/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options 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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:57:00,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:57:00,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:57:00,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:57:00,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:57:00,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:57:00,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:57:00,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:57:00,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:57:00,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:57:00,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:57:00,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:57:00,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:57:00,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:57:00,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:57:00,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:57:00,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:57:00,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:57:00,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:57:00,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:57:00,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:57:00,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:57:00,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:57:00,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:57:00,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:57:00,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:57:00,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:57:00,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:57:00,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:57:00,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:57:00,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:57:00,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:57:00,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:57:00,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:57:00,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:57:00,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:57:00,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:57:00,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:57:00,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:57:00,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:57:00,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:57:00,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:57:00,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:57:00,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:57:00,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:57:00,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:57:00,671 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:57:00,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:57:00,672 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:57:00,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:57:00,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:57:00,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:57:00,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:57:00,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:57:00,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:57:00,675 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:57:00,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:57:00,675 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:57:00,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:57:00,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:57:00,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:57:00,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:57:00,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:57:00,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:57:00,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:57:00,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:57:00,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:57:00,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:57:00,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:57:00,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:57:00,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:57:00,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;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; [2020-09-24 15:57:01,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:57:01,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:57:01,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:57:01,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:57:01,167 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:57:01,169 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 15:57:01,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acb2e00cc/fc4d2f6a7483444f9e75a1af8e4073be/FLAG789620da5 [2020-09-24 15:57:01,832 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:57:01,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-09-24 15:57:01,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acb2e00cc/fc4d2f6a7483444f9e75a1af8e4073be/FLAG789620da5 [2020-09-24 15:57:02,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acb2e00cc/fc4d2f6a7483444f9e75a1af8e4073be [2020-09-24 15:57:02,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:57:02,228 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:57:02,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:57:02,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:57:02,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:57:02,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f21738f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02, skipping insertion in model container [2020-09-24 15:57:02,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:57:02,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:57:02,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:57:02,484 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:57:02,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:57:02,516 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:57:02,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02 WrapperNode [2020-09-24 15:57:02,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:57:02,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:57:02,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:57:02,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:57:02,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... [2020-09-24 15:57:02,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:57:02,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:57:02,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:57:02,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:57:02,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:57:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:57:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:57:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-24 15:57:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:57:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:57:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:57:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-24 15:57:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:57:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:57:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:57:02,909 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:57:02,909 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:57:02,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:57:02 BoogieIcfgContainer [2020-09-24 15:57:02,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:57:02,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:57:02,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:57:02,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:57:02,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:57:02" (1/3) ... [2020-09-24 15:57:02,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4c0bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:57:02, skipping insertion in model container [2020-09-24 15:57:02,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:57:02" (2/3) ... [2020-09-24 15:57:02,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b4c0bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:57:02, skipping insertion in model container [2020-09-24 15:57:02,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:57:02" (3/3) ... [2020-09-24 15:57:02,928 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-09-24 15:57:02,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:57:02,952 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:57:02,977 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:57:03,059 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:57:03,059 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:57:03,059 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:57:03,059 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:57:03,059 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:57:03,060 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:57:03,060 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:57:03,060 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:57:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-09-24 15:57:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 15:57:03,107 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:03,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:03,108 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash 607163649, now seen corresponding path program 1 times [2020-09-24 15:57:03,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:03,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958182188] [2020-09-24 15:57:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,293 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,294 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,294 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 15:57:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 15:57:03,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:57:03,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:03,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:03,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:03,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:03,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,433 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:03,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:03,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:57:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:03,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:57:03,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958182188] [2020-09-24 15:57:03,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:57:03,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:57:03,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446349211] [2020-09-24 15:57:03,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:57:03,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:03,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:57:03,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:57:03,526 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2020-09-24 15:57:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:03,692 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-24 15:57:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:57:03,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-24 15:57:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:03,709 INFO L225 Difference]: With dead ends: 45 [2020-09-24 15:57:03,710 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 15:57:03,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:57:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 15:57:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 15:57:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 15:57:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 15:57:03,777 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-24 15:57:03,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:03,777 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 15:57:03,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:57:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 15:57:03,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 15:57:03,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:03,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:03,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:57:03,781 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:03,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:03,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1887435767, now seen corresponding path program 1 times [2020-09-24 15:57:03,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:03,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236880487] [2020-09-24 15:57:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:57:03,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 15:57:03,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:03,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 15:57:03,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:03,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:03,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:03,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:03,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:03,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:03,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:03,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:03,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:03,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,013 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,014 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:04,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:57:04,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:57:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:04,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:04,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:57:04,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:04,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 15:57:04,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236880487] [2020-09-24 15:57:04,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:04,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:57:04,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162488452] [2020-09-24 15:57:04,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:57:04,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:04,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:57:04,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:57:04,221 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 15:57:04,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:04,416 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-09-24 15:57:04,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:57:04,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-24 15:57:04,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:04,418 INFO L225 Difference]: With dead ends: 37 [2020-09-24 15:57:04,418 INFO L226 Difference]: Without dead ends: 31 [2020-09-24 15:57:04,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:57:04,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-24 15:57:04,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-24 15:57:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 15:57:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-24 15:57:04,428 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2020-09-24 15:57:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:04,428 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-24 15:57:04,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:57:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-24 15:57:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 15:57:04,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:04,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:04,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:57:04,431 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1929059777, now seen corresponding path program 2 times [2020-09-24 15:57:04,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:04,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689842704] [2020-09-24 15:57:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,510 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,511 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 15:57:04,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:57:04,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:04,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:57:04,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:04,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:04,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:04,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:57:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:57:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,676 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,676 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:57:04,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:04,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:04,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:04,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:04,753 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:04,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:04,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:04,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:04,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:04,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:04,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 15:57:04,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689842704] [2020-09-24 15:57:04,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:04,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:57:04,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112122184] [2020-09-24 15:57:04,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:57:04,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:57:04,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:57:04,816 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 12 states. [2020-09-24 15:57:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:05,039 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2020-09-24 15:57:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:57:05,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-09-24 15:57:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:05,042 INFO L225 Difference]: With dead ends: 42 [2020-09-24 15:57:05,042 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 15:57:05,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:57:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 15:57:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-24 15:57:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 15:57:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-09-24 15:57:05,050 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 35 [2020-09-24 15:57:05,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:05,051 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-09-24 15:57:05,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:57:05,051 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-09-24 15:57:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 15:57:05,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:05,053 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:05,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:57:05,053 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:05,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:05,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1069340361, now seen corresponding path program 3 times [2020-09-24 15:57:05,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:05,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145424982] [2020-09-24 15:57:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:57:05,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:57:05,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:05,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 15:57:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:05,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,165 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:05,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,239 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,240 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,240 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:05,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:57:05,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:57:05,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:05,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:05,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:05,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:05,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:57:05,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:05,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:05,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:05,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,412 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:05,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 15:57:05,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:05,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:05,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:05,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:05,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:05,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:05,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:05,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:05,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:05,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:57:05,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 15:57:05,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145424982] [2020-09-24 15:57:05,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:05,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 15:57:05,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121512670] [2020-09-24 15:57:05,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 15:57:05,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:05,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 15:57:05,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-24 15:57:05,528 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 14 states. [2020-09-24 15:57:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:05,945 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 15:57:05,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:57:05,946 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-09-24 15:57:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:05,949 INFO L225 Difference]: With dead ends: 47 [2020-09-24 15:57:05,949 INFO L226 Difference]: Without dead ends: 41 [2020-09-24 15:57:05,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:57:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-24 15:57:05,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-24 15:57:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-24 15:57:05,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-09-24 15:57:05,964 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 43 [2020-09-24 15:57:05,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:05,965 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-09-24 15:57:05,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 15:57:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-09-24 15:57:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 15:57:05,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:05,969 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:05,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:57:05,970 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:05,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:05,970 INFO L82 PathProgramCache]: Analyzing trace with hash -287672703, now seen corresponding path program 4 times [2020-09-24 15:57:05,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:05,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958117184] [2020-09-24 15:57:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,134 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 15:57:06,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 15:57:06,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:06,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:57:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:06,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:06,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:06,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:57:06,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:57:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:06,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:06,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:06,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:57:06,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:06,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:06,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,448 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,448 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:57:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:06,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:06,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:57:06,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:06,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:06,601 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:06,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:06,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:06,602 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:06,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:06,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:06,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:57:06,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:06,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:06,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:06,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-24 15:57:06,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958117184] [2020-09-24 15:57:06,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:06,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 15:57:06,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999216766] [2020-09-24 15:57:06,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 15:57:06,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:06,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 15:57:06,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:57:06,660 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 16 states. [2020-09-24 15:57:07,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:07,108 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-09-24 15:57:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 15:57:07,109 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2020-09-24 15:57:07,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:07,110 INFO L225 Difference]: With dead ends: 52 [2020-09-24 15:57:07,110 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 15:57:07,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=811, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:57:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 15:57:07,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 15:57:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 15:57:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 15:57:07,126 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 51 [2020-09-24 15:57:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:07,127 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 15:57:07,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 15:57:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 15:57:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-24 15:57:07,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:07,128 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:07,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:57:07,129 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:07,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:07,129 INFO L82 PathProgramCache]: Analyzing trace with hash 389514871, now seen corresponding path program 5 times [2020-09-24 15:57:07,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:07,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800243647] [2020-09-24 15:57:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 15:57:07,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:57:07,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 15:57:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,299 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:07,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:07,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:57:07,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:57:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:07,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,550 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:07,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,649 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,649 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,650 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,650 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:07,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:57:07,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:07,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:07,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:57:07,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:07,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,791 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,792 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,792 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:07,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:57:07,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:07,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:07,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:07,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:07,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:07,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:07,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:07,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:57:07,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:07,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 70 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-24 15:57:07,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800243647] [2020-09-24 15:57:07,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:07,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 15:57:07,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895271846] [2020-09-24 15:57:07,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 15:57:07,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:07,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 15:57:07,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:57:07,951 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 15:57:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:08,659 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2020-09-24 15:57:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 15:57:08,660 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 59 [2020-09-24 15:57:08,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:08,662 INFO L225 Difference]: With dead ends: 57 [2020-09-24 15:57:08,662 INFO L226 Difference]: Without dead ends: 51 [2020-09-24 15:57:08,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 15:57:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-24 15:57:08,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-24 15:57:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-24 15:57:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-09-24 15:57:08,672 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 59 [2020-09-24 15:57:08,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:08,672 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-09-24 15:57:08,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 15:57:08,672 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-09-24 15:57:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 15:57:08,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:08,674 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:08,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:57:08,674 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:08,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:08,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1451925313, now seen corresponding path program 6 times [2020-09-24 15:57:08,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:08,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932111396] [2020-09-24 15:57:08,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:08,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:08,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:08,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:08,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:08,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 15:57:08,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 15:57:08,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:08,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 15:57:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:08,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:08,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:08,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:08,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:08,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:08,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:08,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:08,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:08,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:09,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 15:57:09,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:57:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:09,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,274 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,274 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,275 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,275 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:57:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,404 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,404 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,404 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:09,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:57:09,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,503 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,503 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:09,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:57:09,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:09,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:09,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:57:09,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:09,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:09,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:57:09,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:09,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:09,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:09,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:09,732 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:09,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:09,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:09,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:09,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:57:09,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:09,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:09,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 12 proven. 95 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 15:57:09,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932111396] [2020-09-24 15:57:09,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:09,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 15:57:09,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953022166] [2020-09-24 15:57:09,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 15:57:09,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:09,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 15:57:09,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-09-24 15:57:09,811 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 20 states. [2020-09-24 15:57:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:10,591 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-09-24 15:57:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 15:57:10,591 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 67 [2020-09-24 15:57:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:10,593 INFO L225 Difference]: With dead ends: 62 [2020-09-24 15:57:10,593 INFO L226 Difference]: Without dead ends: 56 [2020-09-24 15:57:10,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=1477, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:57:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-24 15:57:10,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-24 15:57:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-24 15:57:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-09-24 15:57:10,608 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 67 [2020-09-24 15:57:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:10,609 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-09-24 15:57:10,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 15:57:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-09-24 15:57:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-24 15:57:10,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:10,612 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:10,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:57:10,612 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2078207049, now seen corresponding path program 7 times [2020-09-24 15:57:10,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:10,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933082837] [2020-09-24 15:57:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:10,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:10,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:10,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:10,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:10,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 15:57:10,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:10,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 15:57:10,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:10,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:10,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 15:57:10,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:10,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:10,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:10,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:10,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:10,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:10,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,105 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:11,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-24 15:57:11,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:57:11,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:11,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:11,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 15:57:11,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:11,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:11,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 15:57:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,585 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:11,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:57:11,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:11,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:11,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:57:11,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:11,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:11,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:57:11,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:11,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,864 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,864 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:11,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:57:11,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:11,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:11,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:11,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:11,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:11,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:11,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:11,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:11,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:57:11,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:11,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 15:57:12,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933082837] [2020-09-24 15:57:12,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:12,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:57:12,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469137461] [2020-09-24 15:57:12,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:57:12,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:12,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:57:12,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:57:12,086 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 21 states. [2020-09-24 15:57:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:12,928 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 15:57:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 15:57:12,929 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 75 [2020-09-24 15:57:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:12,930 INFO L225 Difference]: With dead ends: 67 [2020-09-24 15:57:12,930 INFO L226 Difference]: Without dead ends: 61 [2020-09-24 15:57:12,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=1821, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 15:57:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-24 15:57:12,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-24 15:57:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-24 15:57:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-09-24 15:57:12,943 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 75 [2020-09-24 15:57:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:12,944 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-09-24 15:57:12,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:57:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-09-24 15:57:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 15:57:12,945 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:12,945 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:12,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:57:12,946 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:12,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:12,946 INFO L82 PathProgramCache]: Analyzing trace with hash 768055297, now seen corresponding path program 8 times [2020-09-24 15:57:12,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:12,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595201995] [2020-09-24 15:57:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-24 15:57:13,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 15:57:13,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:13,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:13,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 15:57:13,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:13,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:13,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:13,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,547 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,548 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,548 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,548 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:13,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-09-24 15:57:13,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:57:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:13,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:13,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:13,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 15:57:13,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:13,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:13,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:13,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:13,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:13,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:13,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:13,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:13,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 15:57:13,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:13,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:13,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:13,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:13,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:14,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 15:57:14,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:14,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:14,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:57:14,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,358 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:14,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:57:14,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:14,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,440 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:14,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:57:14,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:14,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,519 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:57:14,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:14,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:14,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:14,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:14,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:14,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:14,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:14,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:14,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:14,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:57:14,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 8 proven. 181 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-24 15:57:14,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595201995] [2020-09-24 15:57:14,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:14,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 15:57:14,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919489298] [2020-09-24 15:57:14,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 15:57:14,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:14,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 15:57:14,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:57:14,748 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 24 states. [2020-09-24 15:57:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:15,924 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2020-09-24 15:57:15,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 15:57:15,925 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 83 [2020-09-24 15:57:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:15,926 INFO L225 Difference]: With dead ends: 72 [2020-09-24 15:57:15,926 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 15:57:15,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=207, Invalid=2343, Unknown=0, NotChecked=0, Total=2550 [2020-09-24 15:57:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 15:57:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 15:57:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 15:57:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 15:57:15,940 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 83 [2020-09-24 15:57:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:15,940 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 15:57:15,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 15:57:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 15:57:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-09-24 15:57:15,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:15,946 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:15,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:57:15,946 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:15,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:15,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1891881207, now seen corresponding path program 9 times [2020-09-24 15:57:15,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:15,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406135542] [2020-09-24 15:57:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:16,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:16,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:16,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:16,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:16,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-24 15:57:16,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-24 15:57:16,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:16,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 15:57:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:16,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:16,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:16,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:16,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:16,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:16,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:16,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:16,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:16,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:16,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:16,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:16,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:16,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:16,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:16,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:16,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:57:16,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:16,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:16,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:16,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:16,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:16,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:16,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:16,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:16,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:16,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 15:57:16,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:16,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:16,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:16,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:16,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:16,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:17,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-09-24 15:57:17,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:17,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 15:57:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:17,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 15:57:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:17,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:17,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,573 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,574 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,574 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:17,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 15:57:17,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:17,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:57:17,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:17,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:17,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:17,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:57:17,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,832 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,832 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:17,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:57:17,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:17,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:17,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:17,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:17,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:57:17,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 28 proven. 215 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 15:57:18,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406135542] [2020-09-24 15:57:18,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:18,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-09-24 15:57:18,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42303509] [2020-09-24 15:57:18,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-24 15:57:18,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:18,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-24 15:57:18,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:57:18,078 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 26 states. [2020-09-24 15:57:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:19,494 INFO L93 Difference]: Finished difference Result 77 states and 78 transitions. [2020-09-24 15:57:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 15:57:19,495 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 91 [2020-09-24 15:57:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:19,496 INFO L225 Difference]: With dead ends: 77 [2020-09-24 15:57:19,496 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 15:57:19,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=229, Invalid=2851, Unknown=0, NotChecked=0, Total=3080 [2020-09-24 15:57:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 15:57:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-24 15:57:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 15:57:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-09-24 15:57:19,506 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 91 [2020-09-24 15:57:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:19,506 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-09-24 15:57:19,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-24 15:57:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-09-24 15:57:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-24 15:57:19,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:19,508 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:19,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:57:19,508 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:19,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:19,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2102223041, now seen corresponding path program 10 times [2020-09-24 15:57:19,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:19,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771946964] [2020-09-24 15:57:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,862 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:57:19,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-24 15:57:19,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:19,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 15:57:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:19,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:19,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:19,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:19,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:19,898 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:19,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:19,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:19,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:19,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:20,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:20,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:20,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:20,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:20,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:20,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:20,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-09-24 15:57:20,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-24 15:57:20,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:20,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:20,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:20,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:20,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:20,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:20,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:20,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 15:57:20,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:20,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:20,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:20,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:20,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:20,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:20,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:20,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:20,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-24 15:57:20,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:20,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:20,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,035 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,036 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:21,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 15:57:21,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:21,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:21,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:21,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 15:57:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:21,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:57:21,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:21,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,547 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:21,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:57:21,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:21,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:21,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:57:21,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:21,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,756 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:21,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:57:21,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:21,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:21,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:21,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:21,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:21,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:21,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:21,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:21,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:21,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:57:21,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:22,056 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 8 proven. 289 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-09-24 15:57:22,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771946964] [2020-09-24 15:57:22,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:22,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-09-24 15:57:22,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066157396] [2020-09-24 15:57:22,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-24 15:57:22,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:22,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-24 15:57:22,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756 [2020-09-24 15:57:22,058 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 28 states. [2020-09-24 15:57:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:23,972 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-09-24 15:57:23,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 15:57:23,972 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 99 [2020-09-24 15:57:23,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:23,974 INFO L225 Difference]: With dead ends: 82 [2020-09-24 15:57:23,975 INFO L226 Difference]: Without dead ends: 76 [2020-09-24 15:57:23,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=251, Invalid=3409, Unknown=0, NotChecked=0, Total=3660 [2020-09-24 15:57:23,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-24 15:57:23,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-09-24 15:57:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-24 15:57:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 77 transitions. [2020-09-24 15:57:23,984 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 77 transitions. Word has length 99 [2020-09-24 15:57:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:23,984 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 77 transitions. [2020-09-24 15:57:23,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-24 15:57:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 77 transitions. [2020-09-24 15:57:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 15:57:23,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:23,986 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:23,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:57:23,986 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:23,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:23,987 INFO L82 PathProgramCache]: Analyzing trace with hash -505168329, now seen corresponding path program 11 times [2020-09-24 15:57:23,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:23,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117189075] [2020-09-24 15:57:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:24,350 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:24,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:24,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:24,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-24 15:57:24,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-24 15:57:24,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 15:57:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:24,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:24,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:24,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:24,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:24,398 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:24,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:57:24,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:24,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:24,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-24 15:57:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-09-24 15:57:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:57:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:24,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,165 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,166 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,166 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:25,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-24 15:57:25,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:25,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:25,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 15:57:25,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:25,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:25,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:25,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:25,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:25,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:25,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 15:57:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:25,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:26,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-24 15:57:26,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:26,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:26,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:26,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:26,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 15:57:26,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:26,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:26,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 15:57:26,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:26,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:26,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:26,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:57:26,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:26,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:26,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:26,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:26,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:26,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:26,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:26,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:26,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:26,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:57:26,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:26,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:26,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:26,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:27,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:27,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:57:27,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:27,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:57:27,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,170 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:27,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:57:27,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:27,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:27,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:57:27,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:27,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:27,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:27,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:27,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:27,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:27,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:57:27,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:57:27,526 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 20 proven. 342 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-09-24 15:57:27,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117189075] [2020-09-24 15:57:27,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:27,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-09-24 15:57:27,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714710987] [2020-09-24 15:57:27,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-24 15:57:27,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:27,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-24 15:57:27,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=812, Unknown=0, NotChecked=0, Total=870 [2020-09-24 15:57:27,529 INFO L87 Difference]: Start difference. First operand 76 states and 77 transitions. Second operand 30 states. [2020-09-24 15:57:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:29,572 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2020-09-24 15:57:29,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-24 15:57:29,573 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 107 [2020-09-24 15:57:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:29,574 INFO L225 Difference]: With dead ends: 87 [2020-09-24 15:57:29,574 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 15:57:29,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=272, Invalid=4018, Unknown=0, NotChecked=0, Total=4290 [2020-09-24 15:57:29,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 15:57:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-09-24 15:57:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 15:57:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-09-24 15:57:29,583 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 107 [2020-09-24 15:57:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:29,584 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-09-24 15:57:29,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-24 15:57:29,584 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-09-24 15:57:29,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-09-24 15:57:29,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:29,585 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:29,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:57:29,586 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:29,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:29,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1831339647, now seen corresponding path program 12 times [2020-09-24 15:57:29,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:29,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524688217] [2020-09-24 15:57:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:30,007 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:30,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:30,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:30,008 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:30,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-09-24 15:57:30,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:30,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 401 [2020-09-24 15:57:30,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:30,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:30,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 15:57:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:30,047 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:30,047 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:30,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:30,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:30,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:30,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:30,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:30,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:30,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:30,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:30,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:30,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:30,493 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:30,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:30,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:57:30,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-09-24 15:57:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-09-24 15:57:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:57:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:30,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:30,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:30,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:30,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:30,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:30,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:57:30,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-09-24 15:57:30,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:30,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:57:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:30,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:31,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:31,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:31,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:31,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:31,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:31,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:31,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 15:57:31,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:31,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:31,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:31,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:31,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:31,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:31,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:31,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:31,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:31,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:31,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 15:57:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:31,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:31,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:31,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:31,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:31,760 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:31,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:31,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:31,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:31,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:31,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:31,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:31,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:31,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:31,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 15:57:31,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:32,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 15:57:32,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:32,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:32,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:57:32,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:32,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:57:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,542 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,543 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:32,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:57:32,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:32,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 15:57:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,658 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:32,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:57:32,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:32,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,758 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:32,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:57:32,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:32,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:57:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:32,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:32,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:32,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:32,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:32,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:32,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:57:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:32,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:57:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 23 proven. 410 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-09-24 15:57:33,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524688217] [2020-09-24 15:57:33,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:33,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-09-24 15:57:33,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964343064] [2020-09-24 15:57:33,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-24 15:57:33,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:33,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-24 15:57:33,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=985, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 15:57:33,233 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 33 states. [2020-09-24 15:57:35,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:35,586 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2020-09-24 15:57:35,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-24 15:57:35,587 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 115 [2020-09-24 15:57:35,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:35,589 INFO L225 Difference]: With dead ends: 92 [2020-09-24 15:57:35,589 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 15:57:35,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=341, Invalid=4771, Unknown=0, NotChecked=0, Total=5112 [2020-09-24 15:57:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 15:57:35,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-24 15:57:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 15:57:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-09-24 15:57:35,599 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 115 [2020-09-24 15:57:35,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:35,599 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-09-24 15:57:35,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-24 15:57:35,600 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-09-24 15:57:35,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 15:57:35,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:35,601 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:35,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:57:35,602 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:35,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:35,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1220224137, now seen corresponding path program 13 times [2020-09-24 15:57:35,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:35,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198853048] [2020-09-24 15:57:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:36,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:36,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:36,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:36,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:36,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-24 15:57:36,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-09-24 15:57:36,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-09-24 15:57:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:36,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:57:36,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:36,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:36,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:36,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:36,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:36,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:36,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:36,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:36,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:36,526 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:36,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:36,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:57:36,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-24 15:57:36,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-09-24 15:57:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:36,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:57:36,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:36,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:37,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:37,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:37,034 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:37,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:37,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:57:37,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-24 15:57:37,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:37,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:57:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:37,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:37,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:37,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:37,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:37,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:37,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:57:37,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:37,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-24 15:57:37,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:37,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:57:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:37,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:37,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:37,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:37,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:37,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:37,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:37,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-24 15:57:37,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:37,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:37,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:37,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:38,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:38,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:38,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:38,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:38,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:38,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 15:57:38,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:38,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:38,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:38,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:38,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:38,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:38,610 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:38,610 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:38,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:38,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 15:57:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:38,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:38,814 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:38,814 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:38,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:38,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:38,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:38,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 15:57:38,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:38,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:38,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:38,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:38,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:39,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 15:57:39,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:39,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:39,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:39,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:39,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:57:39,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:39,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:39,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:39,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:57:39,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:39,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,394 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:39,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:57:39,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:39,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:39,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,510 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:39,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:57:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:39,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:39,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:39,638 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:39,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:39,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:39,639 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:39,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:39,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:57:39,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:39,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:39,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:39,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 40 proven. 466 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-09-24 15:57:39,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198853048] [2020-09-24 15:57:39,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:39,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-09-24 15:57:39,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176289131] [2020-09-24 15:57:39,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-24 15:57:39,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:39,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-24 15:57:39,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1055, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 15:57:39,849 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 34 states. [2020-09-24 15:57:42,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:42,585 INFO L93 Difference]: Finished difference Result 97 states and 98 transitions. [2020-09-24 15:57:42,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-24 15:57:42,585 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 123 [2020-09-24 15:57:42,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:42,587 INFO L225 Difference]: With dead ends: 97 [2020-09-24 15:57:42,587 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 15:57:42,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=317, Invalid=5383, Unknown=0, NotChecked=0, Total=5700 [2020-09-24 15:57:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 15:57:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-09-24 15:57:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-24 15:57:42,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 92 transitions. [2020-09-24 15:57:42,597 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 92 transitions. Word has length 123 [2020-09-24 15:57:42,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:42,598 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 92 transitions. [2020-09-24 15:57:42,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-24 15:57:42,598 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 92 transitions. [2020-09-24 15:57:42,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-24 15:57:42,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:42,600 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:42,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:57:42,600 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:42,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:42,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1054645695, now seen corresponding path program 14 times [2020-09-24 15:57:42,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:42,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523007274] [2020-09-24 15:57:42,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:43,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-24 15:57:43,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-09-24 15:57:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:43,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 15:57:43,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:43,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:43,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:43,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:43,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:43,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:43,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:43,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:43,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-09-24 15:57:43,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-09-24 15:57:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:43,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:57:43,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:43,999 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:43,999 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 375 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-09-24 15:57:44,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:57:44,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:44,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:44,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:44,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:44,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:44,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:57:44,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-24 15:57:44,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:44,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:57:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:44,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:44,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:44,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:44,875 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:44,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:44,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:57:44,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:57:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:44,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:45,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:45,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:45,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:45,186 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:45,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:57:45,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:57:45,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:45,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:45,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:45,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:45,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:45,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:45,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:57:45,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 15:57:45,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:57:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:45,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:57:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:45,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:45,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:45,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:57:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:57:45,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:45,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:45,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:45,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:45,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:45,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:57:45,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:45,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:57:45,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:45,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:57:46,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:57:46,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:57:46,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:57:46,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 15:57:46,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:57:46,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:57:46,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:57:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:57:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:57:46,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:57:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:57:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:46,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,534 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:57:46,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:57:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:57:46,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:57:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:46,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:57:46,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:57:46,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:57:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:57:46,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:46,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,799 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:57:46,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:57:46,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:57:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:57:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:46,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:46,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:46,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:46,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:46,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:57:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:46,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:57:46,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:57:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:57:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 66 proven. 519 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-09-24 15:57:47,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523007274] [2020-09-24 15:57:47,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:57:47,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-09-24 15:57:47,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16548854] [2020-09-24 15:57:47,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-09-24 15:57:47,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:57:47,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-09-24 15:57:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1189, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:57:47,151 INFO L87 Difference]: Start difference. First operand 91 states and 92 transitions. Second operand 36 states. [2020-09-24 15:57:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:57:50,226 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2020-09-24 15:57:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-09-24 15:57:50,227 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 131 [2020-09-24 15:57:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:57:50,228 INFO L225 Difference]: With dead ends: 102 [2020-09-24 15:57:50,228 INFO L226 Difference]: Without dead ends: 96 [2020-09-24 15:57:50,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=339, Invalid=6141, Unknown=0, NotChecked=0, Total=6480 [2020-09-24 15:57:50,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-24 15:57:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-09-24 15:57:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-24 15:57:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2020-09-24 15:57:50,236 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 131 [2020-09-24 15:57:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:57:50,236 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2020-09-24 15:57:50,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-09-24 15:57:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2020-09-24 15:57:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-24 15:57:50,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:57:50,238 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:57:50,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:57:50,239 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:57:50,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:57:50,239 INFO L82 PathProgramCache]: Analyzing trace with hash -341104457, now seen corresponding path program 15 times [2020-09-24 15:57:50,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:57:50,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468729405] [2020-09-24 15:57:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:57:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:50,788 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:50,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:50,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:50,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-09-24 15:57:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:57:50,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-24 15:57:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:50,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:57:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:50,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:50,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:50,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:57:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:50,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:57:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:50,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-24 15:57:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:51,406 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:51,407 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:51,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:51,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:51,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:57:51,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:51,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-09-24 15:57:51,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-09-24 15:57:51,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:57:51,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:57:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:51,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:51,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:51,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:51,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:57:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:52,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:52,416 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:52,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:52,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-09-24 15:57:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:57:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:52,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:52,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-24 15:57:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-09-24 15:57:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:57:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:52,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:57:53,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:57:53,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:57:53,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-09-24 15:57:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:57:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:57:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:57:53,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:57:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat