/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=SHALLOWEST --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-simple/fibo_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:47:43,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:47:43,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:47:43,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:47:43,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:47:43,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:47:43,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:47:43,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:47:43,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:47:43,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:47:43,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:47:43,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:47:43,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:47:43,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:47:43,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:47:43,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:47:43,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:47:43,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:47:43,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:47:43,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:47:43,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:47:43,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:47:43,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:47:43,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:47:43,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:47:43,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:47:43,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:47:43,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:47:43,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:47:43,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:47:43,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:47:43,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:47:43,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:47:43,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:47:43,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:47:43,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:47:43,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:47:43,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:47:43,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:47:43,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:47:43,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:47:43,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:47:43,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:47:43,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:47:43,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:47:43,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:47:43,152 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:47:43,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:47:43,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:47:43,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:47:43,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:47:43,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:47:43,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:47:43,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:47:43,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:47:43,157 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:47:43,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:47:43,157 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:47:43,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:47:43,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:47:43,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:47:43,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:47:43,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:47:43,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:47:43,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:47:43,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:47:43,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:47:43,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:47:43,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:47:43,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:47:43,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:47:43,160 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:47:43,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:47:43,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:47:43,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:47:43,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:47:43,616 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:47:43,617 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-09-24 23:47:43,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0ef0c5a/61167d9a69ac4e96825359228cb77bc7/FLAG1bff7e99e [2020-09-24 23:47:44,195 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:47:44,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-2.c [2020-09-24 23:47:44,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0ef0c5a/61167d9a69ac4e96825359228cb77bc7/FLAG1bff7e99e [2020-09-24 23:47:44,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0ef0c5a/61167d9a69ac4e96825359228cb77bc7 [2020-09-24 23:47:44,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:47:44,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:47:44,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:47:44,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:47:44,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:47:44,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdd711c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44, skipping insertion in model container [2020-09-24 23:47:44,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:47:44,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:47:44,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:47:44,868 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:47:44,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:47:44,898 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:47:44,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44 WrapperNode [2020-09-24 23:47:44,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:47:44,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:47:44,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:47:44,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:47:44,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:44,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:45,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... [2020-09-24 23:47:45,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:47:45,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:47:45,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:47:45,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:47:45,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:47:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:47:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:47:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:47:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:47:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:47:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:47:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:47:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:47:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:47:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:47:45,304 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:47:45,304 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:47:45,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:47:45 BoogieIcfgContainer [2020-09-24 23:47:45,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:47:45,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:47:45,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:47:45,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:47:45,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:47:44" (1/3) ... [2020-09-24 23:47:45,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be0199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:47:45, skipping insertion in model container [2020-09-24 23:47:45,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:44" (2/3) ... [2020-09-24 23:47:45,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be0199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:47:45, skipping insertion in model container [2020-09-24 23:47:45,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:47:45" (3/3) ... [2020-09-24 23:47:45,350 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-2.c [2020-09-24 23:47:45,375 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:47:45,396 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:47:45,417 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:47:45,445 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:47:45,446 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:47:45,446 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:47:45,446 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:47:45,446 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:47:45,446 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:47:45,447 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:47:45,447 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:47:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:47:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:47:45,473 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:45,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:45,475 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:45,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:47:45,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:45,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370036467] [2020-09-24 23:47:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:47:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 23:47:45,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:45,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:47:45,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:47:45,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:45,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:45,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:47:45,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:45,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:45,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:45,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:47:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:47:45,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370036467] [2020-09-24 23:47:45,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:47:45,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:47:45,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732681795] [2020-09-24 23:47:45,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:47:45,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:45,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:47:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:47:45,999 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:47:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:46,099 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:47:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:47:46,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:47:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:46,114 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:47:46,115 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:47:46,119 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 [2020-09-24 23:47:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:47:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:47:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:47:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:47:46,174 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:47:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:46,175 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:47:46,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:47:46,175 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:47:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:47:46,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:46,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:46,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:47:46,179 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:46,179 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:47:46,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:46,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169007755] [2020-09-24 23:47:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:46,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:46,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:47:46,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:46,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 23:47:46,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:46,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:46,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:46,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:46,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:46,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:47:46,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:46,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:46,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:47:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:46,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:46,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:46,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:47:46,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:46,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:47:46,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169007755] [2020-09-24 23:47:46,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:47:46,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:47:46,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793774799] [2020-09-24 23:47:46,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:47:46,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:46,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:47:46,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:47:46,419 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:47:46,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:46,480 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:47:46,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:47:46,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:47:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:46,482 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:47:46,483 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:47:46,484 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 [2020-09-24 23:47:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:47:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:47:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:47:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:47:46,493 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:47:46,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:46,493 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:47:46,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:47:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:47:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:47:46,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:46,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:46,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:47:46,496 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:46,497 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:47:46,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:46,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349780840] [2020-09-24 23:47:46,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:46,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:48,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:47:48,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1762 [2020-09-24 23:47:48,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:48,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:47:48,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:48,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:48,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:48,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:48,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:48,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:47:48,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:48,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:48,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 23:47:48,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:48,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:48,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:48,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 23:47:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:47:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:48,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:48,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:48,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:47:48,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:48,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:48,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:48,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:47:48,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:48,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:48,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:47:48,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349780840] [2020-09-24 23:47:48,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:48,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:47:48,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771570763] [2020-09-24 23:47:48,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:48,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:48,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:48,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:48,620 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:47:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:48,772 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:47:48,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:47:48,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:47:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:48,775 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:47:48,775 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:47:48,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:47:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:47:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:47:48,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:47:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:47:48,786 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:47:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:48,787 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:47:48,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:47:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:47:48,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:48,789 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:48,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:47:48,790 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:48,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:48,790 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:47:48,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:48,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748231900] [2020-09-24 23:47:48,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:48,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:48,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:47:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:47:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-09-24 23:47:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:47:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:50,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:47:50,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-09-24 23:47:50,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:51,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:51,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:51,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 23:47:51,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:51,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:51,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:51,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:51,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:51,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:47:51,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:51,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:51,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:47:51,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748231900] [2020-09-24 23:47:51,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:51,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:47:51,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665559995] [2020-09-24 23:47:51,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:51,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:51,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:51,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:51,082 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 23:47:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:51,238 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-24 23:47:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:47:51,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 23:47:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:51,242 INFO L225 Difference]: With dead ends: 52 [2020-09-24 23:47:51,242 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:47:51,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:47:51,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:47:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-24 23:47:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:47:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:47:51,264 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-24 23:47:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:51,265 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:47:51,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:47:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 23:47:51,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:51,275 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:51,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:47:51,275 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:51,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:51,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-24 23:47:51,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:51,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683182964] [2020-09-24 23:47:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:51,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:47:56,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 23:47:56,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 23:47:56,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:56,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:47:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:56,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:56,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:56,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:56,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:56,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:47:56,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:56,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:56,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:00,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:01,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 23:48:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:48:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 23:48:01,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:48:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:48:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:48:01,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:48:01,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:01,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:01,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:48:01,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:48:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 23:48:01,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:01,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:48:01,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:01,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:01,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:01,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:48:01,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:01,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:48:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:01,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:01,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:01,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:48:01,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:01,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:01,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:01,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:48:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:01,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:02,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:48:03,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:48:03,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1432 [2020-09-24 23:48:03,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:03,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:48:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:48:03,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:03,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 23:48:03,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:48:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:03,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:03,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:48:03,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:48:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:03,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:03,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:48:03,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:03,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:48:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:03,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:48:03,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:03,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:03,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 65 proven. 73 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-24 23:48:03,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683182964] [2020-09-24 23:48:03,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:03,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:48:03,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884283239] [2020-09-24 23:48:03,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:48:03,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:03,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:48:03,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:48:03,638 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 15 states. [2020-09-24 23:48:03,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:03,917 INFO L93 Difference]: Finished difference Result 87 states and 126 transitions. [2020-09-24 23:48:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:48:03,918 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 84 [2020-09-24 23:48:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:03,920 INFO L225 Difference]: With dead ends: 87 [2020-09-24 23:48:03,920 INFO L226 Difference]: Without dead ends: 57 [2020-09-24 23:48:03,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:48:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-24 23:48:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2020-09-24 23:48:03,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-24 23:48:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2020-09-24 23:48:03,943 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 84 [2020-09-24 23:48:03,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:03,943 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2020-09-24 23:48:03,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:48:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2020-09-24 23:48:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 23:48:03,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:03,946 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:03,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:48:03,947 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:03,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-24 23:48:03,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:03,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351081108] [2020-09-24 23:48:03,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:08,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:48:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:08,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:08,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:08,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:08,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:08,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:08,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:08,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:08,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:08,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:10,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:10,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:13,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:13,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:13,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:48:13,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 23:48:13,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:48:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:48:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:48:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:48:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:14,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:14,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:14,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:48:14,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:14,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:14,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:14,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:14,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:14,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:14,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:48:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:48:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 23:48:19,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:48:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:19,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:20,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:20,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:20,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:48:20,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-09-24 23:48:20,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:20,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:20,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:20,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:48:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:20,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:20,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:20,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:20,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:48:20,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:20,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:20,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:20,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:20,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:48:20,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:20,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:48:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:20,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:20,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:20,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:20,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:20,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:20,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:20,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:20,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 83 proven. 90 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-09-24 23:48:20,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351081108] [2020-09-24 23:48:20,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:20,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:48:20,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810366467] [2020-09-24 23:48:20,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:48:20,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:20,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:48:20,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:48:20,706 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand 13 states. [2020-09-24 23:48:21,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:21,058 INFO L93 Difference]: Finished difference Result 111 states and 162 transitions. [2020-09-24 23:48:21,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:48:21,059 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-09-24 23:48:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:21,065 INFO L225 Difference]: With dead ends: 111 [2020-09-24 23:48:21,065 INFO L226 Difference]: Without dead ends: 69 [2020-09-24 23:48:21,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:48:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-24 23:48:21,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-24 23:48:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-24 23:48:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2020-09-24 23:48:21,091 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 89 [2020-09-24 23:48:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:21,091 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2020-09-24 23:48:21,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:48:21,092 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2020-09-24 23:48:21,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 23:48:21,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:21,094 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:21,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:48:21,094 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:21,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:21,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 1 times [2020-09-24 23:48:21,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:21,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268216694] [2020-09-24 23:48:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:21,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:21,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:22,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:48:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:26,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:26,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:26,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:26,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:48:26,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:26,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:26,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:26,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:26,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:26,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:26,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:26,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:27,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:28,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:29,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:31,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:31,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 23:48:31,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:48:31,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:31,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:31,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:31,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:31,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:32,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:48:32,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:48:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-24 23:48:32,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:32,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:48:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:32,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:32,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:48:32,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:32,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:32,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:32,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:32,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:48:32,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:32,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:32,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:32,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:32,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:32,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:32,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:48:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:32,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:32,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:32,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:32,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:32,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:32,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 23:48:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:32,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:32,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:33,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:33,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:33,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:33,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:33,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:34,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:34,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:34,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 23:48:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:48:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:37,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:37,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:40,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:48:40,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3411 [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:48:40,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:40,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:40,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:40,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:48:41,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:48:41,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 23:48:41,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:48:41,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:41,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:48:41,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:48:41,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:48:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 23:48:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:41,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:41,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:41,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:41,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:41,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:48:41,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:41,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:41,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 164 proven. 174 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-09-24 23:48:41,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268216694] [2020-09-24 23:48:41,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:41,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 23:48:41,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497782963] [2020-09-24 23:48:41,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:48:41,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:41,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:48:41,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:48:41,328 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 13 states.