/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/Fibonacci01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:08:22,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:08:22,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:08:22,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:08:22,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:08:22,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:08:22,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:08:22,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:08:22,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:08:22,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:08:22,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:08:22,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:08:22,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:08:22,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:08:22,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:08:22,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:08:22,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:08:22,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:08:22,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:08:22,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:08:22,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:08:22,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:08:22,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:08:22,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:08:22,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:08:22,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:08:22,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:08:22,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:08:22,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:08:22,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:08:22,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:08:22,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:08:22,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:08:22,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:08:22,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:08:22,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:08:22,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:08:22,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:08:22,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:08:22,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:08:22,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:08:22,824 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 03:08:22,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:08:22,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:08:22,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:08:22,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:08:22,854 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:08:22,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:08:22,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:08:22,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:08:22,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:08:22,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:08:22,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:08:22,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:08:22,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:08:22,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:08:22,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:08:22,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:08:22,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:08:22,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:08:22,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:08:22,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:08:22,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:08:22,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:08:22,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:08:22,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:08:22,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:08:22,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:08:22,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:08:22,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:08:22,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:08:22,859 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 03:08:23,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:08:23,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:08:23,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:08:23,367 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:08:23,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:08:23,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-09-25 03:08:23,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b903a6f4/9b1caf0b7a9e45788b6bd58d92c74d91/FLAGd2c990574 [2020-09-25 03:08:24,013 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:08:24,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci01-1.c [2020-09-25 03:08:24,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b903a6f4/9b1caf0b7a9e45788b6bd58d92c74d91/FLAGd2c990574 [2020-09-25 03:08:24,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b903a6f4/9b1caf0b7a9e45788b6bd58d92c74d91 [2020-09-25 03:08:24,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:08:24,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:08:24,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:24,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:08:24,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:08:24,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a18185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24, skipping insertion in model container [2020-09-25 03:08:24,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:08:24,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:08:24,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:24,649 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:08:24,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:08:24,683 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:08:24,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24 WrapperNode [2020-09-25 03:08:24,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:08:24,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:08:24,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:08:24,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:08:24,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (1/1) ... [2020-09-25 03:08:24,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:08:24,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:08:24,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:08:24,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:08:24,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (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 03:08:24,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:08:24,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:08:24,892 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 03:08:24,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:08:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:08:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:08:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 03:08:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:08:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:08:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:08:25,119 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:08:25,119 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:08:25,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:25 BoogieIcfgContainer [2020-09-25 03:08:25,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:08:25,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:08:25,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:08:25,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:08:25,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:08:24" (1/3) ... [2020-09-25 03:08:25,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5098a70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:25, skipping insertion in model container [2020-09-25 03:08:25,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:08:24" (2/3) ... [2020-09-25 03:08:25,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5098a70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:08:25, skipping insertion in model container [2020-09-25 03:08:25,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:08:25" (3/3) ... [2020-09-25 03:08:25,134 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci01-1.c [2020-09-25 03:08:25,144 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:08:25,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:08:25,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:08:25,204 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:08:25,204 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:08:25,204 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:08:25,205 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:08:25,205 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:08:25,205 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:08:25,205 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:08:25,205 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:08:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-09-25 03:08:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:08:25,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:25,236 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 03:08:25,237 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1379859160, now seen corresponding path program 1 times [2020-09-25 03:08:25,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:25,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252401929] [2020-09-25 03:08:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:08:25,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 03:08:25,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 03:08:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:08:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:25,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:08:25,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:25,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:25,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:25,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:25,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:08:25,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:25,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:25,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:25,892 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 03:08:25,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252401929] [2020-09-25 03:08:25,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:25,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:08:25,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089307826] [2020-09-25 03:08:25,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:25,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:25,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:25,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:25,924 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states. [2020-09-25 03:08:26,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:26,139 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 03:08:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:08:26,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-25 03:08:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:26,158 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:08:26,159 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 03:08:26,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:08:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 03:08:26,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 03:08:26,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:08:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 03:08:26,227 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 19 [2020-09-25 03:08:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:26,228 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 03:08:26,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 03:08:26,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 03:08:26,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,231 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 03:08:26,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:08:26,232 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2056866127, now seen corresponding path program 1 times [2020-09-25 03:08:26,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147223069] [2020-09-25 03:08:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 03:08:26,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 03:08:26,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:26,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:08:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:26,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:26,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:08:26,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:26,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:26,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:26,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:26,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:26,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:26,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:08:26,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:08:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:26,567 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 03:08:26,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147223069] [2020-09-25 03:08:26,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:08:26,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:08:26,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401961325] [2020-09-25 03:08:26,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:08:26,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:26,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:08:26,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:08:26,572 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-09-25 03:08:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:26,733 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-09-25 03:08:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:08:26,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-09-25 03:08:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:26,736 INFO L225 Difference]: With dead ends: 39 [2020-09-25 03:08:26,736 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 03:08:26,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:08:26,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 03:08:26,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-25 03:08:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:08:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-09-25 03:08:26,747 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2020-09-25 03:08:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:26,747 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-09-25 03:08:26,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:08:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-09-25 03:08:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 03:08:26,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:26,765 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 03:08:26,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:08:26,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:26,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1274124978, now seen corresponding path program 1 times [2020-09-25 03:08:26,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:26,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194116297] [2020-09-25 03:08:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:26,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 03:08:27,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:27,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-09-25 03:08:27,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 03:08:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:27,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:08:27,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:27,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:27,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 03:08:27,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:27,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:27,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:27,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 03:08:27,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:27,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:27,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:27,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:27,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:27,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:27,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:27,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 03:08:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:08:27,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194116297] [2020-09-25 03:08:27,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:27,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:08:27,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894071809] [2020-09-25 03:08:27,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:08:27,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:27,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:08:27,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:27,843 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 11 states. [2020-09-25 03:08:28,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:28,150 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2020-09-25 03:08:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:08:28,151 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-09-25 03:08:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:28,154 INFO L225 Difference]: With dead ends: 50 [2020-09-25 03:08:28,154 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 03:08:28,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:08:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 03:08:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-09-25 03:08:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 03:08:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2020-09-25 03:08:28,167 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 36 [2020-09-25 03:08:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:28,168 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2020-09-25 03:08:28,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:08:28,168 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2020-09-25 03:08:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 03:08:28,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:28,171 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 03:08:28,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:08:28,171 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1670083565, now seen corresponding path program 1 times [2020-09-25 03:08:28,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:28,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877684917] [2020-09-25 03:08:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:28,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:08:29,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:29,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-25 03:08:29,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:29,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:29,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:29,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:29,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:29,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:29,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:29,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-09-25 03:08:29,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:29,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:29,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:30,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:30,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:08:30,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:30,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:08:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:30,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:30,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:08:30,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 03:08:30,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877684917] [2020-09-25 03:08:30,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:30,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:08:30,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566174444] [2020-09-25 03:08:30,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:08:30,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:30,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:08:30,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:08:30,156 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 11 states. [2020-09-25 03:08:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:30,452 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-09-25 03:08:30,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:08:30,455 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 03:08:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:30,459 INFO L225 Difference]: With dead ends: 58 [2020-09-25 03:08:30,459 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 03:08:30,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:08:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 03:08:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-09-25 03:08:30,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 03:08:30,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2020-09-25 03:08:30,486 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 37 [2020-09-25 03:08:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:30,491 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2020-09-25 03:08:30,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:08:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2020-09-25 03:08:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 03:08:30,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:30,498 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 03:08:30,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:08:30,499 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:30,504 INFO L82 PathProgramCache]: Analyzing trace with hash -2043121517, now seen corresponding path program 2 times [2020-09-25 03:08:30,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:30,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443719829] [2020-09-25 03:08:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:30,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:30,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:08:31,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 860 [2020-09-25 03:08:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 03:08:31,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 03:08:31,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:31,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:31,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:31,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:31,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:31,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:31,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 03:08:31,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:31,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:31,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:08:31,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:31,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:31,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:31,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:31,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:31,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:31,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:31,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443719829] [2020-09-25 03:08:31,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:31,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:08:31,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87002048] [2020-09-25 03:08:31,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:08:31,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:31,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:08:31,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:08:31,692 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 12 states. [2020-09-25 03:08:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:31,989 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2020-09-25 03:08:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:08:31,991 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 03:08:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:31,997 INFO L225 Difference]: With dead ends: 66 [2020-09-25 03:08:31,997 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 03:08:31,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:08:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 03:08:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2020-09-25 03:08:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-25 03:08:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2020-09-25 03:08:32,033 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 37 [2020-09-25 03:08:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:32,033 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2020-09-25 03:08:32,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:08:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-09-25 03:08:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 03:08:32,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:32,038 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 03:08:32,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:08:32,039 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:32,039 INFO L82 PathProgramCache]: Analyzing trace with hash -693972664, now seen corresponding path program 1 times [2020-09-25 03:08:32,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:32,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889130238] [2020-09-25 03:08:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:32,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 03:08:32,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:32,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-09-25 03:08:32,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:08:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:32,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 03:08:32,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:32,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:32,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:32,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:32,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:32,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:32,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:08:33,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:33,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 03:08:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:08:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 03:08:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:33,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:08:33,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:33,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:33,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:33,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 03:08:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:33,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:08:33,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889130238] [2020-09-25 03:08:33,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:33,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 03:08:33,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051905373] [2020-09-25 03:08:33,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 03:08:33,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 03:08:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:08:33,247 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand 12 states. [2020-09-25 03:08:33,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:33,556 INFO L93 Difference]: Finished difference Result 74 states and 111 transitions. [2020-09-25 03:08:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:08:33,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-09-25 03:08:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:33,560 INFO L225 Difference]: With dead ends: 74 [2020-09-25 03:08:33,561 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 03:08:33,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:08:33,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 03:08:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2020-09-25 03:08:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-25 03:08:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2020-09-25 03:08:33,596 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 38 [2020-09-25 03:08:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:33,598 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2020-09-25 03:08:33,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 03:08:33,599 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2020-09-25 03:08:33,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:08:33,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:33,603 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 03:08:33,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:08:33,604 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:33,605 INFO L82 PathProgramCache]: Analyzing trace with hash -111543021, now seen corresponding path program 3 times [2020-09-25 03:08:33,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:33,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712534469] [2020-09-25 03:08:33,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:33,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:33,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:34,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:35,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:38,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:08:38,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:08:38,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:08:38,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:38,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:08:38,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 03:08:38,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:38,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:38,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:38,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:38,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:38,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:38,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:38,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:38,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:38,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:38,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:39,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:40,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:08:43,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:08:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:08:43,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:08:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:08:43,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:43,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:43,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:43,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:08:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:43,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:43,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:43,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:08:44,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 03:08:44,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:08:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:08:44,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:44,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:44,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:44,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:44,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:44,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:44,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:44,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:44,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:44,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 03:08:44,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712534469] [2020-09-25 03:08:44,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:44,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 03:08:44,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806489045] [2020-09-25 03:08:44,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:08:44,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:44,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:08:44,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:08:44,401 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand 16 states. [2020-09-25 03:08:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:44,790 INFO L93 Difference]: Finished difference Result 118 states and 197 transitions. [2020-09-25 03:08:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:08:44,792 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2020-09-25 03:08:44,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:44,793 INFO L225 Difference]: With dead ends: 118 [2020-09-25 03:08:44,793 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 03:08:44,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2020-09-25 03:08:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 03:08:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 53. [2020-09-25 03:08:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 03:08:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2020-09-25 03:08:44,823 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 54 [2020-09-25 03:08:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:44,824 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2020-09-25 03:08:44,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:08:44,824 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2020-09-25 03:08:44,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:08:44,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:44,828 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:08:44,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:08:44,829 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:44,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1985616609, now seen corresponding path program 2 times [2020-09-25 03:08:44,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:44,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263449908] [2020-09-25 03:08:44,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:44,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:44,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:45,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:46,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 03:08:49,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:08:49,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:08:49,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:08:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:49,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 03:08:49,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:49,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:49,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:49,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:49,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:49,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:49,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:50,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 03:08:54,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:08:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4651 [2020-09-25 03:08:54,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:08:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:08:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:54,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:54,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:08:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:54,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:08:54,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:08:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 03:08:54,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:08:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:08:54,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:08:54,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:54,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:54,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:54,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:54,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:08:54,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:08:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:54,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:55,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:55,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:55,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:55,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:55,059 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 37 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 03:08:55,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263449908] [2020-09-25 03:08:55,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:55,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:08:55,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045281757] [2020-09-25 03:08:55,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:08:55,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:55,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:08:55,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:08:55,062 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand 15 states. [2020-09-25 03:08:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:08:55,642 INFO L93 Difference]: Finished difference Result 90 states and 129 transitions. [2020-09-25 03:08:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:08:55,644 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-09-25 03:08:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:08:55,646 INFO L225 Difference]: With dead ends: 90 [2020-09-25 03:08:55,646 INFO L226 Difference]: Without dead ends: 84 [2020-09-25 03:08:55,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2020-09-25 03:08:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-25 03:08:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69. [2020-09-25 03:08:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 03:08:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 108 transitions. [2020-09-25 03:08:55,674 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 108 transitions. Word has length 56 [2020-09-25 03:08:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:08:55,675 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 108 transitions. [2020-09-25 03:08:55,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:08:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2020-09-25 03:08:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:08:55,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:08:55,680 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 03:08:55,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:08:55,681 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:08:55,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:08:55,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1799591387, now seen corresponding path program 4 times [2020-09-25 03:08:55,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:08:55,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004777262] [2020-09-25 03:08:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:08:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:55,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:57,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:08:57,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1788 [2020-09-25 03:08:57,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:08:57,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:08:57,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 03:08:57,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:57,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:08:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:57,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:08:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:57,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:08:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:08:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:58,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:08:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:58,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:58,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:58,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:08:58,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:08:58,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:58,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:58,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:58,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:08:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:08:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:59,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:08:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:59,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:08:59,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:08:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:08:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:59,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:08:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:08:59,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:08:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:08:59,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:08:59,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:08:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:08:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:08:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:08:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:08:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:08:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:08:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 03:08:59,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004777262] [2020-09-25 03:08:59,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:08:59,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 03:08:59,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784482232] [2020-09-25 03:08:59,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 03:08:59,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:08:59,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 03:08:59,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:08:59,246 INFO L87 Difference]: Start difference. First operand 69 states and 108 transitions. Second operand 17 states. [2020-09-25 03:09:00,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:00,018 INFO L93 Difference]: Finished difference Result 104 states and 169 transitions. [2020-09-25 03:09:00,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 03:09:00,019 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 54 [2020-09-25 03:09:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:00,021 INFO L225 Difference]: With dead ends: 104 [2020-09-25 03:09:00,022 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 03:09:00,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2020-09-25 03:09:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 03:09:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 75. [2020-09-25 03:09:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 03:09:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 119 transitions. [2020-09-25 03:09:00,038 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 119 transitions. Word has length 54 [2020-09-25 03:09:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:00,039 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 119 transitions. [2020-09-25 03:09:00,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 03:09:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 119 transitions. [2020-09-25 03:09:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 03:09:00,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:00,040 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 03:09:00,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:09:00,041 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2003700030, now seen corresponding path program 5 times [2020-09-25 03:09:00,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:00,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544259228] [2020-09-25 03:09:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:00,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:00,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1085 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 03:09:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:01,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:09:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 03:09:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:09:01,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:01,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:01,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:01,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:01,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:02,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:02,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 03:09:02,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544259228] [2020-09-25 03:09:02,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:02,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:09:02,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391796931] [2020-09-25 03:09:02,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:09:02,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:02,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:09:02,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:09:02,105 INFO L87 Difference]: Start difference. First operand 75 states and 119 transitions. Second operand 15 states. [2020-09-25 03:09:02,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:02,695 INFO L93 Difference]: Finished difference Result 147 states and 236 transitions. [2020-09-25 03:09:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 03:09:02,699 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-09-25 03:09:02,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:02,701 INFO L225 Difference]: With dead ends: 147 [2020-09-25 03:09:02,701 INFO L226 Difference]: Without dead ends: 77 [2020-09-25 03:09:02,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=654, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:09:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-25 03:09:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2020-09-25 03:09:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 03:09:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2020-09-25 03:09:02,712 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 55 [2020-09-25 03:09:02,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:02,712 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2020-09-25 03:09:02,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:09:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2020-09-25 03:09:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 03:09:02,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:02,714 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:09:02,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 03:09:02,714 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:02,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:02,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1288436502, now seen corresponding path program 2 times [2020-09-25 03:09:02,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:02,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212271416] [2020-09-25 03:09:02,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:02,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:02,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:03,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:09:04,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1878 [2020-09-25 03:09:04,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 03:09:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:04,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 03:09:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:04,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:04,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:04,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:04,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:04,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:04,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 03:09:06,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:09:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1583 [2020-09-25 03:09:06,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 03:09:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:09:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:09:06,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:06,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:09:06,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:06,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:06,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:06,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:06,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:09:06,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:06,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:09:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:06,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:06,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:09:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:06,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:06,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:06,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 03:09:06,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212271416] [2020-09-25 03:09:06,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:06,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 03:09:06,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089665114] [2020-09-25 03:09:06,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 03:09:06,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:06,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 03:09:06,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:09:06,570 INFO L87 Difference]: Start difference. First operand 65 states and 89 transitions. Second operand 16 states. [2020-09-25 03:09:07,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:07,199 INFO L93 Difference]: Finished difference Result 143 states and 217 transitions. [2020-09-25 03:09:07,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 03:09:07,199 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2020-09-25 03:09:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:07,201 INFO L225 Difference]: With dead ends: 143 [2020-09-25 03:09:07,201 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 03:09:07,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2020-09-25 03:09:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 03:09:07,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-09-25 03:09:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:09:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 114 transitions. [2020-09-25 03:09:07,212 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 114 transitions. Word has length 53 [2020-09-25 03:09:07,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:07,212 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 114 transitions. [2020-09-25 03:09:07,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 03:09:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2020-09-25 03:09:07,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-25 03:09:07,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:07,214 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 03:09:07,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 03:09:07,214 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:07,215 INFO L82 PathProgramCache]: Analyzing trace with hash 847598467, now seen corresponding path program 6 times [2020-09-25 03:09:07,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:07,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925653183] [2020-09-25 03:09:07,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:07,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 03:09:10,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:09:10,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2883 [2020-09-25 03:09:10,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:09:10,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:10,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 03:09:10,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:10,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:10,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:10,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:10,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:09:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:09:12,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:09:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:12,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:09:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:12,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:09:12,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:09:12,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:09:12,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:09:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:09:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:09:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:09:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:09:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 24 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 03:09:12,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925653183] [2020-09-25 03:09:12,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:09:12,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:09:12,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019830705] [2020-09-25 03:09:12,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:09:12,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:09:12,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:09:12,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:09:12,242 INFO L87 Difference]: Start difference. First operand 81 states and 114 transitions. Second operand 14 states. [2020-09-25 03:09:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:09:12,614 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2020-09-25 03:09:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:09:12,615 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-09-25 03:09:12,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:09:12,617 INFO L225 Difference]: With dead ends: 102 [2020-09-25 03:09:12,617 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 03:09:12,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2020-09-25 03:09:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 03:09:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2020-09-25 03:09:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 03:09:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 114 transitions. [2020-09-25 03:09:12,627 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 114 transitions. Word has length 54 [2020-09-25 03:09:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:09:12,627 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 114 transitions. [2020-09-25 03:09:12,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:09:12,628 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 114 transitions. [2020-09-25 03:09:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 03:09:12,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:09:12,630 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 03:09:12,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 03:09:12,630 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:09:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:09:12,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1275966376, now seen corresponding path program 7 times [2020-09-25 03:09:12,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:09:12,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042737013] [2020-09-25 03:09:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:09:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:12,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:16,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:09:16,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4180 [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 03:09:16,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:09:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:16,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:09:16,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:09:16,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:09:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:09:16,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:09:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:09:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:09:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:09:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:09:16,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 03:09:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:09:16,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:09:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking...