/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 --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 interpolation-heuristic=FIRST --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/id_o100.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:21:46,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:21:46,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:21:46,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:21:46,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:21:46,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:21:46,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:21:46,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:21:46,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:21:46,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:21:46,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:21:46,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:21:46,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:21:46,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:21:46,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:21:46,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:21:46,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:21:46,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:21:46,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:21:46,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:21:46,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:21:46,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:21:46,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:21:46,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:21:46,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:21:46,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:21:46,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:21:46,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:21:46,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:21:46,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:21:46,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:21:46,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:21:46,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:21:46,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:21:46,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:21:46,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:21:46,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:21:46,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:21:46,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:21:46,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:21:46,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:21:46,875 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 [2020-09-21 11:21:46,901 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:21:46,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:21:46,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:21:46,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:21:46,903 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:21:46,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:21:46,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:21:46,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:21:46,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:21:46,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:21:46,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:21:46,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:21:46,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:21:46,905 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:21:46,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:21:46,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:21:46,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:21:46,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:21:46,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:21:46,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:21:46,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:21:46,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:21:46,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:21:46,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:21:46,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:21:46,907 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:21:46,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:21:46,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:21:46,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:21:46,908 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:21:47,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:21:47,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:21:47,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:21:47,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:21:47,426 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:21:47,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-21 11:21:47,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fd755efc/2057e5c1a5284bd19751837db2d39282/FLAG17b281a73 [2020-09-21 11:21:48,070 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:21:48,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o100.c [2020-09-21 11:21:48,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fd755efc/2057e5c1a5284bd19751837db2d39282/FLAG17b281a73 [2020-09-21 11:21:48,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0fd755efc/2057e5c1a5284bd19751837db2d39282 [2020-09-21 11:21:48,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:21:48,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:21:48,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:21:48,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:21:48,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:21:48,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee2931e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48, skipping insertion in model container [2020-09-21 11:21:48,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:21:48,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:21:48,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:21:48,696 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:21:48,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:21:48,734 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:21:48,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48 WrapperNode [2020-09-21 11:21:48,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:21:48,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:21:48,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:21:48,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:21:48,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (1/1) ... [2020-09-21 11:21:48,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:21:48,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:21:48,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:21:48,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:21:48,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (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 [2020-09-21 11:21:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:21:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:21:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-21 11:21:48,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:21:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-21 11:21:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:21:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-21 11:21:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:21:48,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:21:48,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:21:49,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:21:49,134 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:21:49,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:21:49 BoogieIcfgContainer [2020-09-21 11:21:49,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:21:49,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:21:49,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:21:49,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:21:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:21:48" (1/3) ... [2020-09-21 11:21:49,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e41c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:21:49, skipping insertion in model container [2020-09-21 11:21:49,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:21:48" (2/3) ... [2020-09-21 11:21:49,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e41c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:21:49, skipping insertion in model container [2020-09-21 11:21:49,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:21:49" (3/3) ... [2020-09-21 11:21:49,148 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o100.c [2020-09-21 11:21:49,160 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:21:49,171 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:21:49,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:21:49,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:21:49,221 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:21:49,221 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:21:49,222 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:21:49,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:21:49,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:21:49,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:21:49,222 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:21:49,246 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-09-21 11:21:49,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:21:49,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:49,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:49,256 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:49,263 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-09-21 11:21:49,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:49,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040793775] [2020-09-21 11:21:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:21:49,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:21:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:21:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:21:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:49,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:49,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:49,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:49,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:21:49,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040793775] [2020-09-21 11:21:49,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:21:49,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:21:49,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618231048] [2020-09-21 11:21:49,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:21:49,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:49,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:21:49,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:21:49,625 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-09-21 11:21:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:49,691 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-09-21 11:21:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:21:49,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:21:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:49,709 INFO L225 Difference]: With dead ends: 32 [2020-09-21 11:21:49,710 INFO L226 Difference]: Without dead ends: 18 [2020-09-21 11:21:49,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:21:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-21 11:21:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-09-21 11:21:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-21 11:21:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-09-21 11:21:49,774 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-09-21 11:21:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:49,775 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-09-21 11:21:49,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:21:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-09-21 11:21:49,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-21 11:21:49,777 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:49,777 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:49,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:21:49,778 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-09-21 11:21:49,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:49,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937780745] [2020-09-21 11:21:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:21:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:21:49,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:21:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-21 11:21:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:21:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:49,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:49,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:49,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:49,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:49,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:49,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:49,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:49,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:49,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,022 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:50,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:50,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,091 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:50,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:50,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-21 11:21:50,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937780745] [2020-09-21 11:21:50,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:50,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:21:50,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348199513] [2020-09-21 11:21:50,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:21:50,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:50,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:21:50,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:21:50,151 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-09-21 11:21:50,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:50,207 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-09-21 11:21:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:21:50,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-21 11:21:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:50,209 INFO L225 Difference]: With dead ends: 25 [2020-09-21 11:21:50,210 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 11:21:50,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:21:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 11:21:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-09-21 11:21:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-21 11:21:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-09-21 11:21:50,223 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-09-21 11:21:50,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:50,224 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-09-21 11:21:50,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:21:50,225 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-09-21 11:21:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-21 11:21:50,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:50,227 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:50,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:21:50,228 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:50,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:50,228 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-09-21 11:21:50,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:50,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275228993] [2020-09-21 11:21:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 11:21:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-21 11:21:50,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:21:50,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-21 11:21:50,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:21:50,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,469 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,470 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,470 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:50,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:50,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:50,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:50,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:50,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,589 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:50,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:50,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:50,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 11:21:50,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275228993] [2020-09-21 11:21:50,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:50,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:21:50,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765946793] [2020-09-21 11:21:50,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:21:50,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:50,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:21:50,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:21:50,656 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-09-21 11:21:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:50,698 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-09-21 11:21:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:21:50,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-21 11:21:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:50,700 INFO L225 Difference]: With dead ends: 28 [2020-09-21 11:21:50,700 INFO L226 Difference]: Without dead ends: 24 [2020-09-21 11:21:50,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:21:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-21 11:21:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-09-21 11:21:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-21 11:21:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-09-21 11:21:50,708 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-09-21 11:21:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:50,709 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-09-21 11:21:50,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:21:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-09-21 11:21:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-21 11:21:50,710 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:50,710 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:50,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:21:50,711 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:50,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-09-21 11:21:50,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:50,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959965854] [2020-09-21 11:21:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 11:21:50,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:21:50,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:21:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 11:21:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:21:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:50,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:21:50,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:50,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:50,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:50,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:21:50,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:50,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:50,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:50,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:50,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:50,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:50,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:50,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:50,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:50,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:50,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:50,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:50,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,062 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:51,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:21:51,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:51,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 11:21:51,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,128 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,129 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,129 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:51,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:51,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:51,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:21:51,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-21 11:21:51,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959965854] [2020-09-21 11:21:51,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:51,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 11:21:51,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586144946] [2020-09-21 11:21:51,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:21:51,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:51,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:21:51,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:21:51,167 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2020-09-21 11:21:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:51,235 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-21 11:21:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:21:51,236 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-09-21 11:21:51,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:51,237 INFO L225 Difference]: With dead ends: 31 [2020-09-21 11:21:51,237 INFO L226 Difference]: Without dead ends: 27 [2020-09-21 11:21:51,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:21:51,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-09-21 11:21:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-09-21 11:21:51,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-21 11:21:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-09-21 11:21:51,245 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-09-21 11:21:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:51,245 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-09-21 11:21:51,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:21:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-09-21 11:21:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 11:21:51,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:51,247 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:51,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:21:51,247 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:51,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:51,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-09-21 11:21:51,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:51,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745957784] [2020-09-21 11:21:51,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,300 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-21 11:21:51,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:21:51,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:21:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-21 11:21:51,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:21:51,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:51,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:51,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:51,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:51,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:51,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:51,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:51,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:51,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:51,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:51,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:51,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:21:51,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:51,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:51,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:51,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-21 11:21:51,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745957784] [2020-09-21 11:21:51,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:51,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:21:51,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133180646] [2020-09-21 11:21:51,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:21:51,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:51,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:21:51,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:21:51,685 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 13 states. [2020-09-21 11:21:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:51,788 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-21 11:21:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:21:51,789 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-09-21 11:21:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:51,790 INFO L225 Difference]: With dead ends: 34 [2020-09-21 11:21:51,791 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 11:21:51,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:21:51,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 11:21:51,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-21 11:21:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 11:21:51,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-21 11:21:51,798 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-09-21 11:21:51,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:51,798 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-21 11:21:51,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:21:51,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-21 11:21:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-21 11:21:51,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:51,800 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:51,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:21:51,801 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:51,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-09-21 11:21:51,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:51,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962892133] [2020-09-21 11:21:51,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:21:51,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:21:51,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:21:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-21 11:21:51,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:21:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:51,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:51,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:51,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:51,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:51,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:51,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:51,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:51,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:51,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:51,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:51,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:51,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,017 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:52,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-21 11:21:52,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:52,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:21:52,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:52,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:52,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:52,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:52,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:52,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:52,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:52,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:52,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-21 11:21:52,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962892133] [2020-09-21 11:21:52,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:52,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 11:21:52,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738906065] [2020-09-21 11:21:52,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 11:21:52,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:52,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 11:21:52,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:21:52,295 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-09-21 11:21:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:52,395 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-21 11:21:52,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:21:52,396 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2020-09-21 11:21:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:52,397 INFO L225 Difference]: With dead ends: 37 [2020-09-21 11:21:52,397 INFO L226 Difference]: Without dead ends: 33 [2020-09-21 11:21:52,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:21:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-21 11:21:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-21 11:21:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 11:21:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-21 11:21:52,404 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-09-21 11:21:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:52,405 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-21 11:21:52,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 11:21:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-21 11:21:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-21 11:21:52,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:52,406 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:52,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:21:52,407 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-09-21 11:21:52,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:52,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826486778] [2020-09-21 11:21:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,472 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,472 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-21 11:21:52,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:21:52,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-21 11:21:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 11:21:52,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-21 11:21:52,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:52,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:21:52,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:52,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 11:21:52,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:52,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 24 [2020-09-21 11:21:52,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:52,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:21:52,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,817 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:52,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:52,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:52,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:21:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:52,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:52,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:52,942 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:52,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:52,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:52,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:52,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:21:52,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:52,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:52,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,000 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:53,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:21:53,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:53,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-21 11:21:53,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826486778] [2020-09-21 11:21:53,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:53,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-21 11:21:53,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241466571] [2020-09-21 11:21:53,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-21 11:21:53,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:53,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-21 11:21:53,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:21:53,046 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 17 states. [2020-09-21 11:21:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:53,169 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-09-21 11:21:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 11:21:53,170 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-09-21 11:21:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:53,171 INFO L225 Difference]: With dead ends: 40 [2020-09-21 11:21:53,171 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 11:21:53,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:21:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 11:21:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-21 11:21:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 11:21:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-21 11:21:53,178 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-09-21 11:21:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:53,179 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-21 11:21:53,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-21 11:21:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-21 11:21:53,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-21 11:21:53,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:53,180 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:53,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:21:53,181 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-09-21 11:21:53,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:53,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755400609] [2020-09-21 11:21:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-21 11:21:53,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:21:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,310 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:53,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,376 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,377 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:53,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:21:53,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:53,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:21:53,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:53,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:53,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:21:53,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:53,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:21:53,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:53,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:53,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:53,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:53,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:53,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:53,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:21:53,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:53,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:53,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:53,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:53,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:53,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:53,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:53,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:53,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:53,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:21:53,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:53,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:53,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:53,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-21 11:21:53,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755400609] [2020-09-21 11:21:53,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:53,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-21 11:21:53,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469623430] [2020-09-21 11:21:53,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-21 11:21:53,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:53,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-21 11:21:53,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:21:53,998 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 19 states. [2020-09-21 11:21:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:54,159 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-21 11:21:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:21:54,160 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-09-21 11:21:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:54,162 INFO L225 Difference]: With dead ends: 43 [2020-09-21 11:21:54,162 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 11:21:54,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:21:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 11:21:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 11:21:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 11:21:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-09-21 11:21:54,169 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-09-21 11:21:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:54,169 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-09-21 11:21:54,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-21 11:21:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-09-21 11:21:54,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 11:21:54,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:54,171 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:54,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:21:54,171 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:54,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:54,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-09-21 11:21:54,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:54,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430091119] [2020-09-21 11:21:54,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-21 11:21:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-21 11:21:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 11:21:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,312 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:54,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:54,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:54,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:21:54,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:21:54,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:54,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:21:54,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:54,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:54,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,591 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:54,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:21:54,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:54,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:54,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,692 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:54,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:21:54,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,766 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,766 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:54,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:21:54,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:54,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:54,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:54,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:54,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:54,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:54,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:54,967 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:54,968 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:54,968 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:54,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:54,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:54,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:54,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:54,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:54,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:54,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:55,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:21:55,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:55,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 11:21:55,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430091119] [2020-09-21 11:21:55,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:55,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-21 11:21:55,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095501471] [2020-09-21 11:21:55,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-21 11:21:55,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:55,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-21 11:21:55,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:21:55,124 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 21 states. [2020-09-21 11:21:55,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:55,372 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-21 11:21:55,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:21:55,372 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 61 [2020-09-21 11:21:55,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:55,374 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:21:55,375 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 11:21:55,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-21 11:21:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 11:21:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-21 11:21:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 11:21:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-21 11:21:55,393 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-09-21 11:21:55,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:55,393 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-21 11:21:55,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-21 11:21:55,394 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-21 11:21:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:21:55,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:55,397 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:55,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:21:55,398 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-09-21 11:21:55,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:55,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900828159] [2020-09-21 11:21:55,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-21 11:21:55,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:21:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,578 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:55,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:55,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:55,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-21 11:21:55,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:55,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:21:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:21:55,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,834 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,834 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:55,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:21:55,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:21:55,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:55,951 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:55,951 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:55,951 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:55,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,052 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,053 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:56,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:21:56,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:56,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:56,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:21:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,222 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:56,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:21:56,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:56,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,302 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,302 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,303 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,303 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:56,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:21:56,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:56,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:56,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:21:56,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:56,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:56,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:56,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:21:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:56,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:56,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:56,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:56,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:56,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:21:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:56,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-21 11:21:56,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900828159] [2020-09-21 11:21:56,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:56,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-21 11:21:56,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647634864] [2020-09-21 11:21:56,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-21 11:21:56,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:56,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-21 11:21:56,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:21:56,587 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 23 states. [2020-09-21 11:21:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:56,837 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-21 11:21:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 11:21:56,837 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2020-09-21 11:21:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:56,842 INFO L225 Difference]: With dead ends: 49 [2020-09-21 11:21:56,842 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:21:56,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:21:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:21:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-21 11:21:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 11:21:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-09-21 11:21:56,860 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-09-21 11:21:56,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:56,866 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-09-21 11:21:56,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-21 11:21:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-09-21 11:21:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:21:56,868 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:56,868 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:56,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:21:56,868 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:56,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:56,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-09-21 11:21:56,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:56,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257527971] [2020-09-21 11:21:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:21:57,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-21 11:21:57,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-21 11:21:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-21 11:21:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 11:21:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:57,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:21:57,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:57,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:57,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:57,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-21 11:21:57,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:21:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:21:57,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,386 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,386 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:57,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:21:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:21:57,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:57,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:21:57,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:21:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:57,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:21:57,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:57,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:57,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:21:57,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 11:21:57,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:57,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:57,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:57,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:57,936 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:57,936 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:57,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:57,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:57,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:21:57,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:57,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:58,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:58,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:58,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,099 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,099 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:21:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:21:58,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:21:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:21:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:58,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,181 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,182 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,182 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:21:58,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:21:58,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:21:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:21:58,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:58,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:21:58,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:21:58,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:21:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:21:58,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:58,348 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-21 11:21:58,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257527971] [2020-09-21 11:21:58,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:21:58,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-21 11:21:58,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225537729] [2020-09-21 11:21:58,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-21 11:21:58,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:21:58,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-21 11:21:58,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:21:58,353 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 25 states. [2020-09-21 11:21:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:21:58,698 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-21 11:21:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-21 11:21:58,699 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2020-09-21 11:21:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:21:58,700 INFO L225 Difference]: With dead ends: 52 [2020-09-21 11:21:58,700 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 11:21:58,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-21 11:21:58,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 11:21:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-21 11:21:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 11:21:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-21 11:21:58,713 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-09-21 11:21:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:21:58,713 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-21 11:21:58,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-21 11:21:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-21 11:21:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 11:21:58,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:21:58,715 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:21:58,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:21:58,717 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:21:58,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:21:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-09-21 11:21:58,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:21:58,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108052728] [2020-09-21 11:21:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:21:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:21:58,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 11:21:58,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:21:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:58,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:21:58,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:21:58,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:58,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:21:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:21:59,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-21 11:21:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:21:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:21:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:21:59,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 11:21:59,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:21:59,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:21:59,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,339 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:21:59,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:21:59,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:21:59,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:21:59,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:21:59,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:21:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:21:59,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,582 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:21:59,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:21:59,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:21:59,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:21:59,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:21:59,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:21:59,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:21:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:21:59,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:21:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,781 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:21:59,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:21:59,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:21:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:21:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:21:59,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:21:59,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:21:59,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:21:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:21:59,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:21:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:21:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:21:59,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:21:59,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:21:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:21:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:21:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:21:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:21:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:21:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:21:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:21:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:21:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:00,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:00,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:00,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:00,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:00,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:00,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:00,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-21 11:22:00,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108052728] [2020-09-21 11:22:00,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:00,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-21 11:22:00,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454025319] [2020-09-21 11:22:00,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-21 11:22:00,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:00,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-21 11:22:00,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:22:00,290 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 27 states. [2020-09-21 11:22:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:00,598 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-21 11:22:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-21 11:22:00,599 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-09-21 11:22:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:00,600 INFO L225 Difference]: With dead ends: 55 [2020-09-21 11:22:00,600 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 11:22:00,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-21 11:22:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 11:22:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-21 11:22:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 11:22:00,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-21 11:22:00,616 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-09-21 11:22:00,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:00,616 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-21 11:22:00,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-21 11:22:00,617 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-21 11:22:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-21 11:22:00,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:00,618 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:00,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:22:00,619 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:00,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:00,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-09-21 11:22:00,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:00,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109866699] [2020-09-21 11:22:00,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-21 11:22:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-21 11:22:00,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-21 11:22:00,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-21 11:22:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 11:22:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:00,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:00,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:00,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:00,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:00,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:00,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:00,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:00,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:00,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:00,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 11:22:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,155 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:01,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-21 11:22:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:01,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:22:01,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:01,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:01,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:01,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:22:01,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:01,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,632 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,632 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:01,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:22:01,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:01,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:01,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:22:01,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:01,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:01,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:01,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:22:01,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:01,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:01,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:01,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:01,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:01,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:01,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:01,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:01,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:02,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:02,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:02,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:22:02,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:02,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:02,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:02,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:02,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:02,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:02,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:02,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:02,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:02,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:02,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:02,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:02,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:02,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-21 11:22:02,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109866699] [2020-09-21 11:22:02,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:02,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-21 11:22:02,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815611542] [2020-09-21 11:22:02,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-21 11:22:02,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:02,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-21 11:22:02,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:22:02,563 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 29 states. [2020-09-21 11:22:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:02,959 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-09-21 11:22:02,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-21 11:22:02,959 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 85 [2020-09-21 11:22:02,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:02,962 INFO L225 Difference]: With dead ends: 58 [2020-09-21 11:22:02,962 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 11:22:02,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-21 11:22:02,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 11:22:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-21 11:22:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 11:22:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-21 11:22:02,974 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-09-21 11:22:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:02,974 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-21 11:22:02,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-21 11:22:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-21 11:22:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-21 11:22:02,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:02,975 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:02,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:22:02,976 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:02,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:02,976 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-09-21 11:22:02,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:02,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424139236] [2020-09-21 11:22:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-21 11:22:03,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-21 11:22:03,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:03,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:03,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:03,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:03,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-21 11:22:03,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:03,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:03,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-21 11:22:03,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,695 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,695 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,696 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,696 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:03,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-21 11:22:03,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:03,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:03,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:03,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 11:22:03,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:03,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:03,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:03,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:03,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:03,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:03,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:03,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:03,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:03,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:22:03,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:03,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:03,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:03,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:04,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,093 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,093 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:04,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:22:04,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:04,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:04,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:04,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:22:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:04,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:22:04,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:04,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:04,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-21 11:22:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,539 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,539 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:04,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:22:04,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:04,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:04,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:04,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:22:04,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,715 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,715 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:04,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:04,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:04,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:04,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,814 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:04,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:04,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:04,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:04,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:04,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:04,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:04,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:04,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:04,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:04,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:04,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:04,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-21 11:22:04,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424139236] [2020-09-21 11:22:04,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:04,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-21 11:22:04,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126458033] [2020-09-21 11:22:04,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-21 11:22:04,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:05,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-21 11:22:05,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:22:05,001 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 31 states. [2020-09-21 11:22:05,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:05,407 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-09-21 11:22:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-21 11:22:05,408 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 91 [2020-09-21 11:22:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:05,409 INFO L225 Difference]: With dead ends: 61 [2020-09-21 11:22:05,410 INFO L226 Difference]: Without dead ends: 57 [2020-09-21 11:22:05,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:22:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-21 11:22:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-09-21 11:22:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-09-21 11:22:05,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-09-21 11:22:05,425 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-09-21 11:22:05,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:05,425 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-09-21 11:22:05,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-21 11:22:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-09-21 11:22:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 11:22:05,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:05,427 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:05,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 11:22:05,427 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:05,427 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-09-21 11:22:05,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:05,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283176619] [2020-09-21 11:22:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 11:22:05,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-21 11:22:05,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-21 11:22:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-21 11:22:05,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 11:22:05,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:05,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:05,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:05,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:05,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:05,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:05,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:05,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:05,855 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:05,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:05,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 11:22:05,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:05,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:05,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:05,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:05,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:06,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-21 11:22:06,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:06,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-21 11:22:06,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,375 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,375 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:06,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:22:06,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:06,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:06,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:06,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:22:06,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:06,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,651 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,652 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:06,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:22:06,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:06,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,775 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:06,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:22:06,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:06,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:06,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:06,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:06,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:06,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:06,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:06,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:22:06,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:06,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:06,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:06,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:22:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:07,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:07,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:22:07,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:07,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:07,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:22:07,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,344 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,345 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:07,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:22:07,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:07,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:07,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:07,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:22:07,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:07,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:07,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:07,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:07,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:07,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:07,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:07,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:07,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:07,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:07,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:07,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:07,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:07,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:07,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:07,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-09-21 11:22:07,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283176619] [2020-09-21 11:22:07,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:07,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-09-21 11:22:07,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985809402] [2020-09-21 11:22:07,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-21 11:22:07,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:07,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-21 11:22:07,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:22:07,866 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 33 states. [2020-09-21 11:22:08,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:08,355 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-21 11:22:08,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-21 11:22:08,355 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 97 [2020-09-21 11:22:08,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:08,357 INFO L225 Difference]: With dead ends: 64 [2020-09-21 11:22:08,357 INFO L226 Difference]: Without dead ends: 60 [2020-09-21 11:22:08,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-09-21 11:22:08,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-21 11:22:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-09-21 11:22:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-09-21 11:22:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-09-21 11:22:08,364 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-09-21 11:22:08,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:08,365 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-09-21 11:22:08,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-21 11:22:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-09-21 11:22:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-21 11:22:08,366 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:08,366 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:08,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 11:22:08,367 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:08,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-09-21 11:22:08,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:08,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2111178552] [2020-09-21 11:22:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,547 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:22:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:08,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:08,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:08,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:08,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-21 11:22:08,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:08,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:08,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:08,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:08,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:08,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:08,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 11:22:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,132 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:09,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-21 11:22:09,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:09,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-21 11:22:09,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:22:09,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:09,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:09,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:22:09,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:09,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:09,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:22:09,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:09,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:09,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:09,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:22:09,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:09,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:09,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:09,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:09,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:09,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:09,955 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:09,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:09,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:09,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:09,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:10,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:22:10,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:10,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,172 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,172 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:10,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:22:10,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:10,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:10,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:10,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:10,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:10,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,605 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:10,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:10,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:10,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:10,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:10,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:10,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:10,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:10,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:10,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:10,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:10,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:10,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:10,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-09-21 11:22:10,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2111178552] [2020-09-21 11:22:10,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:10,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-09-21 11:22:10,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404874998] [2020-09-21 11:22:10,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-21 11:22:10,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:10,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-21 11:22:10,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 11:22:10,838 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-09-21 11:22:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:11,509 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-21 11:22:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-21 11:22:11,509 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-09-21 11:22:11,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:11,510 INFO L225 Difference]: With dead ends: 67 [2020-09-21 11:22:11,511 INFO L226 Difference]: Without dead ends: 63 [2020-09-21 11:22:11,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 11:22:11,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-21 11:22:11,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-21 11:22:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-21 11:22:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-21 11:22:11,519 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-09-21 11:22:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:11,520 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-21 11:22:11,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-21 11:22:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-21 11:22:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 11:22:11,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:11,524 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:11,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 11:22:11,524 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:11,525 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-09-21 11:22:11,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:11,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838963633] [2020-09-21 11:22:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,720 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,721 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,721 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,721 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-21 11:22:11,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:11,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:11,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:11,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:11,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:11,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:11,962 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:11,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:11,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:11,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:11,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,202 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,203 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,203 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:12,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-21 11:22:12,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:12,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:12,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-21 11:22:12,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:12,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:12,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 11:22:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:12,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:12,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,792 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:12,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 11:22:12,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:12,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:12,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:12,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:12,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:12,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:12,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:12,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:12,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-21 11:22:12,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:12,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:12,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:12,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:13,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:13,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:22:13,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:13,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:13,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:13,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:22:13,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:13,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:13,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:13,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:22:13,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:13,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:13,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:13,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:13,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:13,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:13,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:13,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:13,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:13,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:13,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:13,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:13,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:14,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:22:14,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:14,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:14,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:14,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:14,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:14,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:14,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:14,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:14,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:14,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:14,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:14,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:14,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:14,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:14,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-09-21 11:22:14,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838963633] [2020-09-21 11:22:14,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:14,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-09-21 11:22:14,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374899233] [2020-09-21 11:22:14,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-21 11:22:14,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:14,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-21 11:22:14,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:22:14,446 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 37 states. [2020-09-21 11:22:15,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:15,179 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-09-21 11:22:15,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-21 11:22:15,180 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 109 [2020-09-21 11:22:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:15,181 INFO L225 Difference]: With dead ends: 70 [2020-09-21 11:22:15,181 INFO L226 Difference]: Without dead ends: 66 [2020-09-21 11:22:15,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-09-21 11:22:15,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-21 11:22:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-21 11:22:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-21 11:22:15,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-21 11:22:15,190 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-09-21 11:22:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:15,190 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-21 11:22:15,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-21 11:22:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-21 11:22:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-21 11:22:15,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:15,192 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:15,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 11:22:15,192 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:15,193 INFO L82 PathProgramCache]: Analyzing trace with hash -464475409, now seen corresponding path program 17 times [2020-09-21 11:22:15,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:15,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998417080] [2020-09-21 11:22:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,406 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 11:22:15,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-21 11:22:15,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-21 11:22:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-09-21 11:22:15,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-21 11:22:15,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:15,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:15,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:22:15,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:15,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:16,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-21 11:22:16,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:16,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:16,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:16,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:16,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-21 11:22:16,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:16,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:16,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:16,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-21 11:22:16,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:16,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:16,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:16,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:16,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:16,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:16,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:16,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-21 11:22:16,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:16,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:16,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:22:17,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:17,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:17,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:22:17,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:17,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:22:17,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:17,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:17,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:22:17,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:17,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:17,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:17,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:17,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:17,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:17,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:17,932 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:17,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:17,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,053 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,053 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,054 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,054 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:18,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:18,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:18,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:18,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:18,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:18,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:18,308 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:18,308 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:18,308 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:18,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:18,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:18,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:18,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:18,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:18,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-09-21 11:22:18,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998417080] [2020-09-21 11:22:18,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:18,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-09-21 11:22:18,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819214224] [2020-09-21 11:22:18,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-09-21 11:22:18,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:18,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-09-21 11:22:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-09-21 11:22:18,444 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 39 states. [2020-09-21 11:22:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:19,249 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-09-21 11:22:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-21 11:22:19,249 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 115 [2020-09-21 11:22:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:19,250 INFO L225 Difference]: With dead ends: 73 [2020-09-21 11:22:19,250 INFO L226 Difference]: Without dead ends: 69 [2020-09-21 11:22:19,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-09-21 11:22:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-21 11:22:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-21 11:22:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-21 11:22:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-09-21 11:22:19,257 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-09-21 11:22:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:19,257 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-09-21 11:22:19,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-09-21 11:22:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-09-21 11:22:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-21 11:22:19,259 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:19,259 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:19,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-21 11:22:19,259 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:19,260 INFO L82 PathProgramCache]: Analyzing trace with hash 130115453, now seen corresponding path program 18 times [2020-09-21 11:22:19,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:19,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298107054] [2020-09-21 11:22:19,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-21 11:22:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-21 11:22:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-21 11:22:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:19,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 11:22:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:19,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:19,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:19,889 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:19,889 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:22:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:19,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:20,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 11:22:20,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:20,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:20,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:22:20,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:22:20,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:20,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:20,938 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:20,939 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:20,939 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:20,940 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:20,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:20,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-21 11:22:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:21,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 11:22:21,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:21,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,366 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:21,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 11:22:21,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:21,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:22:21,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:21,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,627 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 11:22:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:21,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:22:21,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:21,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:21,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:21,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:21,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:21,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:22:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:21,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,007 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,007 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:22,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:22,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:22,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:22,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:22,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:22,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:22,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:22,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:22,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:22:22,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:22,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:22,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:22,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:22,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:22,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:22,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:22,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:22,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:22,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:22,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:22:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-09-21 11:22:22,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298107054] [2020-09-21 11:22:22,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:22,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-09-21 11:22:22,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119810310] [2020-09-21 11:22:22,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-21 11:22:22,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-21 11:22:22,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:22:22,565 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 41 states. [2020-09-21 11:22:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:23,445 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-09-21 11:22:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-21 11:22:23,446 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 121 [2020-09-21 11:22:23,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:23,447 INFO L225 Difference]: With dead ends: 76 [2020-09-21 11:22:23,448 INFO L226 Difference]: Without dead ends: 72 [2020-09-21 11:22:23,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-09-21 11:22:23,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-21 11:22:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-21 11:22:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 11:22:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-09-21 11:22:23,455 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-09-21 11:22:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:23,455 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-09-21 11:22:23,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-21 11:22:23,455 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-09-21 11:22:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-21 11:22:23,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:23,457 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:23,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-21 11:22:23,457 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:23,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:23,458 INFO L82 PathProgramCache]: Analyzing trace with hash -2010955025, now seen corresponding path program 19 times [2020-09-21 11:22:23,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:23,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375320580] [2020-09-21 11:22:23,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:22:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,739 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,739 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:23,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:23,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:23,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:23,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:23,933 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-21 11:22:23,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:22:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:23,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-21 11:22:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:24,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-21 11:22:24,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 11:22:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-21 11:22:24,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:22:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:24,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-21 11:22:24,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:24,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-21 11:22:24,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:24,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:24,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:24,925 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:24,925 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:24,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:24,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:24,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:22:24,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-21 11:22:25,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,301 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,301 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,301 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:25,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-21 11:22:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:25,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:25,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:25,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:25,891 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:25,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:25,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:25,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:22:25,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:25,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:25,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:25,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:25,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,023 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,023 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:26,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:26,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:22:26,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:26,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:26,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:26,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 11:22:26,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:26,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:26,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:22:26,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,565 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:26,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:22:26,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:26,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,699 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,700 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,700 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:26,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:26,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:26,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:26,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:26,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:26,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:22:26,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:26,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:26,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:26,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:26,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:26,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:26,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:26,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:26,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:26,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:26,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:26,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:26,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-09-21 11:22:27,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375320580] [2020-09-21 11:22:27,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:27,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-09-21 11:22:27,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685581722] [2020-09-21 11:22:27,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-09-21 11:22:27,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:27,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-09-21 11:22:27,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-09-21 11:22:27,158 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 43 states. [2020-09-21 11:22:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:28,177 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-21 11:22:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-21 11:22:28,178 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 127 [2020-09-21 11:22:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:28,179 INFO L225 Difference]: With dead ends: 79 [2020-09-21 11:22:28,179 INFO L226 Difference]: Without dead ends: 75 [2020-09-21 11:22:28,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-09-21 11:22:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-21 11:22:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-09-21 11:22:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-21 11:22:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-09-21 11:22:28,185 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-09-21 11:22:28,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:28,186 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-09-21 11:22:28,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-09-21 11:22:28,186 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-09-21 11:22:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-21 11:22:28,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:28,187 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:28,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-21 11:22:28,188 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:28,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:28,188 INFO L82 PathProgramCache]: Analyzing trace with hash -799288067, now seen corresponding path program 20 times [2020-09-21 11:22:28,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:28,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570963149] [2020-09-21 11:22:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,448 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,449 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-21 11:22:28,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-21 11:22:28,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-21 11:22:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-21 11:22:28,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:22:28,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:22:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-21 11:22:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-21 11:22:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:28,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-21 11:22:28,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:22:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-21 11:22:28,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:29,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:29,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-21 11:22:29,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 11:22:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:29,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,517 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:29,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-21 11:22:29,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:29,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:22:29,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:29,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:29,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:29,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:29,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:29,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:29,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:29,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:29,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:29,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:29,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-21 11:22:30,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:30,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:30,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-21 11:22:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:30,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:30,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:30,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-21 11:22:30,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:30,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-21 11:22:30,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:30,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:30,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:30,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:30,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:30,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:30,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:30,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 11:22:30,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:30,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,103 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:31,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:22:31,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:31,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:31,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:22:31,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:31,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:31,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:31,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:31,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:31,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,541 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:31,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 11:22:31,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:31,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:22:31,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:31,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,819 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,819 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,820 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:31,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:22:31,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:31,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:31,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:31,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:31,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:31,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:31,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:31,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:22:31,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:31,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:32,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,105 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:32,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:32,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:32,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:32,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:32,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:32,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:32,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:32,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:32,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:32,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:32,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:32,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-09-21 11:22:32,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570963149] [2020-09-21 11:22:32,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:32,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-09-21 11:22:32,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688756216] [2020-09-21 11:22:32,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-21 11:22:32,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:32,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-21 11:22:32,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-09-21 11:22:32,458 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 45 states. [2020-09-21 11:22:33,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:33,547 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-09-21 11:22:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-21 11:22:33,548 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 133 [2020-09-21 11:22:33,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:22:33,550 INFO L225 Difference]: With dead ends: 82 [2020-09-21 11:22:33,550 INFO L226 Difference]: Without dead ends: 78 [2020-09-21 11:22:33,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-09-21 11:22:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-21 11:22:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-21 11:22:33,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-21 11:22:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-21 11:22:33,555 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 133 [2020-09-21 11:22:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:22:33,556 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-21 11:22:33,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-21 11:22:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-21 11:22:33,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-21 11:22:33,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:22:33,558 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:22:33,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-21 11:22:33,558 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:22:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:22:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1226192145, now seen corresponding path program 21 times [2020-09-21 11:22:33,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:22:33,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63324295] [2020-09-21 11:22:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:22:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-09-21 11:22:33,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-21 11:22:33,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:22:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:33,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:33,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:33,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:33,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:33,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:22:33,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:33,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:22:33,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:33,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:22:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:22:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 11:22:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-09-21 11:22:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-09-21 11:22:34,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-21 11:22:34,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-21 11:22:34,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-21 11:22:34,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-21 11:22:34,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:34,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:34,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:34,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:34,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:34,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-21 11:22:34,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-21 11:22:34,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-21 11:22:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 11:22:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:34,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,159 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 11:22:35,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-21 11:22:35,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-21 11:22:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-21 11:22:35,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:35,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-21 11:22:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-21 11:22:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:35,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:22:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-21 11:22:35,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-21 11:22:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-21 11:22:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,771 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-21 11:22:35,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 11:22:35,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-21 11:22:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-21 11:22:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:35,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:35,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:35,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:35,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:35,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-21 11:22:35,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:22:35,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,124 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,124 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,125 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 11:22:36,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-21 11:22:36,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-21 11:22:36,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-21 11:22:36,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:36,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,287 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,288 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,288 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:22:36,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:22:36,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-21 11:22:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:22:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,464 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:22:36,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:22:36,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-21 11:22:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:22:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,612 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:22:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,765 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:22:36,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 11:22:36,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-21 11:22:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-21 11:22:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:36,912 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:36,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:36,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:36,913 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:36,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-21 11:22:36,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:36,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:22:36,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-21 11:22:36,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:36,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-21 11:22:36,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,057 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,058 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,058 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,058 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 11:22:37,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:22:37,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-21 11:22:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-21 11:22:37,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,204 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,205 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,205 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-21 11:22:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:22:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:22:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:22:37,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,349 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,349 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-21 11:22:37,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:22:37,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-21 11:22:37,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:22:37,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:22:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:22:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 11:22:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:22:37,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-21 11:22:37,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:22:37,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:22:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:22:37,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:22:37,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,793 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,794 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:22:37,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:22:37,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:22:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:22:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:22:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:22:37,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:22:37,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:22:37,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:22:37,947 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:22:37,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:22:37,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:22:37,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:22:37,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:22:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:22:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:22:37,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:22:37,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:22:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-09-21 11:22:38,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63324295] [2020-09-21 11:22:38,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:22:38,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-09-21 11:22:38,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996929049] [2020-09-21 11:22:38,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-09-21 11:22:38,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:22:38,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-09-21 11:22:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=2071, Unknown=0, NotChecked=0, Total=2162 [2020-09-21 11:22:38,137 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 47 states. [2020-09-21 11:22:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:22:39,357 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-09-21 11:22:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-21 11:22:39,358 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 139