/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=NARROWEST --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/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:00:31,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:00:31,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:00:31,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:00:31,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:00:31,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:00:31,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:00:31,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:00:31,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:00:31,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:00:31,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:00:31,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:00:31,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:00:31,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:00:31,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:00:31,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:00:31,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:00:31,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:00:31,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:00:31,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:00:31,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:00:31,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:00:31,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:00:31,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:00:31,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:00:31,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:00:31,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:00:31,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:00:31,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:00:31,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:00:31,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:00:31,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:00:31,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:00:31,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:00:31,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:00:31,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:00:31,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:00:31,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:00:31,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:00:31,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:00:31,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:00:31,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:00:31,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:00:31,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:00:31,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:00:31,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:00:31,683 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:00:31,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:00:31,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:00:31,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:00:31,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:00:31,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:00:31,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:00:31,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:00:31,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:00:31,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:00:31,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:00:31,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:00:31,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:00:31,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:00:31,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:00:31,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:00:31,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:00:31,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:31,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:00:31,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:00:31,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:00:31,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:00:31,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:00:31,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:00:31,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:00:31,689 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:00:32,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:00:32,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:00:32,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:00:32,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:00:32,195 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:00:32,196 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 02:00:32,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41414f08b/a0e80037e360435eabe111f4a520e7b8/FLAG0780ebe6a [2020-09-25 02:00:32,855 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:00:32,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-09-25 02:00:32,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41414f08b/a0e80037e360435eabe111f4a520e7b8/FLAG0780ebe6a [2020-09-25 02:00:33,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41414f08b/a0e80037e360435eabe111f4a520e7b8 [2020-09-25 02:00:33,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:00:33,224 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:00:33,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:33,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:00:33,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:00:33,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc0ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33, skipping insertion in model container [2020-09-25 02:00:33,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:00:33,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:00:33,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:33,514 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:00:33,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:33,556 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:00:33,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33 WrapperNode [2020-09-25 02:00:33,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:33,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:00:33,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:00:33,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:00:33,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... [2020-09-25 02:00:33,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:00:33,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:00:33,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:00:33,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:00:33,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:00:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:00:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-09-25 02:00:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:00:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:00:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:00:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-09-25 02:00:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:00:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:00:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:00:33,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:00:33,971 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:00:33,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:33 BoogieIcfgContainer [2020-09-25 02:00:33,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:00:33,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:00:33,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:00:33,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:00:33,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:33" (1/3) ... [2020-09-25 02:00:33,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc82834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:33, skipping insertion in model container [2020-09-25 02:00:33,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:33" (2/3) ... [2020-09-25 02:00:33,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc82834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:33, skipping insertion in model container [2020-09-25 02:00:33,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:33" (3/3) ... [2020-09-25 02:00:33,991 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-09-25 02:00:34,009 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:00:34,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:00:34,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:00:34,084 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:00:34,084 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:00:34,084 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:00:34,084 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:00:34,085 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:00:34,085 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:00:34,085 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:00:34,085 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:00:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-25 02:00:34,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 02:00:34,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:34,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:34,122 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:34,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:34,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2064988448, now seen corresponding path program 1 times [2020-09-25 02:00:34,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:34,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075625839] [2020-09-25 02:00:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:00:34,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 02:00:34,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:00:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 02:00:34,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:00:34,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:34,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:34,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:34,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:34,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:34,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:34,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:00:34,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:34,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:34,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075625839] [2020-09-25 02:00:34,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:34,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:00:34,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501731023] [2020-09-25 02:00:34,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:34,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:34,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:34,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:34,563 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-25 02:00:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:34,702 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-09-25 02:00:34,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:34,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-25 02:00:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:34,718 INFO L225 Difference]: With dead ends: 48 [2020-09-25 02:00:34,719 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 02:00:34,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:34,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 02:00:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 02:00:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 02:00:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 02:00:34,779 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2020-09-25 02:00:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:34,780 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 02:00:34,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 02:00:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 02:00:34,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:34,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:34,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:00:34,784 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:34,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1678486471, now seen corresponding path program 1 times [2020-09-25 02:00:34,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:34,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214648077] [2020-09-25 02:00:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 02:00:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 02:00:34,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:00:34,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:00:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:34,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:34,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:34,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:34,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:35,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:35,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 02:00:35,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:35,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214648077] [2020-09-25 02:00:35,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:35,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:00:35,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687700877] [2020-09-25 02:00:35,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:35,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:35,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:35,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:35,099 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 5 states. [2020-09-25 02:00:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:35,175 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-09-25 02:00:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:35,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 02:00:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:35,178 INFO L225 Difference]: With dead ends: 38 [2020-09-25 02:00:35,178 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 02:00:35,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 02:00:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-25 02:00:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 02:00:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 02:00:35,189 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2020-09-25 02:00:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:35,189 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 02:00:35,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 02:00:35,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 02:00:35,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:35,192 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:35,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:00:35,192 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:35,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:35,193 INFO L82 PathProgramCache]: Analyzing trace with hash 961212118, now seen corresponding path program 1 times [2020-09-25 02:00:35,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:35,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215809279] [2020-09-25 02:00:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:35,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 02:00:35,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-09-25 02:00:35,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:00:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:35,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:35,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:35,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:35,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:35,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:35,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:35,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:35,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 02:00:35,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:35,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 02:00:35,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:00:35,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:35,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:35,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:35,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:00:35,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:00:35,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 02:00:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:35,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:35,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:35,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:35,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:35,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:35,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:00:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 02:00:35,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215809279] [2020-09-25 02:00:35,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:35,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 02:00:35,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256033312] [2020-09-25 02:00:35,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:00:35,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:35,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:00:35,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:35,957 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 6 states. [2020-09-25 02:00:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:36,074 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2020-09-25 02:00:36,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:00:36,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 02:00:36,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:36,076 INFO L225 Difference]: With dead ends: 54 [2020-09-25 02:00:36,077 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 02:00:36,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:00:36,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 02:00:36,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-25 02:00:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-25 02:00:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-09-25 02:00:36,088 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 35 [2020-09-25 02:00:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:36,089 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-09-25 02:00:36,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:00:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-09-25 02:00:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 02:00:36,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:36,092 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:36,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:00:36,092 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:36,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:36,093 INFO L82 PathProgramCache]: Analyzing trace with hash -125795935, now seen corresponding path program 1 times [2020-09-25 02:00:36,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:36,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708628623] [2020-09-25 02:00:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 02:00:36,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:36,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-25 02:00:36,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 02:00:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 02:00:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:36,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:36,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:36,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:36,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:36,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 02:00:36,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:36,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:00:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:36,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:36,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:36,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:00:36,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:36,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:36,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:00:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:36,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:36,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:36,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:36,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:36,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:36,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:36,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 02:00:37,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708628623] [2020-09-25 02:00:37,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:37,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:00:37,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210096539] [2020-09-25 02:00:37,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:00:37,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:37,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:00:37,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:00:37,017 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2020-09-25 02:00:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:37,116 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2020-09-25 02:00:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:00:37,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 02:00:37,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:37,119 INFO L225 Difference]: With dead ends: 46 [2020-09-25 02:00:37,119 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 02:00:37,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:00:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 02:00:37,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-09-25 02:00:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 02:00:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2020-09-25 02:00:37,131 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 36 [2020-09-25 02:00:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:37,132 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2020-09-25 02:00:37,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:00:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2020-09-25 02:00:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 02:00:37,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:37,135 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:37,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:00:37,135 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:37,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:37,136 INFO L82 PathProgramCache]: Analyzing trace with hash 331377205, now seen corresponding path program 2 times [2020-09-25 02:00:37,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:37,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780709571] [2020-09-25 02:00:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:41,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:41,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 02:00:41,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:00:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4614 [2020-09-25 02:00:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:00:41,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:00:41,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 02:00:41,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 02:00:41,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:41,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:41,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:41,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:41,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:41,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:41,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:41,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:42,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:42,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 02:00:42,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:00:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1128 [2020-09-25 02:00:42,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:00:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:00:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 02:00:42,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:42,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:42,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:43,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:43,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 02:00:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:00:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:43,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:43,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 02:00:43,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:00:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:43,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:43,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:00:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:00:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:43,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:43,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:43,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:00:43,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:00:43,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 02:00:43,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780709571] [2020-09-25 02:00:43,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:43,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 02:00:43,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9277337] [2020-09-25 02:00:43,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:00:43,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:43,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:00:43,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:00:43,391 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 8 states. [2020-09-25 02:00:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:43,587 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2020-09-25 02:00:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 02:00:43,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-09-25 02:00:43,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:43,589 INFO L225 Difference]: With dead ends: 80 [2020-09-25 02:00:43,589 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 02:00:43,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:00:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 02:00:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-25 02:00:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 02:00:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2020-09-25 02:00:43,600 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 53 [2020-09-25 02:00:43,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:43,601 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2020-09-25 02:00:43,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:00:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2020-09-25 02:00:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-25 02:00:43,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:43,606 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:43,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:00:43,607 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:43,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:43,609 INFO L82 PathProgramCache]: Analyzing trace with hash 4423077, now seen corresponding path program 3 times [2020-09-25 02:00:43,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:43,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070215814] [2020-09-25 02:00:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:44,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:44,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:48,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 02:00:48,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:00:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 02:00:48,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:00:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:00:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 02:00:48,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:48,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:48,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:48,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:48,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:48,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:48,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:48,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:48,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:48,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:00:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:48,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:49,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:50,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:50,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:51,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 02:00:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:00:53,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 02:00:53,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:54,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:54,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-25 02:00:54,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:00:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:00:54,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:00:54,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:54,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:00:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:54,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:00:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:55,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 02:00:55,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:00:55,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1778 [2020-09-25 02:00:55,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:00:55,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 02:00:55,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:56,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:56,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:56,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:56,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 02:00:56,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:56,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:56,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 02:00:56,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:56,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:00:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:56,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:56,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:56,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:56,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:56,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:56,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:00:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:56,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:56,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:00:56,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:56,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:00:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:56,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:56,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:56,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:56,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:00:56,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:56,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:56,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-25 02:00:56,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070215814] [2020-09-25 02:00:56,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:56,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 02:00:56,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265903333] [2020-09-25 02:00:56,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:00:56,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:56,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:00:56,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:00:56,148 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 11 states. [2020-09-25 02:00:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:56,331 INFO L93 Difference]: Finished difference Result 90 states and 123 transitions. [2020-09-25 02:00:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 02:00:56,331 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 89 [2020-09-25 02:00:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:56,336 INFO L225 Difference]: With dead ends: 90 [2020-09-25 02:00:56,336 INFO L226 Difference]: Without dead ends: 56 [2020-09-25 02:00:56,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:00:56,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-25 02:00:56,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2020-09-25 02:00:56,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 02:00:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2020-09-25 02:00:56,356 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 89 [2020-09-25 02:00:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:56,358 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2020-09-25 02:00:56,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:00:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2020-09-25 02:00:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-25 02:00:56,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:56,365 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:56,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:00:56,370 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:56,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:56,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1419436827, now seen corresponding path program 1 times [2020-09-25 02:00:56,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:56,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816633110] [2020-09-25 02:00:56,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:56,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:57,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:57,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:57,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:57,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:58,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:01:01,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:01:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:01,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:01,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:01:01,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:01,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:01:01,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:01:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:01,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:01,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:03,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:01:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:06,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:06,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:06,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:06,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:06,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:06,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:06,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:06,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:06,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:01:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:06,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:06,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:06,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:06,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 02:01:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:06,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:06,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:07,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 02:01:07,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:01:07,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-09-25 02:01:07,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:07,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:01:07,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 02:01:07,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:01:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:07,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:07,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:01:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:01:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:07,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:07,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:07,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:01:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:07,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:01:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:07,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:07,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 02:01:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:07,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:07,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:07,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:07,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:01:07,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 02:01:07,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:07,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 96 proven. 16 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 02:01:07,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816633110] [2020-09-25 02:01:07,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:01:07,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 02:01:07,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095096411] [2020-09-25 02:01:07,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:01:07,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:01:07,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:01:07,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:01:07,402 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 6 states. [2020-09-25 02:01:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:01:07,535 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2020-09-25 02:01:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:01:07,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-09-25 02:01:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:01:07,538 INFO L225 Difference]: With dead ends: 92 [2020-09-25 02:01:07,538 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 02:01:07,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:01:07,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 02:01:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 02:01:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 02:01:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2020-09-25 02:01:07,552 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 91 [2020-09-25 02:01:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:01:07,552 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2020-09-25 02:01:07,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:01:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2020-09-25 02:01:07,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 02:01:07,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:01:07,554 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:01:07,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:01:07,555 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:01:07,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:01:07,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1575340027, now seen corresponding path program 4 times [2020-09-25 02:01:07,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:01:07,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136685969] [2020-09-25 02:01:07,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:01:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:07,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:07,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:01:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:01:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 02:01:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:12,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:01:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:12,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:12,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:12,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:12,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 02:01:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:12,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:13,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:14,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:16,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:17,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 02:01:17,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 02:01:17,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 02:01:17,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:01:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:01:17,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 02:01:17,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:17,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:17,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:17,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:22,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:22,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 02:01:22,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:01:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 02:01:22,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:01:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:22,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 02:01:22,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:22,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:22,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:22,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:01:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 02:01:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:23,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:01:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:23,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:01:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:23,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 02:01:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:23,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:01:23,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:23,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:01:23,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:01:23,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:23,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 02:01:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:23,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:23,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:23,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:23,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:01:23,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:01:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:23,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:23,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 02:01:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:23,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:23,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:24,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:25,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking...