 [2020-10-13 08:58:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:58:55,130 INFO L225 Difference]: With dead ends: 13308 [2020-10-13 08:58:55,131 INFO L226 Difference]: Without dead ends: 6701 [2020-10-13 08:58:55,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:58:55,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2020-10-13 08:58:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6691. [2020-10-13 08:58:55,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6691 states. [2020-10-13 08:58:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 7417 transitions. [2020-10-13 08:58:55,207 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 7417 transitions. Word has length 1771 [2020-10-13 08:58:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:58:55,209 INFO L479 AbstractCegarLoop]: Abstraction has 6691 states and 7417 transitions. [2020-10-13 08:58:55,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:58:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 7417 transitions. [2020-10-13 08:58:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1775 [2020-10-13 08:58:55,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:58:55,231 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:58:55,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:58:55,232 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:58:55,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:58:55,232 INFO L82 PathProgramCache]: Analyzing trace with hash -433638431, now seen corresponding path program 1 times [2020-10-13 08:58:55,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:58:55,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396778231] [2020-10-13 08:58:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:58:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:55,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:59,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:59,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1810 [2020-10-13 08:58:59,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:58:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3595 [2020-10-13 08:58:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:58:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1538 [2020-10-13 08:58:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:58:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:58:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:59,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:59,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:58:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:58:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:58:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:58:59,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:58:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0