/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=BIGGEST --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/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:22:51,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:22:51,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:22:51,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:22:51,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:22:51,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:22:51,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:22:51,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:22:51,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:22:51,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:22:51,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:22:51,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:22:51,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:22:51,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:22:51,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:22:51,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:22:51,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:22:51,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:22:51,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:22:51,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:22:51,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:22:51,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:22:51,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:22:51,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:22:51,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:22:51,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:22:51,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:22:51,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:22:51,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:22:51,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:22:51,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:22:51,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:22:51,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:22:51,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:22:51,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:22:51,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:22:51,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:22:51,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:22:51,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:22:51,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:22:51,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:22:51,595 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 [2020-09-24 20:22:51,629 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:22:51,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:22:51,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:22:51,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:22:51,633 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:22:51,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:22:51,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:22:51,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:22:51,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:22:51,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:22:51,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:22:51,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:22:51,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:22:51,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:22:51,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:22:51,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:22:51,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:22:51,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:22:51,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:22:51,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:22:51,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:22:51,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:22:51,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:22:51,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:22:51,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:22:51,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:22:51,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:22:51,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:22:51,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:22:51,641 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:22:52,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:22:52,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:22:52,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:22:52,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:22:52,152 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:22:52,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-24 20:22:52,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec232c3a7/229fd833a7b34313881211aad2b5d442/FLAGe877ce23e [2020-09-24 20:22:52,809 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:22:52,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-24 20:22:52,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec232c3a7/229fd833a7b34313881211aad2b5d442/FLAGe877ce23e [2020-09-24 20:22:53,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec232c3a7/229fd833a7b34313881211aad2b5d442 [2020-09-24 20:22:53,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:22:53,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:22:53,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:22:53,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:22:53,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:22:53,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f80c2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53, skipping insertion in model container [2020-09-24 20:22:53,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:22:53,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:22:53,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:22:53,489 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:22:53,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:22:53,527 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:22:53,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53 WrapperNode [2020-09-24 20:22:53,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:22:53,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:22:53,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:22:53,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:22:53,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (1/1) ... [2020-09-24 20:22:53,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:22:53,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:22:53,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:22:53,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:22:53,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (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 [2020-09-24 20:22:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:22:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:22:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-24 20:22:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:22:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:22:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:22:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-24 20:22:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:22:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:22:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:22:53,966 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:22:53,966 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 20:22:53,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:22:53 BoogieIcfgContainer [2020-09-24 20:22:53,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:22:53,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:22:53,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:22:53,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:22:53,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:22:53" (1/3) ... [2020-09-24 20:22:53,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572a2843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:22:53, skipping insertion in model container [2020-09-24 20:22:53,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:22:53" (2/3) ... [2020-09-24 20:22:53,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572a2843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:22:53, skipping insertion in model container [2020-09-24 20:22:53,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:22:53" (3/3) ... [2020-09-24 20:22:53,983 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-24 20:22:53,995 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:22:54,006 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:22:54,029 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:22:54,060 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:22:54,061 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:22:54,061 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:22:54,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:22:54,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:22:54,062 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:22:54,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:22:54,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:22:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-09-24 20:22:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-24 20:22:54,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:54,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:54,093 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:54,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:54,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1218957033, now seen corresponding path program 1 times [2020-09-24 20:22:54,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:54,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977683459] [2020-09-24 20:22:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:54,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:54,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:54,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 20:22:54,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:54,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 20:22:54,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:22:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:22:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 20:22:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:22:54,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:22:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:54,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:54,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:22:54,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:54,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:22:54,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:22:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:54,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:22:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:22:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:54,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:54,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:54,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:22:54,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:54,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:22:54,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:22:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:54,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:22:54,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:22:54,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977683459] [2020-09-24 20:22:54,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:22:54,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:22:54,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310474490] [2020-09-24 20:22:54,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:22:54,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:22:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:22:54,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:22:54,688 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-09-24 20:22:54,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:22:54,829 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-24 20:22:54,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 20:22:54,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-24 20:22:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:22:54,845 INFO L225 Difference]: With dead ends: 53 [2020-09-24 20:22:54,845 INFO L226 Difference]: Without dead ends: 35 [2020-09-24 20:22:54,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:22:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-24 20:22:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-24 20:22:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 20:22:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2020-09-24 20:22:54,907 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2020-09-24 20:22:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:22:54,907 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2020-09-24 20:22:54,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:22:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2020-09-24 20:22:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 20:22:54,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:54,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:54,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:22:54,912 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:54,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:54,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1438677315, now seen corresponding path program 1 times [2020-09-24 20:22:54,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:54,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454632873] [2020-09-24 20:22:54,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:54,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:22:55,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 20:22:55,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:22:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:22:55,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:22:55,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:55,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:22:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:22:55,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:22:55,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:22:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:22:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:55,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:22:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:22:55,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 20:22:55,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:22:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:22:55,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:22:55,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:22:55,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:22:55,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:22:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 20:22:55,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454632873] [2020-09-24 20:22:55,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:22:55,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 20:22:55,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119299352] [2020-09-24 20:22:55,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:22:55,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:22:55,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:22:55,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:22:55,423 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 6 states. [2020-09-24 20:22:55,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:22:55,560 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2020-09-24 20:22:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 20:22:55,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-24 20:22:55,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:22:55,562 INFO L225 Difference]: With dead ends: 46 [2020-09-24 20:22:55,563 INFO L226 Difference]: Without dead ends: 40 [2020-09-24 20:22:55,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:22:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-24 20:22:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-24 20:22:55,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 20:22:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-24 20:22:55,576 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2020-09-24 20:22:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:22:55,577 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-24 20:22:55,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:22:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-24 20:22:55,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 20:22:55,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:55,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:55,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:22:55,584 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:55,585 INFO L82 PathProgramCache]: Analyzing trace with hash 967575145, now seen corresponding path program 2 times [2020-09-24 20:22:55,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:55,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430744348] [2020-09-24 20:22:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 20:22:55,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-24 20:22:55,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:22:55,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:22:55,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 20:22:55,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:22:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:55,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:55,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:22:55,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:55,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:22:55,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:55,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:22:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:22:55,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:55,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:22:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:55,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:22:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 20:22:56,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:22:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:22:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:56,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:56,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:22:56,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 20:22:56,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:22:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:22:56,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:56,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:56,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:22:56,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:22:56,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:22:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:22:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 20:22:56,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430744348] [2020-09-24 20:22:56,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:22:56,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 20:22:56,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598313209] [2020-09-24 20:22:56,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:22:56,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:22:56,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:22:56,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:22:56,272 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 8 states. [2020-09-24 20:22:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:22:56,421 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2020-09-24 20:22:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 20:22:56,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-09-24 20:22:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:22:56,424 INFO L225 Difference]: With dead ends: 87 [2020-09-24 20:22:56,424 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 20:22:56,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:22:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 20:22:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 20:22:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 20:22:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-24 20:22:56,437 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 42 [2020-09-24 20:22:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:22:56,438 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-24 20:22:56,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:22:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-24 20:22:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 20:22:56,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:56,441 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:56,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:22:56,442 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:56,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:56,442 INFO L82 PathProgramCache]: Analyzing trace with hash -321617853, now seen corresponding path program 3 times [2020-09-24 20:22:56,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:56,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003905669] [2020-09-24 20:22:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:56,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-24 20:22:56,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 20:22:56,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:22:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:22:56,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 20:22:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:56,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:22:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:56,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:22:56,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:22:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:22:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:22:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:56,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:22:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:56,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:56,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:56,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:22:56,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 20:22:56,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:22:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:56,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:22:56,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:57,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:57,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:22:57,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:57,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 20:22:57,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:22:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:57,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:22:57,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:57,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:57,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:22:57,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:57,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 20:22:57,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:22:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:57,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:22:57,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:57,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:57,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:57,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:22:57,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:22:57,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:22:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:22:57,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 20:22:57,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003905669] [2020-09-24 20:22:57,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:22:57,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:22:57,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329193650] [2020-09-24 20:22:57,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:22:57,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:22:57,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:22:57,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:22:57,285 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 9 states. [2020-09-24 20:22:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:22:57,458 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-09-24 20:22:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:22:57,459 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-09-24 20:22:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:22:57,461 INFO L225 Difference]: With dead ends: 65 [2020-09-24 20:22:57,462 INFO L226 Difference]: Without dead ends: 59 [2020-09-24 20:22:57,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:22:57,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-24 20:22:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-24 20:22:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 20:22:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-09-24 20:22:57,473 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 52 [2020-09-24 20:22:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:22:57,474 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-09-24 20:22:57,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:22:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2020-09-24 20:22:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 20:22:57,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:57,477 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:57,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:22:57,477 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:57,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:57,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1776668137, now seen corresponding path program 4 times [2020-09-24 20:22:57,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:57,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159756838] [2020-09-24 20:22:57,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:57,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:57,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 20:22:57,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:57,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-24 20:22:57,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:57,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:22:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:22:57,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 20:22:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:57,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:22:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:57,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:57,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:22:57,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:22:57,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:22:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:22:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:22:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:57,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:58,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:58,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:22:58,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:58,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-24 20:22:58,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:58,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:22:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:58,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:22:58,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:58,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:58,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:58,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:58,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:22:58,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 20:22:58,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:22:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:22:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:58,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:58,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:22:58,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 20:22:58,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:22:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:58,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:22:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:22:58,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:58,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:58,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:58,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:22:58,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:58,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:22:58,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:22:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:58,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:22:58,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:58,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:22:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:58,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:58,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:22:58,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:22:58,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:22:58,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:22:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:22:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:22:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:22:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:22:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:22:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-09-24 20:22:58,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159756838] [2020-09-24 20:22:58,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:22:58,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:22:58,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312392001] [2020-09-24 20:22:58,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:22:58,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:22:58,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:22:58,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:22:58,809 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 9 states. [2020-09-24 20:22:59,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:22:59,020 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2020-09-24 20:22:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:22:59,021 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-09-24 20:22:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:22:59,023 INFO L225 Difference]: With dead ends: 87 [2020-09-24 20:22:59,024 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 20:22:59,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:22:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 20:22:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2020-09-24 20:22:59,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 20:22:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2020-09-24 20:22:59,053 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 62 [2020-09-24 20:22:59,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:22:59,053 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2020-09-24 20:22:59,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:22:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2020-09-24 20:22:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-24 20:22:59,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:22:59,059 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:22:59,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:22:59,059 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:22:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:22:59,062 INFO L82 PathProgramCache]: Analyzing trace with hash 318406209, now seen corresponding path program 1 times [2020-09-24 20:22:59,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:22:59,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138381601] [2020-09-24 20:22:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:22:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:22:59,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:59,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:59,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:59,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:22:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:01,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-24 20:23:01,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:23:01,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2645 [2020-09-24 20:23:01,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:23:01,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 20:23:01,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:23:01,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:01,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:01,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:01,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:01,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:01,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:01,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:01,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:01,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:01,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:02,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:02,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 20:23:02,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:23:02,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-09-24 20:23:02,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:02,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:23:02,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:23:02,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 20:23:02,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:02,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:02,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:02,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:03,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 20:23:03,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:23:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-24 20:23:03,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:23:03,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:23:03,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:23:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:03,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:03,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:03,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:23:03,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:23:03,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-24 20:23:03,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:23:03,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 20:23:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:03,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:03,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:03,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 20:23:03,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:23:03,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-24 20:23:03,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:03,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:03,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:23:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:03,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:03,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:03,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:03,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:23:03,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:23:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:23:03,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:23:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-24 20:23:03,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138381601] [2020-09-24 20:23:03,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:03,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 20:23:03,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176599052] [2020-09-24 20:23:03,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:23:03,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:03,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:23:03,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:23:03,973 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand 8 states. [2020-09-24 20:23:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:04,082 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2020-09-24 20:23:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 20:23:04,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-24 20:23:04,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:04,084 INFO L225 Difference]: With dead ends: 97 [2020-09-24 20:23:04,084 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 20:23:04,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:23:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 20:23:04,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 20:23:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 20:23:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 20:23:04,097 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 63 [2020-09-24 20:23:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:04,098 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 20:23:04,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:23:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 20:23:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 20:23:04,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:04,104 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:04,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 20:23:04,105 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:04,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:04,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1043024061, now seen corresponding path program 5 times [2020-09-24 20:23:04,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:04,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180573093] [2020-09-24 20:23:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:04,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:04,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 20:23:04,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-24 20:23:04,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:23:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 20:23:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:04,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:04,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:04,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:04,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:04,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:04,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:04,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:04,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:04,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:04,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:04,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-24 20:23:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:23:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:04,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 20:23:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:05,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:05,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:05,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:05,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:05,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 20:23:05,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:05,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:05,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:05,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:05,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:05,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:05,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:05,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:05,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 20:23:05,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:05,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:05,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:05,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:05,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:05,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:05,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:23:05,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:05,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:05,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:05,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:05,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:05,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:05,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:23:05,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:05,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:05,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-09-24 20:23:05,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180573093] [2020-09-24 20:23:05,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:05,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 20:23:05,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384978418] [2020-09-24 20:23:05,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:23:05,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:23:05,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:23:05,581 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 11 states. [2020-09-24 20:23:05,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:05,699 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-24 20:23:05,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:23:05,699 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 72 [2020-09-24 20:23:05,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:05,702 INFO L225 Difference]: With dead ends: 61 [2020-09-24 20:23:05,702 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 20:23:05,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:23:05,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 20:23:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 20:23:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 20:23:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-09-24 20:23:05,713 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 72 [2020-09-24 20:23:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:05,714 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-09-24 20:23:05,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:23:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-09-24 20:23:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 20:23:05,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:05,718 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:05,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 20:23:05,718 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:05,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:05,719 INFO L82 PathProgramCache]: Analyzing trace with hash -473356951, now seen corresponding path program 6 times [2020-09-24 20:23:05,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:05,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6481514] [2020-09-24 20:23:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:06,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:23:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-24 20:23:06,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:06,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:06,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:06,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:06,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:06,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:23:06,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:06,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:06,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:06,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:06,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:06,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:06,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:06,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-09-24 20:23:06,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:06,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:23:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:06,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:06,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:06,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:07,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-24 20:23:07,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:07,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:07,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-24 20:23:07,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:07,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:07,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:07,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-24 20:23:07,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:07,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:07,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 20:23:07,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:07,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:07,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:07,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:07,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:23:07,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:07,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:07,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:07,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:07,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:07,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:23:07,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 3 proven. 110 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-24 20:23:07,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6481514] [2020-09-24 20:23:07,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:07,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:23:07,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271575911] [2020-09-24 20:23:07,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:23:07,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:07,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:23:07,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:23:07,724 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 12 states. [2020-09-24 20:23:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:07,866 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2020-09-24 20:23:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:23:07,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-09-24 20:23:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:07,868 INFO L225 Difference]: With dead ends: 66 [2020-09-24 20:23:07,868 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 20:23:07,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:23:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 20:23:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-24 20:23:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-24 20:23:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-24 20:23:07,879 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 82 [2020-09-24 20:23:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:07,880 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-24 20:23:07,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:23:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-24 20:23:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-09-24 20:23:07,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:07,886 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:07,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 20:23:07,887 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:07,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1366105667, now seen corresponding path program 7 times [2020-09-24 20:23:07,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:07,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827018663] [2020-09-24 20:23:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:07,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:08,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:08,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 20:23:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-24 20:23:08,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 20:23:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 20:23:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:08,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:08,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:08,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:08,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:08,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:08,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:08,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:08,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:08,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:08,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:09,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:09,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:09,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:09,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-24 20:23:09,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:09,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 20:23:09,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:09,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:09,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:09,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:09,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:09,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:09,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-09-24 20:23:09,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:09,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:09,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:09,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:09,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:09,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:09,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:09,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:09,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-09-24 20:23:09,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:10,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:10,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:10,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 20:23:10,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:10,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:10,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:10,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:10,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 20:23:10,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:10,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:10,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:10,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:10,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:10,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:10,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 20:23:10,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:10,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:10,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:10,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:10,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:10,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:10,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:10,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:10,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:10,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:23:10,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:10,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:10,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:10,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:23:10,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 24 proven. 134 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-09-24 20:23:10,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827018663] [2020-09-24 20:23:10,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:10,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 20:23:10,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608195701] [2020-09-24 20:23:10,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:23:10,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:10,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:23:10,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:23:10,650 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 13 states. [2020-09-24 20:23:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:10,795 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 20:23:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:23:10,795 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-09-24 20:23:10,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:10,797 INFO L225 Difference]: With dead ends: 71 [2020-09-24 20:23:10,797 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 20:23:10,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 20:23:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 20:23:10,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-09-24 20:23:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 20:23:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-09-24 20:23:10,809 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 92 [2020-09-24 20:23:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:10,810 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-09-24 20:23:10,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:23:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-09-24 20:23:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-24 20:23:10,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:10,814 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:10,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 20:23:10,814 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:10,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1932915479, now seen corresponding path program 8 times [2020-09-24 20:23:10,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:10,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097928619] [2020-09-24 20:23:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:10,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-24 20:23:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-09-24 20:23:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 20:23:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 20:23:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:11,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:11,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:11,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:11,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:11,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:11,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:11,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:11,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:11,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:11,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:11,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:12,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:12,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:12,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:12,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:12,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:12,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-09-24 20:23:12,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:12,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:13,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:13,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:13,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:13,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:13,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-24 20:23:13,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:13,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:13,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:13,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:13,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:13,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-24 20:23:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:13,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:13,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:14,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:14,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:14,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 20:23:14,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:14,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:14,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:14,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:14,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:14,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:14,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-24 20:23:14,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:14,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:14,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:14,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:14,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:14,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 20:23:14,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:14,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:14,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:23:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:14,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:14,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:14,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:14,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:23:14,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:14,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 30 proven. 164 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 20:23:14,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097928619] [2020-09-24 20:23:14,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:14,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 20:23:14,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72644306] [2020-09-24 20:23:14,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 20:23:14,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:14,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 20:23:14,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:23:14,759 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 14 states. [2020-09-24 20:23:14,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:14,961 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-24 20:23:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:23:14,961 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-09-24 20:23:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:14,963 INFO L225 Difference]: With dead ends: 76 [2020-09-24 20:23:14,963 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 20:23:14,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-24 20:23:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 20:23:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 20:23:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 20:23:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 20:23:14,984 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 102 [2020-09-24 20:23:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:14,987 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 20:23:14,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 20:23:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 20:23:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 20:23:14,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:14,989 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:14,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 20:23:14,989 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:14,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1924549309, now seen corresponding path program 9 times [2020-09-24 20:23:14,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:14,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11054842] [2020-09-24 20:23:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:15,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:15,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-24 20:23:15,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:15,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 968 [2020-09-24 20:23:15,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 20:23:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:15,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-24 20:23:15,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:16,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:16,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:16,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:16,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:16,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:16,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:16,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:16,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 20:23:16,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-09-24 20:23:16,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 20:23:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 20:23:16,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:16,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:16,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:17,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:17,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:17,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:17,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-09-24 20:23:17,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:23:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:17,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:17,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:18,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:18,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:18,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:18,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-24 20:23:18,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:18,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:18,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:18,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:18,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:18,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:18,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:18,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:18,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:18,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-09-24 20:23:18,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:18,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:18,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:18,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:18,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:18,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:18,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 20:23:18,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:18,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:18,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:18,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:18,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:19,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:19,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:19,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:19,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:19,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:19,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-24 20:23:19,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:19,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:19,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:19,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:19,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:19,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 20:23:19,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:19,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:23:19,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:19,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:19,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:19,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:19,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:19,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:19,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:23:19,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:19,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 14 proven. 261 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-09-24 20:23:19,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11054842] [2020-09-24 20:23:19,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:19,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 20:23:19,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958554297] [2020-09-24 20:23:19,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 20:23:19,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:19,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 20:23:19,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:23:19,528 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 16 states. [2020-09-24 20:23:19,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:19,683 INFO L93 Difference]: Finished difference Result 81 states and 82 transitions. [2020-09-24 20:23:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 20:23:19,684 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-09-24 20:23:19,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:19,685 INFO L225 Difference]: With dead ends: 81 [2020-09-24 20:23:19,685 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 20:23:19,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=421, Unknown=0, NotChecked=0, Total=650 [2020-09-24 20:23:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 20:23:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-24 20:23:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-24 20:23:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-24 20:23:19,695 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 112 [2020-09-24 20:23:19,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:19,696 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-24 20:23:19,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 20:23:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-24 20:23:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-24 20:23:19,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:19,699 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:19,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 20:23:19,700 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:19,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1700562025, now seen corresponding path program 10 times [2020-09-24 20:23:19,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:19,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145737893] [2020-09-24 20:23:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:19,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:20,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:20,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 961 [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 20:23:20,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:20,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:20,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:20,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:20,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:20,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:20,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:20,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:20,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:20,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:20,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:21,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:21,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 20:23:21,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 20:23:21,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:21,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:21,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:22,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:22,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 20:23:22,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:22,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-09-24 20:23:22,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:23:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 20:23:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:22,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:22,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-09-24 20:23:22,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:23:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:22,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:23,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:23,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:23,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:23,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:23,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:23,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:23,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-24 20:23:23,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:23,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:23,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:23,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:23,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:24,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:24,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:24,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:24,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-24 20:23:24,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:24,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:24,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:24,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 20:23:24,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:24,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:24,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:24,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:24,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:24,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 20:23:24,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:24,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:24,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:24,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 20:23:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:24,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:24,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:24,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:24,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:24,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:23:24,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:24,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 22 proven. 299 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-09-24 20:23:24,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145737893] [2020-09-24 20:23:24,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:24,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 20:23:24,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155861810] [2020-09-24 20:23:24,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 20:23:24,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:24,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 20:23:24,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:23:24,635 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 16 states. [2020-09-24 20:23:24,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:24,800 INFO L93 Difference]: Finished difference Result 86 states and 87 transitions. [2020-09-24 20:23:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:23:24,800 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 122 [2020-09-24 20:23:24,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:24,801 INFO L225 Difference]: With dead ends: 86 [2020-09-24 20:23:24,801 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 20:23:24,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-24 20:23:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 20:23:24,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-24 20:23:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 20:23:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-09-24 20:23:24,816 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 122 [2020-09-24 20:23:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:24,816 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-09-24 20:23:24,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 20:23:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-09-24 20:23:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-24 20:23:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:24,819 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:24,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 20:23:24,819 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1676247997, now seen corresponding path program 11 times [2020-09-24 20:23:24,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:24,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171175628] [2020-09-24 20:23:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:24,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 924 [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 20:23:25,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:25,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 20:23:25,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:25,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:25,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:25,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:25,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:25,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:25,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:26,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:26,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 20:23:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:26,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:26,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:27,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:27,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 20:23:27,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:27,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-24 20:23:27,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:23:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 20:23:27,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:28,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:23:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:28,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 20:23:28,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:28,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:28,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:28,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:28,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:28,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:28,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:29,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:29,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:29,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-24 20:23:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:29,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 20:23:29,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:29,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:29,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:29,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:29,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 20:23:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:29,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:29,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:29,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:29,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:29,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:29,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:29,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:29,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 20:23:29,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:29,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:29,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:30,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:30,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:30,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:30,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:30,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:30,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 20:23:30,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:30,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:30,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:30,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:30,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:30,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:30,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:30,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:30,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:30,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:30,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:30,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:30,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:30,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:23:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:30,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 12 proven. 316 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-09-24 20:23:30,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171175628] [2020-09-24 20:23:30,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:30,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 20:23:30,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807740216] [2020-09-24 20:23:30,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 20:23:30,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:30,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 20:23:30,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:23:30,280 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 17 states. [2020-09-24 20:23:30,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:30,528 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-09-24 20:23:30,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 20:23:30,529 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 132 [2020-09-24 20:23:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:30,530 INFO L225 Difference]: With dead ends: 91 [2020-09-24 20:23:30,530 INFO L226 Difference]: Without dead ends: 85 [2020-09-24 20:23:30,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 20:23:30,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-24 20:23:30,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-24 20:23:30,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 20:23:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 86 transitions. [2020-09-24 20:23:30,536 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 86 transitions. Word has length 132 [2020-09-24 20:23:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:30,537 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 86 transitions. [2020-09-24 20:23:30,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 20:23:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 86 transitions. [2020-09-24 20:23:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:23:30,538 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:30,539 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:30,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 20:23:30,539 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:30,539 INFO L82 PathProgramCache]: Analyzing trace with hash -923497495, now seen corresponding path program 12 times [2020-09-24 20:23:30,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:30,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5454970] [2020-09-24 20:23:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:30,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:31,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:31,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1110 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-24 20:23:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:31,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:31,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:31,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:31,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:31,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:31,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:32,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:32,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 20:23:32,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:32,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-09-24 20:23:32,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 20:23:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:32,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 20:23:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:32,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:33,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:33,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 20:23:33,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:33,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-09-24 20:23:33,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 20:23:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:33,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 20:23:33,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:33,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 20:23:34,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 742 [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 20:23:34,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:34,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:34,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 20:23:34,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:35,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:35,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 492 [2020-09-24 20:23:35,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:23:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:35,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:35,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:35,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:35,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:35,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-24 20:23:35,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:35,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:35,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:36,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:36,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:36,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:36,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:36,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:36,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:36,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 20:23:36,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:36,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:36,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:36,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:36,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:36,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:36,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:36,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 20:23:36,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:36,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:36,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:36,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:36,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 20:23:36,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:36,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:36,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:36,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:36,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:36,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:37,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:37,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:37,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:37,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:23:37,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:37,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:37,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:37,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:37,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:37,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:37,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:23:37,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:37,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:23:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 51 proven. 417 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-09-24 20:23:37,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5454970] [2020-09-24 20:23:37,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:37,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 20:23:37,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243214315] [2020-09-24 20:23:37,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 20:23:37,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:37,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 20:23:37,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-24 20:23:37,144 INFO L87 Difference]: Start difference. First operand 85 states and 86 transitions. Second operand 18 states. [2020-09-24 20:23:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:37,381 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2020-09-24 20:23:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:23:37,381 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 142 [2020-09-24 20:23:37,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:37,383 INFO L225 Difference]: With dead ends: 96 [2020-09-24 20:23:37,385 INFO L226 Difference]: Without dead ends: 90 [2020-09-24 20:23:37,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-24 20:23:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-24 20:23:37,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-24 20:23:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 20:23:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-09-24 20:23:37,390 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 142 [2020-09-24 20:23:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:37,391 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-09-24 20:23:37,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 20:23:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-09-24 20:23:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 20:23:37,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:37,393 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:37,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 20:23:37,393 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:37,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:37,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1719700669, now seen corresponding path program 13 times [2020-09-24 20:23:37,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:37,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191763415] [2020-09-24 20:23:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:37,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 20:23:38,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1236 [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 20:23:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:23:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:38,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:38,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:23:38,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:23:38,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:38,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:23:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:23:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:38,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 20:23:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:38,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:39,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 20:23:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-24 20:23:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:39,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:39,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:40,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:40,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 20:23:40,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:40,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-09-24 20:23:40,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 20:23:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:40,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 20:23:40,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:40,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:40,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:41,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:41,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-24 20:23:41,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-24 20:23:41,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 20:23:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:41,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 20:23:41,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:41,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:41,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:42,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:42,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-24 20:23:42,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:42,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-24 20:23:42,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 20:23:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:42,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-24 20:23:42,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:42,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:43,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:43,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 20:23:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:43,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:43,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:43,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:43,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 20:23:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:43,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:43,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:43,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 20:23:43,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:43,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-24 20:23:43,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 20:23:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 20:23:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 20:23:44,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:23:44,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 20:23:44,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 20:23:44,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:23:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:44,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 20:23:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 20:23:44,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:44,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-24 20:23:44,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 20:23:44,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:44,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 20:23:44,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:44,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:44,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 20:23:44,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 20:23:44,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 20:23:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:44,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 20:23:44,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:44,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:44,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:45,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:45,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:23:45,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:45,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 20:23:45,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:45,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 20:23:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:45,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:23:45,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:45,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:45,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:45,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-24 20:23:45,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:23:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:23:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 20:23:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:45,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 20:23:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:45,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:23:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:23:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:23:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:23:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:23:45,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:23:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:23:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:23:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:23:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:23:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 60 proven. 488 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2020-09-24 20:23:45,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191763415] [2020-09-24 20:23:45,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:23:45,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:23:45,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147068462] [2020-09-24 20:23:45,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:23:45,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:23:45,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:23:45,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:23:45,264 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 19 states. [2020-09-24 20:23:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:23:45,554 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2020-09-24 20:23:45,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:23:45,554 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 152 [2020-09-24 20:23:45,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:23:45,555 INFO L225 Difference]: With dead ends: 101 [2020-09-24 20:23:45,556 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 20:23:45,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 20:23:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 20:23:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-09-24 20:23:45,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 20:23:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 96 transitions. [2020-09-24 20:23:45,561 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 96 transitions. Word has length 152 [2020-09-24 20:23:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:23:45,562 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 96 transitions. [2020-09-24 20:23:45,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:23:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 96 transitions. [2020-09-24 20:23:45,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 20:23:45,564 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:23:45,564 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:23:45,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 20:23:45,565 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:23:45,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:23:45,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1375329431, now seen corresponding path program 14 times [2020-09-24 20:23:45,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:23:45,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137547710] [2020-09-24 20:23:45,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:23:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:23:45,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking...