/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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:23,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:23,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:23,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:23,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:23,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:23,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:23,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:23,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:23,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:23,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:23,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:23,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:23,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:23,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:23,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:23,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:23,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:23,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:23,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:23,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:23,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:23,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:23,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:23,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:23,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:23,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:23,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:23,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:23,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:23,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:23,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:23,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:23,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:23,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:23,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:23,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:23,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:23,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:23,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:23,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:23,868 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 [2020-09-25 03:08:23,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:23,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:23,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:23,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:23,897 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:23,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:23,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:23,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:23,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:23,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:23,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:23,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:23,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:23,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:23,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:23,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:23,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:23,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:23,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:23,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:23,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:23,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:23,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:23,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:23,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:23,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:23,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:23,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:23,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:23,902 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:08:24,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:24,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:24,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:24,402 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:24,404 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:24,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 03:08:24,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d5ac257/7041f4dee4fd4df9ad04d90f8f8ab344/FLAG331cf49d2 [2020-09-25 03:08:25,023 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:25,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci03.c [2020-09-25 03:08:25,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d5ac257/7041f4dee4fd4df9ad04d90f8f8ab344/FLAG331cf49d2 [2020-09-25 03:08:25,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8d5ac257/7041f4dee4fd4df9ad04d90f8f8ab344 [2020-09-25 03:08:25,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:25,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:25,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:25,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:25,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:25,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347c51ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25, skipping insertion in model container [2020-09-25 03:08:25,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:25,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:25,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:25,649 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:25,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:25,683 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:25,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25 WrapperNode [2020-09-25 03:08:25,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:25,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:25,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:25,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:25,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (1/1) ... [2020-09-25 03:08:25,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:25,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:25,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:25,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:25,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (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 [2020-09-25 03:08:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 03:08:25,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 03:08:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:26,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:26,126 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:26,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:26 BoogieIcfgContainer [2020-09-25 03:08:26,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:26,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:26,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:26,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:26,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:25" (1/3) ... [2020-09-25 03:08:26,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183fb9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:26, skipping insertion in model container [2020-09-25 03:08:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:25" (2/3) ... [2020-09-25 03:08:26,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183fb9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:26, skipping insertion in model container [2020-09-25 03:08:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:26" (3/3) ... [2020-09-25 03:08:26,143 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2020-09-25 03:08:26,156 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:26,168 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:26,193 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:26,227 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:26,227 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:26,227 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:26,228 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:26,228 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:26,228 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:26,228 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:26,228 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:26,264 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 03:08:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:08:26,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:26,280 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 03:08:26,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539850292] [2020-09-25 03:08:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:08:26,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 03:08:26,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:08:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:26,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:26,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:26,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:26,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:26,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:08:26,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:26,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:26,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539850292] [2020-09-25 03:08:26,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:26,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:26,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070009285] [2020-09-25 03:08:26,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:26,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:26,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:26,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:26,769 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 5 states. [2020-09-25 03:08:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:26,896 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 03:08:26,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:26,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 03:08:26,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:26,912 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:08:26,913 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 03:08:26,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 03:08:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 03:08:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:08:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 03:08:26,975 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 03:08:26,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:26,975 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 03:08:26,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 03:08:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 03:08:26,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:26,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:08:26,979 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 03:08:26,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543273421] [2020-09-25 03:08:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:08:27,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 03:08:27,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:27,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:08:27,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:27,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:27,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:27,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:27,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 03:08:27,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:27,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:08:27,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543273421] [2020-09-25 03:08:27,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:27,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:08:27,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455920177] [2020-09-25 03:08:27,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:08:27,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:27,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:08:27,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:08:27,240 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-09-25 03:08:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:27,315 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 03:08:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:08:27,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-09-25 03:08:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:27,318 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:08:27,318 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 03:08:27,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 03:08:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 03:08:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:08:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 03:08:27,328 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 03:08:27,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:27,329 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 03:08:27,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:08:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 03:08:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 03:08:27,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:27,331 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-25 03:08:27,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:08:27,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:27,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 03:08:27,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:27,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335158209] [2020-09-25 03:08:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:08:27,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:27,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-09-25 03:08:27,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:27,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:08:27,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:27,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:08:27,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:27,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:27,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:27,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 03:08:27,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:27,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:27,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:27,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:27,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:27,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:27,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:08:27,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:27,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,006 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:28,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335158209] [2020-09-25 03:08:28,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:28,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:28,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827739429] [2020-09-25 03:08:28,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:28,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:28,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:28,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:28,009 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-09-25 03:08:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:28,128 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2020-09-25 03:08:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:28,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 03:08:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:28,131 INFO L225 Difference]: With dead ends: 69 [2020-09-25 03:08:28,131 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 03:08:28,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:28,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 03:08:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-09-25 03:08:28,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 03:08:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-09-25 03:08:28,144 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 36 [2020-09-25 03:08:28,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:28,144 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-09-25 03:08:28,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-09-25 03:08:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 03:08:28,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:28,147 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1] [2020-09-25 03:08:28,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:08:28,148 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:28,148 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 1 times [2020-09-25 03:08:28,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:28,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765591711] [2020-09-25 03:08:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:08:28,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:28,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 03:08:28,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:28,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:28,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:28,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:28,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:28,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:28,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:28,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 03:08:28,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:28,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:28,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:08:28,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:28,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:28,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:28,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:28,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:28,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:28,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:28,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:28,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:28,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:08:29,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765591711] [2020-09-25 03:08:29,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:29,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 03:08:29,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54160612] [2020-09-25 03:08:29,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:08:29,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:29,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:08:29,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:08:29,011 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 6 states. [2020-09-25 03:08:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:29,111 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-25 03:08:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:29,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-09-25 03:08:29,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:29,114 INFO L225 Difference]: With dead ends: 53 [2020-09-25 03:08:29,114 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 03:08:29,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:29,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 03:08:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-09-25 03:08:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 03:08:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-09-25 03:08:29,124 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 37 [2020-09-25 03:08:29,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:29,124 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-09-25 03:08:29,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:08:29,125 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-09-25 03:08:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 03:08:29,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:29,127 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:08:29,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:08:29,127 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:29,128 INFO L82 PathProgramCache]: Analyzing trace with hash -693972664, now seen corresponding path program 1 times [2020-09-25 03:08:29,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:29,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707399850] [2020-09-25 03:08:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:08:29,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:29,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-09-25 03:08:29,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:29,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:29,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:08:29,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:29,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:29,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:29,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:29,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:29,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:08:30,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:30,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 03:08:30,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:08:30,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:30,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:30,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:08:30,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:30,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:30,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:30,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:08:30,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:30,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:30,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707399850] [2020-09-25 03:08:30,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:30,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:30,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080465878] [2020-09-25 03:08:30,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:30,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:30,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:30,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:30,329 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 7 states. [2020-09-25 03:08:30,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:30,458 INFO L93 Difference]: Finished difference Result 101 states and 136 transitions. [2020-09-25 03:08:30,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:30,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-25 03:08:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:30,462 INFO L225 Difference]: With dead ends: 101 [2020-09-25 03:08:30,462 INFO L226 Difference]: Without dead ends: 65 [2020-09-25 03:08:30,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:30,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-25 03:08:30,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2020-09-25 03:08:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-25 03:08:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2020-09-25 03:08:30,477 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 38 [2020-09-25 03:08:30,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:30,478 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2020-09-25 03:08:30,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:30,478 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2020-09-25 03:08:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:08:30,480 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:30,481 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-09-25 03:08:30,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:08:30,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:30,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:30,482 INFO L82 PathProgramCache]: Analyzing trace with hash -494889179, now seen corresponding path program 2 times [2020-09-25 03:08:30,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:30,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890989146] [2020-09-25 03:08:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:08:35,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:35,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4850 [2020-09-25 03:08:35,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 03:08:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:35,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:35,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:35,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:08:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:35,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:35,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:36,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:08:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:08:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1827 [2020-09-25 03:08:37,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:37,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:08:37,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:37,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:37,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:37,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:37,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 03:08:37,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:37,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:37,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:37,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:37,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:37,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:37,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:37,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:37,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:37,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:37,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:37,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:08:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:37,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:37,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:37,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:08:37,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:37,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:37,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 03:08:37,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890989146] [2020-09-25 03:08:37,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:37,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:08:37,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93634239] [2020-09-25 03:08:37,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:08:37,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:37,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:08:37,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:37,415 INFO L87 Difference]: Start difference. First operand 57 states and 73 transitions. Second operand 8 states. [2020-09-25 03:08:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:37,547 INFO L93 Difference]: Finished difference Result 111 states and 151 transitions. [2020-09-25 03:08:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:37,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-09-25 03:08:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:37,549 INFO L225 Difference]: With dead ends: 111 [2020-09-25 03:08:37,551 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 03:08:37,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 03:08:37,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2020-09-25 03:08:37,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 03:08:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2020-09-25 03:08:37,574 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 54 [2020-09-25 03:08:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:37,574 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2020-09-25 03:08:37,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:08:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2020-09-25 03:08:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 03:08:37,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:37,577 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2020-09-25 03:08:37,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:08:37,581 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:37,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1275966376, now seen corresponding path program 3 times [2020-09-25 03:08:37,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:37,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535350503] [2020-09-25 03:08:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:08:39,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1877 [2020-09-25 03:08:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 03:08:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:39,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:39,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:39,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:39,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:39,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:08:39,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:39,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:39,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:08:41,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:41,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1904 [2020-09-25 03:08:41,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:08:41,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:41,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-25 03:08:41,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:41,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:41,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:41,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:41,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:08:41,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:41,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:08:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:41,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:41,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:41,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:41,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:41,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:41,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:41,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:41,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:41,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 03:08:41,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535350503] [2020-09-25 03:08:41,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:41,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:08:41,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777709191] [2020-09-25 03:08:41,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:08:41,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:08:41,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:08:41,762 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand 8 states. [2020-09-25 03:08:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:41,915 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions. [2020-09-25 03:08:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:08:41,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-09-25 03:08:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:41,920 INFO L225 Difference]: With dead ends: 113 [2020-09-25 03:08:41,920 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 03:08:41,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 03:08:41,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2020-09-25 03:08:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 03:08:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2020-09-25 03:08:41,938 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 55 [2020-09-25 03:08:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:41,941 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2020-09-25 03:08:41,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:08:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2020-09-25 03:08:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-25 03:08:41,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:41,945 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:41,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:08:41,946 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:41,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1106616419, now seen corresponding path program 4 times [2020-09-25 03:08:41,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:41,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368516344] [2020-09-25 03:08:41,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:42,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 03:08:46,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:08:46,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 03:08:46,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:46,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:08:46,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:46,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:46,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:46,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:46,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:46,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:46,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:47,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:48,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3764 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:08:50,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:08:50,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 03:08:50,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:08:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:08:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:50,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:50,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:50,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:50,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:50,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:50,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:50,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:50,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:08:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:50,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:50,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:50,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:08:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:50,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:50,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:50,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:50,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:08:50,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:08:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:50,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:50,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 43 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 03:08:50,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368516344] [2020-09-25 03:08:50,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:50,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:08:50,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130424186] [2020-09-25 03:08:50,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:50,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:50,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:50,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:50,925 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand 7 states. [2020-09-25 03:08:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:51,006 INFO L93 Difference]: Finished difference Result 85 states and 108 transitions. [2020-09-25 03:08:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:08:51,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2020-09-25 03:08:51,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:51,009 INFO L225 Difference]: With dead ends: 85 [2020-09-25 03:08:51,009 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 03:08:51,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:08:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 03:08:51,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2020-09-25 03:08:51,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 03:08:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2020-09-25 03:08:51,019 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 73 [2020-09-25 03:08:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:51,019 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2020-09-25 03:08:51,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2020-09-25 03:08:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-25 03:08:51,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:51,021 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:51,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:08:51,022 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:51,022 INFO L82 PathProgramCache]: Analyzing trace with hash 237402259, now seen corresponding path program 5 times [2020-09-25 03:08:51,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:51,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997984694] [2020-09-25 03:08:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:51,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:53,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 03:08:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 03:08:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 03:08:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 03:08:56,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 03:08:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:56,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:56,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:56,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:56,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:56,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:56,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 03:09:01,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 03:09:01,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:09:01,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:09:01,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:09:01,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:09:01,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1508 [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:02,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:09:02,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:02,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:09:02,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 03:09:02,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:09:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:02,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:02,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:02,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:02,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:02,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:02,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:02,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:09:02,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:02,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:02,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:09:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:02,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:09:02,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:02,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:09:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:07,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:09:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:09:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:09:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:09:08,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:09:08,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:09:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:09:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:08,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:08,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:08,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:08,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:08,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:08,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:08,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:09:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 03:09:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 132 proven. 150 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-09-25 03:09:08,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997984694] [2020-09-25 03:09:08,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:08,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 03:09:08,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904629755] [2020-09-25 03:09:08,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:09:08,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:08,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:09:08,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:09:08,176 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand 10 states. [2020-09-25 03:09:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:08,541 INFO L93 Difference]: Finished difference Result 159 states and 254 transitions. [2020-09-25 03:09:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:09:08,542 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-09-25 03:09:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:08,544 INFO L225 Difference]: With dead ends: 159 [2020-09-25 03:09:08,544 INFO L226 Difference]: Without dead ends: 105 [2020-09-25 03:09:08,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:09:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-25 03:09:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 81. [2020-09-25 03:09:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:09:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 118 transitions. [2020-09-25 03:09:08,579 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 118 transitions. Word has length 126 [2020-09-25 03:09:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:08,580 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 118 transitions. [2020-09-25 03:09:08,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:09:08,581 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 118 transitions. [2020-09-25 03:09:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 03:09:08,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:08,584 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:08,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:09:08,584 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:08,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1124147660, now seen corresponding path program 6 times [2020-09-25 03:09:08,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:08,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1639091554] [2020-09-25 03:09:08,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:08,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 03:09:13,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 03:09:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 03:09:13,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:09:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:09:13,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:09:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:13,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:13,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:13,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:13,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:13,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:13,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:14,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:15,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking...