/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/Ackermann04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:00:22,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:00:22,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:00:23,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:00:23,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:00:23,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:00:23,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:00:23,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:00:23,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:00:23,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:00:23,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:00:23,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:00:23,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:00:23,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:00:23,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:00:23,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:00:23,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:00:23,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:00:23,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:00:23,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:00:23,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:00:23,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:00:23,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:00:23,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:00:23,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:00:23,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:00:23,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:00:23,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:00:23,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:00:23,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:00:23,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:00:23,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:00:23,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:00:23,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:00:23,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:00:23,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:00:23,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:00:23,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:00:23,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:00:23,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:00:23,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:00:23,088 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 02:00:23,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:00:23,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:00:23,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:00:23,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:00:23,144 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:00:23,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:00:23,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:00:23,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:00:23,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:00:23,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:00:23,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:00:23,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:00:23,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:00:23,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:00:23,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:00:23,148 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:00:23,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:00:23,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:00:23,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:00:23,149 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:00:23,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:00:23,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:23,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:00:23,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:00:23,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:00:23,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:00:23,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:00:23,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:00:23,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:00:23,151 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 02:00:23,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:00:23,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:00:23,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:00:23,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:00:23,643 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:00:23,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 02:00:23,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/645dde376/7c142859f204439d983b945e22d925c5/FLAG880f19e56 [2020-09-25 02:00:24,285 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:00:24,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 02:00:24,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/645dde376/7c142859f204439d983b945e22d925c5/FLAG880f19e56 [2020-09-25 02:00:24,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/645dde376/7c142859f204439d983b945e22d925c5 [2020-09-25 02:00:24,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:00:24,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:00:24,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:24,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:00:24,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:00:24,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ad3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24, skipping insertion in model container [2020-09-25 02:00:24,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:24,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:00:24,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:00:24,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:24,948 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:00:24,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:24,995 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:00:24,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24 WrapperNode [2020-09-25 02:00:24,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:24,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:00:24,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:00:24,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:00:25,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... [2020-09-25 02:00:25,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:00:25,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:00:25,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:00:25,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:00:25,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:00:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:00:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 02:00:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:00:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:00:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:00:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 02:00:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:00:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:00:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:00:25,567 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:00:25,567 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:00:25,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:25 BoogieIcfgContainer [2020-09-25 02:00:25,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:00:25,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:00:25,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:00:25,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:00:25,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:24" (1/3) ... [2020-09-25 02:00:25,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2548eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:25, skipping insertion in model container [2020-09-25 02:00:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:24" (2/3) ... [2020-09-25 02:00:25,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2548eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:25, skipping insertion in model container [2020-09-25 02:00:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:25" (3/3) ... [2020-09-25 02:00:25,584 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann04.c [2020-09-25 02:00:25,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:00:25,608 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:00:25,644 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:00:25,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:00:25,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:00:25,708 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:00:25,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:00:25,708 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:00:25,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:00:25,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:00:25,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:00:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 02:00:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 02:00:25,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:25,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:25,754 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:25,761 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 02:00:25,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:25,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993392100] [2020-09-25 02:00:25,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:25,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 02:00:26,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 02:00:26,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:26,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:00:26,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:00:26,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:26,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:26,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:26,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:26,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:26,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:26,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:00:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:26,333 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 02:00:26,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993392100] [2020-09-25 02:00:26,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:26,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:00:26,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609832878] [2020-09-25 02:00:26,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:26,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:26,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:26,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:26,368 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 02:00:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:26,524 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 02:00:26,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:26,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 02:00:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:26,543 INFO L225 Difference]: With dead ends: 88 [2020-09-25 02:00:26,544 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 02:00:26,550 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 02:00:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 02:00:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 02:00:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 02:00:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 02:00:26,613 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 02:00:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:26,614 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 02:00:26,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 02:00:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 02:00:26,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:26,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:26,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:00:26,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:26,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 02:00:26,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:26,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300707990] [2020-09-25 02:00:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:26,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:27,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 02:00:27,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:27,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-09-25 02:00:27,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:27,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:27,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:27,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:00:27,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:00:27,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:27,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:27,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:27,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:27,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:00:27,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:27,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:27,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:27,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:27,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:27,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:27,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:27,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 02:00:27,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:27,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:27,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:27,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:27,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:27,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:00:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:27,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:00:27,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300707990] [2020-09-25 02:00:27,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:27,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 02:00:27,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660442929] [2020-09-25 02:00:27,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:00:27,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:27,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:00:27,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:27,422 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 5 states. [2020-09-25 02:00:27,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:27,545 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2020-09-25 02:00:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:27,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 02:00:27,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:27,550 INFO L225 Difference]: With dead ends: 83 [2020-09-25 02:00:27,551 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 02:00:27,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 02:00:27,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 02:00:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 02:00:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 02:00:27,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 02:00:27,582 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 34 [2020-09-25 02:00:27,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:27,582 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 02:00:27,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:00:27,583 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 02:00:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 02:00:27,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:27,590 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:27,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:00:27,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:27,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1685750542, now seen corresponding path program 1 times [2020-09-25 02:00:27,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:27,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436027035] [2020-09-25 02:00:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:27,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:27,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 02:00:30,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3164 [2020-09-25 02:00:30,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:00:30,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:30,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:30,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:30,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:30,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:30,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 02:00:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:30,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 02:00:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:30,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:31,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:31,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:31,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:31,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 02:00:31,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:31,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:31,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:31,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:31,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:31,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:31,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:31,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:31,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:31,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:31,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:31,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:00:31,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:31,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:31,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:00:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 02:00:31,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436027035] [2020-09-25 02:00:31,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:31,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:00:31,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856458570] [2020-09-25 02:00:31,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:00:31,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:31,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:00:31,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:00:31,092 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 7 states. [2020-09-25 02:00:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:31,264 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2020-09-25 02:00:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:00:31,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 02:00:31,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:31,273 INFO L225 Difference]: With dead ends: 75 [2020-09-25 02:00:31,273 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 02:00:31,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:00:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 02:00:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-25 02:00:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 02:00:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 91 transitions. [2020-09-25 02:00:31,303 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 91 transitions. Word has length 53 [2020-09-25 02:00:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:31,304 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 91 transitions. [2020-09-25 02:00:31,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:00:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-09-25 02:00:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:00:31,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:31,314 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:31,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:00:31,314 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:31,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:31,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1817818703, now seen corresponding path program 2 times [2020-09-25 02:00:31,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:31,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143843707] [2020-09-25 02:00:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:31,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:31,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 02:00:34,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2751 [2020-09-25 02:00:34,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:00:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:00:34,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 02:00:34,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:34,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:34,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:34,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:34,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:34,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:34,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:34,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:34,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:34,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 02:00:37,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:37,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3070 [2020-09-25 02:00:37,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:00:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 02:00:37,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:37,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-09-25 02:00:37,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:00:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 02:00:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:37,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:37,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 02:00:37,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:00:37,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:00:37,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:37,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:00:37,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:37,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:37,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 02:00:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:37,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:37,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:37,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:37,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:37,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:37,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:00:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-09-25 02:00:37,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143843707] [2020-09-25 02:00:37,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:37,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 02:00:37,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509737751] [2020-09-25 02:00:37,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:00:37,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:37,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:00:37,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:00:37,909 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 6 states. [2020-09-25 02:00:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:38,091 INFO L93 Difference]: Finished difference Result 107 states and 159 transitions. [2020-09-25 02:00:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:00:38,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-09-25 02:00:38,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:38,096 INFO L225 Difference]: With dead ends: 107 [2020-09-25 02:00:38,096 INFO L226 Difference]: Without dead ends: 101 [2020-09-25 02:00:38,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:00:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-09-25 02:00:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-09-25 02:00:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 02:00:38,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 153 transitions. [2020-09-25 02:00:38,129 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 153 transitions. Word has length 72 [2020-09-25 02:00:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:38,129 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 153 transitions. [2020-09-25 02:00:38,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:00:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 153 transitions. [2020-09-25 02:00:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 02:00:38,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:38,138 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:38,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:00:38,143 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1454565455, now seen corresponding path program 3 times [2020-09-25 02:00:38,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:38,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693224729] [2020-09-25 02:00:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:38,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:38,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 02:00:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:00:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 02:00:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:00:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 02:00:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:43,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:43,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:43,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:43,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:43,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:00:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:43,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:44,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:44,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:44,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:47,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:48,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 02:00:48,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:00:48,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 02:00:48,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:00:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-25 02:00:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 02:00:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:48,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:49,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 02:00:53,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:00:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 02:00:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 02:00:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:00:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:53,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 02:00:53,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 02:00:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:00:53,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:53,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:53,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 02:00:53,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 02:00:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 02:00:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:53,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 02:00:53,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:00:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:00:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:53,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:53,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:00:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:53,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:53,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:53,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:53,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:00:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:00:53,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 02:00:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:54,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 02:00:54,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:00:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:00:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:54,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:00:54,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 02:00:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:54,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:54,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:00:54,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:54,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 02:00:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:00:54,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 02:00:54,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 02:00:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 02:00:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:00:54,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 02:00:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:00:54,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:00:54,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:00:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:00:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:54,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:54,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:54,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:54,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:54,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 158 proven. 231 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2020-09-25 02:00:54,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693224729] [2020-09-25 02:00:54,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:00:54,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:00:54,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049035085] [2020-09-25 02:00:54,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:00:54,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:54,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:00:54,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:00:54,428 INFO L87 Difference]: Start difference. First operand 101 states and 153 transitions. Second operand 15 states. [2020-09-25 02:00:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:55,047 INFO L93 Difference]: Finished difference Result 300 states and 626 transitions. [2020-09-25 02:00:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 02:00:55,048 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 179 [2020-09-25 02:00:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:55,061 INFO L225 Difference]: With dead ends: 300 [2020-09-25 02:00:55,062 INFO L226 Difference]: Without dead ends: 212 [2020-09-25 02:00:55,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=795, Unknown=0, NotChecked=0, Total=992 [2020-09-25 02:00:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-25 02:00:55,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 170. [2020-09-25 02:00:55,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 02:00:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 335 transitions. [2020-09-25 02:00:55,105 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 335 transitions. Word has length 179 [2020-09-25 02:00:55,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:55,110 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 335 transitions. [2020-09-25 02:00:55,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 02:00:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 335 transitions. [2020-09-25 02:00:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 02:00:55,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:55,118 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:00:55,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:00:55,121 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:55,122 INFO L82 PathProgramCache]: Analyzing trace with hash -951220167, now seen corresponding path program 4 times [2020-09-25 02:00:55,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:55,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978620432] [2020-09-25 02:00:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:55,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:56,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:00,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 02:01:00,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 02:01:00,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 02:01:00,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-09-25 02:01:00,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:00,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:01:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:01:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:01:00,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:00,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:01:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:00,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:02,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:05,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:05,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:05,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:09,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 02:01:10,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 02:01:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 02:01:10,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:01:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 02:01:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:01:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 02:01:10,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:01:10,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 02:01:10,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:01:10,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 02:01:10,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:01:10,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 02:01:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 02:01:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:01:10,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:01:10,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:01:10,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:01:10,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:01:10,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:01:10,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:01:10,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:01:10,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:01:10,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 02:01:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:01:10,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:11,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:12,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:14,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:14,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:01:14,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking...