/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_3.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 04:45:10,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 04:45:10,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 04:45:10,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 04:45:10,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 04:45:10,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 04:45:10,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 04:45:10,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 04:45:10,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 04:45:10,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 04:45:10,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 04:45:10,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 04:45:10,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 04:45:10,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 04:45:10,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 04:45:10,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 04:45:10,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 04:45:10,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 04:45:10,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 04:45:10,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 04:45:10,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 04:45:10,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 04:45:10,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 04:45:10,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 04:45:10,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 04:45:10,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 04:45:10,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 04:45:10,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 04:45:10,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 04:45:10,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 04:45:10,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 04:45:10,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 04:45:10,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 04:45:10,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 04:45:10,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 04:45:10,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 04:45:10,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 04:45:10,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 04:45:10,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 04:45:10,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 04:45:10,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 04:45:10,699 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 [2020-10-14 04:45:10,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 04:45:10,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 04:45:10,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 04:45:10,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 04:45:10,723 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 04:45:10,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 04:45:10,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 04:45:10,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 04:45:10,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 04:45:10,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 04:45:10,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 04:45:10,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 04:45:10,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 04:45:10,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 04:45:10,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 04:45:10,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 04:45:10,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 04:45:10,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 04:45:10,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 04:45:10,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 04:45:10,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 04:45:10,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 04:45:10,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 04:45:10,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 04:45:10,728 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 04:45:11,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 04:45:11,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 04:45:11,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 04:45:11,064 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 04:45:11,065 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 04:45:11,066 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c.p+cfa-reducer.c [2020-10-14 04:45:11,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e43c03f3/d648838944f74c16a5ce419055d10a63/FLAGcb1d52269 [2020-10-14 04:45:11,529 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 04:45:11,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_3.c.p+cfa-reducer.c [2020-10-14 04:45:11,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e43c03f3/d648838944f74c16a5ce419055d10a63/FLAGcb1d52269 [2020-10-14 04:45:11,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9e43c03f3/d648838944f74c16a5ce419055d10a63 [2020-10-14 04:45:11,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 04:45:11,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 04:45:11,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 04:45:11,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 04:45:11,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 04:45:11,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:11" (1/1) ... [2020-10-14 04:45:11,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157ca41e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:11, skipping insertion in model container [2020-10-14 04:45:11,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:11" (1/1) ... [2020-10-14 04:45:11,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 04:45:11,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 04:45:12,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:45:12,210 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 04:45:12,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 04:45:12,253 INFO L208 MainTranslator]: Completed translation [2020-10-14 04:45:12,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12 WrapperNode [2020-10-14 04:45:12,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 04:45:12,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 04:45:12,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 04:45:12,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 04:45:12,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (1/1) ... [2020-10-14 04:45:12,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 04:45:12,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 04:45:12,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 04:45:12,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 04:45:12,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (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 [2020-10-14 04:45:12,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 04:45:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 04:45:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 04:45:12,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 04:45:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 04:45:12,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 04:45:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 04:45:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 04:45:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 04:45:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-14 04:45:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-14 04:45:12,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 04:45:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 04:45:12,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 04:45:12,691 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 04:45:12,692 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 04:45:12,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:12 BoogieIcfgContainer [2020-10-14 04:45:12,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 04:45:12,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 04:45:12,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 04:45:12,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 04:45:12,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:45:11" (1/3) ... [2020-10-14 04:45:12,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635c5ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:12, skipping insertion in model container [2020-10-14 04:45:12,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:12" (2/3) ... [2020-10-14 04:45:12,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635c5ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:12, skipping insertion in model container [2020-10-14 04:45:12,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:12" (3/3) ... [2020-10-14 04:45:12,705 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_3.c.p+cfa-reducer.c [2020-10-14 04:45:12,716 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 04:45:12,724 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 04:45:12,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 04:45:12,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 04:45:12,765 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 04:45:12,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 04:45:12,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 04:45:12,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 04:45:12,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 04:45:12,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 04:45:12,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 04:45:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-10-14 04:45:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-14 04:45:12,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:12,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:12,795 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 351328408, now seen corresponding path program 1 times [2020-10-14 04:45:12,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:12,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471024719] [2020-10-14 04:45:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:12,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:13,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 04:45:13,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:45:13,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 404 [2020-10-14 04:45:13,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:13,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:45:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:13,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:45:13,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 04:45:13,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:13,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:13,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:13,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:13,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 04:45:13,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:13,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:13,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:13,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:13,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:13,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471024719] [2020-10-14 04:45:13,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:45:13,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:45:13,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981051658] [2020-10-14 04:45:13,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:45:13,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:13,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:45:13,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:45:13,517 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2020-10-14 04:45:13,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:13,614 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2020-10-14 04:45:13,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:45:13,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-14 04:45:13,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:13,627 INFO L225 Difference]: With dead ends: 40 [2020-10-14 04:45:13,627 INFO L226 Difference]: Without dead ends: 23 [2020-10-14 04:45:13,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:45:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-14 04:45:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2020-10-14 04:45:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-14 04:45:13,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-10-14 04:45:13,670 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2020-10-14 04:45:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:13,671 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-10-14 04:45:13,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:45:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-10-14 04:45:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 04:45:13,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:13,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:13,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 04:45:13,673 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:13,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1561537668, now seen corresponding path program 1 times [2020-10-14 04:45:13,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:13,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203553114] [2020-10-14 04:45:13,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:13,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:45:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 04:45:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 04:45:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:13,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 04:45:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 04:45:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 04:45:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:13,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:13,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:13,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:13,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:13,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:13,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:13,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:13,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203553114] [2020-10-14 04:45:13,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:45:13,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 04:45:13,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143368413] [2020-10-14 04:45:13,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 04:45:13,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:13,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 04:45:13,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:45:13,967 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2020-10-14 04:45:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:14,021 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-10-14 04:45:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 04:45:14,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-14 04:45:14,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:14,024 INFO L225 Difference]: With dead ends: 32 [2020-10-14 04:45:14,024 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 04:45:14,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 04:45:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 04:45:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 04:45:14,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 04:45:14,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-10-14 04:45:14,031 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2020-10-14 04:45:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:14,032 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-10-14 04:45:14,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 04:45:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-10-14 04:45:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 04:45:14,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:14,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:14,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 04:45:14,034 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:14,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1704294753, now seen corresponding path program 1 times [2020-10-14 04:45:14,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:14,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081315845] [2020-10-14 04:45:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:14,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:14,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 04:45:14,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:45:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 04:45:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:14,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:45:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 04:45:14,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:14,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:14,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:14,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:14,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:14,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:45:14,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:14,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:14,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:14,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:14,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:14,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081315845] [2020-10-14 04:45:14,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:14,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 04:45:14,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894412971] [2020-10-14 04:45:14,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:45:14,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:14,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:45:14,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:45:14,302 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2020-10-14 04:45:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:14,372 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2020-10-14 04:45:14,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:45:14,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-14 04:45:14,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:14,374 INFO L225 Difference]: With dead ends: 32 [2020-10-14 04:45:14,374 INFO L226 Difference]: Without dead ends: 25 [2020-10-14 04:45:14,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:45:14,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-14 04:45:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2020-10-14 04:45:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-14 04:45:14,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-14 04:45:14,386 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 16 [2020-10-14 04:45:14,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:14,386 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-14 04:45:14,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:45:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-14 04:45:14,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 04:45:14,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:14,389 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:14,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 04:45:14,390 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:14,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:14,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1337973030, now seen corresponding path program 2 times [2020-10-14 04:45:14,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:14,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587439672] [2020-10-14 04:45:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:14,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 04:45:14,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:45:14,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-14 04:45:14,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:14,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 04:45:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:14,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 04:45:14,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:14,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:14,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:14,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:14,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:14,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:14,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:14,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587439672] [2020-10-14 04:45:14,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:14,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 04:45:14,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545537751] [2020-10-14 04:45:14,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 04:45:14,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:14,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 04:45:14,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:45:14,745 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-10-14 04:45:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:14,806 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-14 04:45:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 04:45:14,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-14 04:45:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:14,808 INFO L225 Difference]: With dead ends: 36 [2020-10-14 04:45:14,808 INFO L226 Difference]: Without dead ends: 29 [2020-10-14 04:45:14,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:45:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-14 04:45:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2020-10-14 04:45:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-14 04:45:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-14 04:45:14,815 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 20 [2020-10-14 04:45:14,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:14,816 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-14 04:45:14,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 04:45:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-14 04:45:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:45:14,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:14,817 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:14,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 04:45:14,818 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:14,819 INFO L82 PathProgramCache]: Analyzing trace with hash -578121683, now seen corresponding path program 3 times [2020-10-14 04:45:14,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:14,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028217048] [2020-10-14 04:45:14,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:14,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:14,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:14,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:45:14,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 04:45:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 04:45:14,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:14,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 04:45:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 04:45:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 04:45:14,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:15,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:15,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:15,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 04:45:15,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028217048] [2020-10-14 04:45:15,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 04:45:15,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 04:45:15,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766703990] [2020-10-14 04:45:15,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 04:45:15,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:15,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 04:45:15,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 04:45:15,063 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 5 states. [2020-10-14 04:45:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:15,113 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-14 04:45:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 04:45:15,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-14 04:45:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:15,115 INFO L225 Difference]: With dead ends: 30 [2020-10-14 04:45:15,115 INFO L226 Difference]: Without dead ends: 26 [2020-10-14 04:45:15,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 04:45:15,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-14 04:45:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-14 04:45:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-14 04:45:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-14 04:45:15,121 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2020-10-14 04:45:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:15,122 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-14 04:45:15,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 04:45:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-14 04:45:15,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 04:45:15,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:15,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:15,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 04:45:15,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:15,124 INFO L82 PathProgramCache]: Analyzing trace with hash -563017646, now seen corresponding path program 1 times [2020-10-14 04:45:15,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:15,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011900102] [2020-10-14 04:45:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-14 04:45:15,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 04:45:15,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 04:45:15,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 04:45:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:15,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:15,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:15,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:15,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:15,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011900102] [2020-10-14 04:45:15,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:15,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 04:45:15,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129664215] [2020-10-14 04:45:15,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 04:45:15,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:15,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 04:45:15,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:45:15,304 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2020-10-14 04:45:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:15,370 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-10-14 04:45:15,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 04:45:15,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-10-14 04:45:15,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:15,372 INFO L225 Difference]: With dead ends: 40 [2020-10-14 04:45:15,372 INFO L226 Difference]: Without dead ends: 33 [2020-10-14 04:45:15,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 04:45:15,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-14 04:45:15,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2020-10-14 04:45:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-14 04:45:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-14 04:45:15,379 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 24 [2020-10-14 04:45:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:15,379 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-14 04:45:15,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 04:45:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-14 04:45:15,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 04:45:15,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:15,381 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:15,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 04:45:15,381 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:15,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1972706343, now seen corresponding path program 2 times [2020-10-14 04:45:15,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:15,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586921215] [2020-10-14 04:45:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 04:45:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 04:45:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 04:45:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 04:45:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:15,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:15,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:15,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586921215] [2020-10-14 04:45:15,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:15,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 04:45:15,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511503045] [2020-10-14 04:45:15,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 04:45:15,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:15,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 04:45:15,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:45:15,616 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-10-14 04:45:15,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:15,671 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-10-14 04:45:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 04:45:15,671 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-14 04:45:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:15,672 INFO L225 Difference]: With dead ends: 44 [2020-10-14 04:45:15,672 INFO L226 Difference]: Without dead ends: 37 [2020-10-14 04:45:15,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 04:45:15,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-14 04:45:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2020-10-14 04:45:15,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-14 04:45:15,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-10-14 04:45:15,679 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 28 [2020-10-14 04:45:15,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:15,679 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-10-14 04:45:15,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 04:45:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-10-14 04:45:15,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 04:45:15,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:15,681 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:15,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 04:45:15,681 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:15,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:15,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1485986848, now seen corresponding path program 3 times [2020-10-14 04:45:15,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:15,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234568947] [2020-10-14 04:45:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 04:45:15,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 04:45:15,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 04:45:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 04:45:15,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:15,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:15,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:15,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:15,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:15,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:15,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:15,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234568947] [2020-10-14 04:45:15,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:15,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 04:45:15,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113685176] [2020-10-14 04:45:15,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 04:45:15,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:15,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 04:45:15,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:45:15,909 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 9 states. [2020-10-14 04:45:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:15,971 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2020-10-14 04:45:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 04:45:15,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2020-10-14 04:45:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:15,972 INFO L225 Difference]: With dead ends: 48 [2020-10-14 04:45:15,973 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 04:45:15,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-14 04:45:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 04:45:15,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2020-10-14 04:45:15,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-14 04:45:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-14 04:45:15,979 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 32 [2020-10-14 04:45:15,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:15,979 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-14 04:45:15,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 04:45:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-14 04:45:15,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 04:45:15,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:15,981 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:15,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 04:45:15,981 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:15,982 INFO L82 PathProgramCache]: Analyzing trace with hash 91424871, now seen corresponding path program 4 times [2020-10-14 04:45:15,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:15,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809231788] [2020-10-14 04:45:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 04:45:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 04:45:16,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 04:45:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 04:45:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:16,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:16,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809231788] [2020-10-14 04:45:16,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:16,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 04:45:16,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654968438] [2020-10-14 04:45:16,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 04:45:16,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:16,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 04:45:16,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:45:16,290 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-10-14 04:45:16,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:16,350 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2020-10-14 04:45:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 04:45:16,351 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-10-14 04:45:16,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:16,352 INFO L225 Difference]: With dead ends: 52 [2020-10-14 04:45:16,352 INFO L226 Difference]: Without dead ends: 45 [2020-10-14 04:45:16,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-14 04:45:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-14 04:45:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-10-14 04:45:16,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 04:45:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-14 04:45:16,358 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 36 [2020-10-14 04:45:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:16,358 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-14 04:45:16,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 04:45:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-14 04:45:16,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 04:45:16,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:16,360 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:16,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 04:45:16,360 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:16,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1637142894, now seen corresponding path program 5 times [2020-10-14 04:45:16,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:16,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741945612] [2020-10-14 04:45:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 04:45:16,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 04:45:16,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 04:45:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 04:45:16,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:16,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 04:45:16,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:16,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741945612] [2020-10-14 04:45:16,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:16,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 04:45:16,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047114086] [2020-10-14 04:45:16,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 04:45:16,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:16,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 04:45:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:45:16,656 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 11 states. [2020-10-14 04:45:16,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:16,730 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2020-10-14 04:45:16,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 04:45:16,730 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-14 04:45:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:16,731 INFO L225 Difference]: With dead ends: 56 [2020-10-14 04:45:16,731 INFO L226 Difference]: Without dead ends: 49 [2020-10-14 04:45:16,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-14 04:45:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-14 04:45:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2020-10-14 04:45:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-14 04:45:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-14 04:45:16,737 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 40 [2020-10-14 04:45:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:16,738 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-14 04:45:16,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 04:45:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-14 04:45:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-14 04:45:16,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:16,739 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:16,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 04:45:16,740 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:16,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:16,740 INFO L82 PathProgramCache]: Analyzing trace with hash -703807755, now seen corresponding path program 6 times [2020-10-14 04:45:16,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:16,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435461783] [2020-10-14 04:45:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:16,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:16,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 04:45:16,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:16,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 04:45:16,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:16,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 04:45:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 04:45:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 04:45:17,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:17,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435461783] [2020-10-14 04:45:17,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:17,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-14 04:45:17,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759920645] [2020-10-14 04:45:17,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 04:45:17,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:17,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 04:45:17,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:45:17,119 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 12 states. [2020-10-14 04:45:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:17,179 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2020-10-14 04:45:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 04:45:17,180 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2020-10-14 04:45:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:17,181 INFO L225 Difference]: With dead ends: 60 [2020-10-14 04:45:17,181 INFO L226 Difference]: Without dead ends: 53 [2020-10-14 04:45:17,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-14 04:45:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-14 04:45:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2020-10-14 04:45:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-14 04:45:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-14 04:45:17,187 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 44 [2020-10-14 04:45:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:17,188 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-14 04:45:17,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 04:45:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-14 04:45:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 04:45:17,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:17,189 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:17,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 04:45:17,189 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:17,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1244958972, now seen corresponding path program 7 times [2020-10-14 04:45:17,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:17,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620726918] [2020-10-14 04:45:17,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 04:45:17,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-14 04:45:17,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 04:45:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 04:45:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:17,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:17,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:17,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:17,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:17,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:17,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:17,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:17,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:17,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620726918] [2020-10-14 04:45:17,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:17,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 04:45:17,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331211356] [2020-10-14 04:45:17,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 04:45:17,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:17,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 04:45:17,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:45:17,740 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 13 states. [2020-10-14 04:45:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:17,807 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2020-10-14 04:45:17,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 04:45:17,808 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-10-14 04:45:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:17,809 INFO L225 Difference]: With dead ends: 64 [2020-10-14 04:45:17,809 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 04:45:17,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-14 04:45:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 04:45:17,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-10-14 04:45:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-14 04:45:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-14 04:45:17,815 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 48 [2020-10-14 04:45:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:17,816 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-14 04:45:17,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 04:45:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-14 04:45:17,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 04:45:17,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:17,817 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:17,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 04:45:17,817 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:17,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:17,818 INFO L82 PathProgramCache]: Analyzing trace with hash -494532733, now seen corresponding path program 8 times [2020-10-14 04:45:17,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:17,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126065268] [2020-10-14 04:45:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:18,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:18,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 04:45:18,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:18,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 04:45:18,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:18,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 04:45:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 04:45:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:18,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:18,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:18,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:18,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:18,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:18,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:18,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:18,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:18,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:18,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:18,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:18,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:18,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126065268] [2020-10-14 04:45:18,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:18,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-14 04:45:18,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956619951] [2020-10-14 04:45:18,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-14 04:45:18,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:18,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-14 04:45:18,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:45:18,282 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 14 states. [2020-10-14 04:45:18,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:18,350 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-10-14 04:45:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 04:45:18,351 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 52 [2020-10-14 04:45:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:18,352 INFO L225 Difference]: With dead ends: 68 [2020-10-14 04:45:18,352 INFO L226 Difference]: Without dead ends: 61 [2020-10-14 04:45:18,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-14 04:45:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-14 04:45:18,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2020-10-14 04:45:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-14 04:45:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-10-14 04:45:18,358 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 52 [2020-10-14 04:45:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:18,358 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-10-14 04:45:18,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-14 04:45:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-10-14 04:45:18,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 04:45:18,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:18,359 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:18,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 04:45:18,360 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:18,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1889198730, now seen corresponding path program 9 times [2020-10-14 04:45:18,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:18,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499936371] [2020-10-14 04:45:18,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:18,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:18,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 04:45:18,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:18,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 04:45:18,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:18,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 04:45:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 04:45:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:18,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:18,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:18,804 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:18,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499936371] [2020-10-14 04:45:18,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:18,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 04:45:18,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995978927] [2020-10-14 04:45:18,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 04:45:18,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:18,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 04:45:18,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:45:18,807 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-10-14 04:45:18,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:18,886 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2020-10-14 04:45:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 04:45:18,887 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2020-10-14 04:45:18,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:18,888 INFO L225 Difference]: With dead ends: 72 [2020-10-14 04:45:18,888 INFO L226 Difference]: Without dead ends: 65 [2020-10-14 04:45:18,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-14 04:45:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-14 04:45:18,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-10-14 04:45:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-14 04:45:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-14 04:45:18,894 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 56 [2020-10-14 04:45:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:18,894 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-14 04:45:18,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 04:45:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-14 04:45:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-14 04:45:18,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:18,895 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:18,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 04:45:18,896 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash -483597807, now seen corresponding path program 10 times [2020-10-14 04:45:18,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:18,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789018640] [2020-10-14 04:45:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:18,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:19,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:19,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 04:45:19,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:19,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 04:45:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:19,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:19,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:19,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:19,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:19,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:19,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:19,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:19,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:19,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:19,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:19,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789018640] [2020-10-14 04:45:19,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:19,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 04:45:19,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664009108] [2020-10-14 04:45:19,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 04:45:19,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:19,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 04:45:19,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:45:19,345 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 16 states. [2020-10-14 04:45:19,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:19,417 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-10-14 04:45:19,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 04:45:19,418 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 60 [2020-10-14 04:45:19,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:19,418 INFO L225 Difference]: With dead ends: 76 [2020-10-14 04:45:19,419 INFO L226 Difference]: Without dead ends: 69 [2020-10-14 04:45:19,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-14 04:45:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-14 04:45:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2020-10-14 04:45:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-14 04:45:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-14 04:45:19,424 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 60 [2020-10-14 04:45:19,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:19,424 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-14 04:45:19,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 04:45:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-14 04:45:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-14 04:45:19,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:19,426 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:19,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 04:45:19,426 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:19,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:19,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1240087016, now seen corresponding path program 11 times [2020-10-14 04:45:19,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:19,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634946679] [2020-10-14 04:45:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:19,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:19,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:19,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 04:45:19,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:19,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-14 04:45:19,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:19,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 04:45:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:19,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 04:45:19,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:19,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:19,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:19,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:19,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:19,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:19,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:19,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:19,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:19,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:19,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:19,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634946679] [2020-10-14 04:45:19,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:19,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-14 04:45:19,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407202601] [2020-10-14 04:45:19,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-14 04:45:19,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:19,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-14 04:45:19,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:45:19,967 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 17 states. [2020-10-14 04:45:20,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:20,036 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2020-10-14 04:45:20,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 04:45:20,037 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 64 [2020-10-14 04:45:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:20,037 INFO L225 Difference]: With dead ends: 80 [2020-10-14 04:45:20,038 INFO L226 Difference]: Without dead ends: 73 [2020-10-14 04:45:20,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-14 04:45:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-14 04:45:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2020-10-14 04:45:20,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-14 04:45:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-10-14 04:45:20,043 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 64 [2020-10-14 04:45:20,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:20,043 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-10-14 04:45:20,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-14 04:45:20,043 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-10-14 04:45:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 04:45:20,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:20,044 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:20,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 04:45:20,045 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:20,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1649364639, now seen corresponding path program 12 times [2020-10-14 04:45:20,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:20,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119178560] [2020-10-14 04:45:20,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:20,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:20,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:20,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 04:45:20,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:20,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-14 04:45:20,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:20,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-14 04:45:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:20,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 04:45:20,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:20,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:20,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:20,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:20,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:20,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:20,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:20,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:20,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:20,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:20,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119178560] [2020-10-14 04:45:20,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:20,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-14 04:45:20,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343563189] [2020-10-14 04:45:20,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-14 04:45:20,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-14 04:45:20,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:45:20,693 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 18 states. [2020-10-14 04:45:20,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:20,776 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2020-10-14 04:45:20,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 04:45:20,777 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 68 [2020-10-14 04:45:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:20,778 INFO L225 Difference]: With dead ends: 84 [2020-10-14 04:45:20,778 INFO L226 Difference]: Without dead ends: 77 [2020-10-14 04:45:20,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-14 04:45:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-14 04:45:20,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2020-10-14 04:45:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-14 04:45:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-14 04:45:20,783 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 68 [2020-10-14 04:45:20,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:20,784 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-14 04:45:20,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-14 04:45:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-14 04:45:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 04:45:20,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:20,785 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:20,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 04:45:20,785 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:20,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:20,785 INFO L82 PathProgramCache]: Analyzing trace with hash -839697498, now seen corresponding path program 13 times [2020-10-14 04:45:20,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:20,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151375216] [2020-10-14 04:45:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:20,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:21,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:21,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 04:45:21,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:21,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-14 04:45:21,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:21,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 04:45:21,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:21,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 04:45:21,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:21,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:21,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:21,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:21,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:21,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:21,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:21,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:21,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:21,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151375216] [2020-10-14 04:45:21,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:21,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 04:45:21,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438443188] [2020-10-14 04:45:21,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 04:45:21,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:21,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 04:45:21,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:45:21,410 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 19 states. [2020-10-14 04:45:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:21,500 INFO L93 Difference]: Finished difference Result 88 states and 90 transitions. [2020-10-14 04:45:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 04:45:21,500 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2020-10-14 04:45:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:21,501 INFO L225 Difference]: With dead ends: 88 [2020-10-14 04:45:21,501 INFO L226 Difference]: Without dead ends: 81 [2020-10-14 04:45:21,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-14 04:45:21,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-14 04:45:21,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2020-10-14 04:45:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-14 04:45:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-10-14 04:45:21,506 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 72 [2020-10-14 04:45:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:21,507 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-10-14 04:45:21,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 04:45:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-10-14 04:45:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-14 04:45:21,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:21,508 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:21,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 04:45:21,508 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1136964307, now seen corresponding path program 14 times [2020-10-14 04:45:21,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:21,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670203352] [2020-10-14 04:45:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:21,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:21,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:21,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 04:45:21,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:21,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 04:45:21,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:22,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:22,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:22,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:22,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:22,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:22,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:22,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:22,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670203352] [2020-10-14 04:45:22,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:22,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 04:45:22,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353226957] [2020-10-14 04:45:22,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 04:45:22,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:22,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 04:45:22,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:45:22,182 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 20 states. [2020-10-14 04:45:22,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:22,266 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2020-10-14 04:45:22,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 04:45:22,266 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 76 [2020-10-14 04:45:22,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:22,267 INFO L225 Difference]: With dead ends: 92 [2020-10-14 04:45:22,268 INFO L226 Difference]: Without dead ends: 85 [2020-10-14 04:45:22,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-14 04:45:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-14 04:45:22,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2020-10-14 04:45:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-14 04:45:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2020-10-14 04:45:22,273 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 76 [2020-10-14 04:45:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:22,273 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2020-10-14 04:45:22,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 04:45:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2020-10-14 04:45:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-14 04:45:22,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:22,274 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:22,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 04:45:22,274 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:22,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1031881524, now seen corresponding path program 15 times [2020-10-14 04:45:22,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:22,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737025223] [2020-10-14 04:45:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:22,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:22,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 04:45:22,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-14 04:45:22,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:22,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 04:45:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 04:45:22,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:23,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:23,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:23,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:23,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:23,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:23,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:23,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:23,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:23,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737025223] [2020-10-14 04:45:23,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:23,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-14 04:45:23,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105916495] [2020-10-14 04:45:23,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-14 04:45:23,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:23,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-14 04:45:23,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:45:23,272 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand 21 states. [2020-10-14 04:45:23,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:23,355 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2020-10-14 04:45:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 04:45:23,356 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 80 [2020-10-14 04:45:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:23,357 INFO L225 Difference]: With dead ends: 96 [2020-10-14 04:45:23,357 INFO L226 Difference]: Without dead ends: 89 [2020-10-14 04:45:23,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2020-10-14 04:45:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-14 04:45:23,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2020-10-14 04:45:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-14 04:45:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-10-14 04:45:23,362 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 80 [2020-10-14 04:45:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:23,363 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-10-14 04:45:23,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-14 04:45:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-10-14 04:45:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 04:45:23,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:23,364 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:23,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 04:45:23,364 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:23,364 INFO L82 PathProgramCache]: Analyzing trace with hash 524213691, now seen corresponding path program 16 times [2020-10-14 04:45:23,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:23,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874889780] [2020-10-14 04:45:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:23,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:23,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:23,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 04:45:23,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:23,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-14 04:45:23,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:23,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 04:45:23,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 04:45:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:24,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:24,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:24,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:24,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:24,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:24,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:24,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:24,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874889780] [2020-10-14 04:45:24,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:24,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-14 04:45:24,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102480486] [2020-10-14 04:45:24,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-14 04:45:24,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:24,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-14 04:45:24,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:45:24,282 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 22 states. [2020-10-14 04:45:24,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:24,372 INFO L93 Difference]: Finished difference Result 100 states and 102 transitions. [2020-10-14 04:45:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 04:45:24,372 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2020-10-14 04:45:24,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:24,373 INFO L225 Difference]: With dead ends: 100 [2020-10-14 04:45:24,373 INFO L226 Difference]: Without dead ends: 93 [2020-10-14 04:45:24,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2020-10-14 04:45:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-14 04:45:24,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2020-10-14 04:45:24,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-14 04:45:24,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-10-14 04:45:24,378 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 84 [2020-10-14 04:45:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:24,380 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-10-14 04:45:24,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-14 04:45:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-10-14 04:45:24,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 04:45:24,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:24,381 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:24,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 04:45:24,381 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:24,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:24,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1544412354, now seen corresponding path program 17 times [2020-10-14 04:45:24,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:24,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562739516] [2020-10-14 04:45:24,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:24,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:24,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:24,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 04:45:24,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:24,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-14 04:45:24,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:24,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-14 04:45:24,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 04:45:24,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:25,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:25,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:25,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:25,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:25,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:25,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:25,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:25,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:25,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:25,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:25,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:25,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562739516] [2020-10-14 04:45:25,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:25,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-14 04:45:25,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470012117] [2020-10-14 04:45:25,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-14 04:45:25,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:25,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-14 04:45:25,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:45:25,384 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 23 states. [2020-10-14 04:45:25,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:25,535 INFO L93 Difference]: Finished difference Result 104 states and 106 transitions. [2020-10-14 04:45:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 04:45:25,538 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2020-10-14 04:45:25,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:25,540 INFO L225 Difference]: With dead ends: 104 [2020-10-14 04:45:25,540 INFO L226 Difference]: Without dead ends: 97 [2020-10-14 04:45:25,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2020-10-14 04:45:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-14 04:45:25,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2020-10-14 04:45:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-14 04:45:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-10-14 04:45:25,555 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 88 [2020-10-14 04:45:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:25,555 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-10-14 04:45:25,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-14 04:45:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-10-14 04:45:25,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 04:45:25,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:25,557 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:25,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 04:45:25,562 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:25,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:25,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1951924151, now seen corresponding path program 18 times [2020-10-14 04:45:25,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:25,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757528902] [2020-10-14 04:45:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:25,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:26,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:26,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 04:45:26,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 800 [2020-10-14 04:45:26,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:26,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 04:45:26,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:26,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 04:45:26,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:26,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:26,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:26,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:26,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:26,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:26,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:26,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:26,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757528902] [2020-10-14 04:45:26,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:26,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-14 04:45:26,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776658764] [2020-10-14 04:45:26,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-14 04:45:26,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:26,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-14 04:45:26,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:45:26,857 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 24 states. [2020-10-14 04:45:26,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:26,959 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2020-10-14 04:45:26,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 04:45:26,959 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 92 [2020-10-14 04:45:26,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:26,960 INFO L225 Difference]: With dead ends: 108 [2020-10-14 04:45:26,960 INFO L226 Difference]: Without dead ends: 101 [2020-10-14 04:45:26,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2020-10-14 04:45:26,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-14 04:45:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2020-10-14 04:45:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-14 04:45:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-10-14 04:45:26,966 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 92 [2020-10-14 04:45:26,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:26,966 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-10-14 04:45:26,966 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-14 04:45:26,966 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-10-14 04:45:26,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 04:45:26,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:26,967 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:26,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 04:45:26,968 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:26,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1390872656, now seen corresponding path program 19 times [2020-10-14 04:45:26,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:26,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725586526] [2020-10-14 04:45:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:27,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:27,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:27,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 04:45:27,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:27,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-10-14 04:45:27,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:27,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-14 04:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:27,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 04:45:27,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:28,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:28,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:28,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:28,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:28,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:28,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:28,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:28,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:28,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725586526] [2020-10-14 04:45:28,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:28,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-14 04:45:28,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440631147] [2020-10-14 04:45:28,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-14 04:45:28,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:28,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-14 04:45:28,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:45:28,080 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 25 states. [2020-10-14 04:45:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:28,205 INFO L93 Difference]: Finished difference Result 112 states and 114 transitions. [2020-10-14 04:45:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 04:45:28,206 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 96 [2020-10-14 04:45:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:28,207 INFO L225 Difference]: With dead ends: 112 [2020-10-14 04:45:28,207 INFO L226 Difference]: Without dead ends: 105 [2020-10-14 04:45:28,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=278, Invalid=322, Unknown=0, NotChecked=0, Total=600 [2020-10-14 04:45:28,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-14 04:45:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2020-10-14 04:45:28,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-14 04:45:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2020-10-14 04:45:28,216 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 96 [2020-10-14 04:45:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:28,216 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2020-10-14 04:45:28,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-14 04:45:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2020-10-14 04:45:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 04:45:28,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:28,218 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:28,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 04:45:28,221 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:28,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:28,222 INFO L82 PathProgramCache]: Analyzing trace with hash -742083369, now seen corresponding path program 20 times [2020-10-14 04:45:28,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:28,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505748040] [2020-10-14 04:45:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:28,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:29,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:29,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-14 04:45:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:29,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 04:45:29,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:29,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:29,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:29,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:29,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:29,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:29,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:29,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:29,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505748040] [2020-10-14 04:45:29,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:29,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-14 04:45:29,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711542402] [2020-10-14 04:45:29,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-14 04:45:29,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:29,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-14 04:45:29,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-14 04:45:29,395 INFO L87 Difference]: Start difference. First operand 102 states and 103 transitions. Second operand 26 states. [2020-10-14 04:45:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:29,511 INFO L93 Difference]: Finished difference Result 116 states and 118 transitions. [2020-10-14 04:45:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 04:45:29,512 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 100 [2020-10-14 04:45:29,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:29,513 INFO L225 Difference]: With dead ends: 116 [2020-10-14 04:45:29,513 INFO L226 Difference]: Without dead ends: 109 [2020-10-14 04:45:29,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2020-10-14 04:45:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-14 04:45:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-10-14 04:45:29,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-14 04:45:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 107 transitions. [2020-10-14 04:45:29,518 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 107 transitions. Word has length 100 [2020-10-14 04:45:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:29,518 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 107 transitions. [2020-10-14 04:45:29,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-14 04:45:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 107 transitions. [2020-10-14 04:45:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 04:45:29,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:29,519 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:29,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 04:45:29,520 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:29,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:29,520 INFO L82 PathProgramCache]: Analyzing trace with hash 492488158, now seen corresponding path program 21 times [2020-10-14 04:45:29,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:29,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938485859] [2020-10-14 04:45:29,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:30,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 04:45:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-10-14 04:45:30,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:30,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-14 04:45:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-14 04:45:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:30,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:30,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:30,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 04:45:30,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:30,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:30,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938485859] [2020-10-14 04:45:30,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:30,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 04:45:30,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689670249] [2020-10-14 04:45:30,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 04:45:30,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:30,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 04:45:30,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-14 04:45:30,768 INFO L87 Difference]: Start difference. First operand 106 states and 107 transitions. Second operand 27 states. [2020-10-14 04:45:30,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:30,885 INFO L93 Difference]: Finished difference Result 120 states and 122 transitions. [2020-10-14 04:45:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 04:45:30,885 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 104 [2020-10-14 04:45:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:30,886 INFO L225 Difference]: With dead ends: 120 [2020-10-14 04:45:30,887 INFO L226 Difference]: Without dead ends: 113 [2020-10-14 04:45:30,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=375, Unknown=0, NotChecked=0, Total=702 [2020-10-14 04:45:30,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-14 04:45:30,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2020-10-14 04:45:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-14 04:45:30,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 111 transitions. [2020-10-14 04:45:30,893 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 111 transitions. Word has length 104 [2020-10-14 04:45:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:30,893 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 111 transitions. [2020-10-14 04:45:30,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 04:45:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 111 transitions. [2020-10-14 04:45:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 04:45:30,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:30,895 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:30,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 04:45:30,895 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:30,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:30,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1679623323, now seen corresponding path program 22 times [2020-10-14 04:45:30,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:30,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546314032] [2020-10-14 04:45:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:30,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:31,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 04:45:31,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:31,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-14 04:45:31,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:31,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-14 04:45:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:31,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 04:45:31,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:32,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:32,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546314032] [2020-10-14 04:45:32,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:32,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 04:45:32,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014068725] [2020-10-14 04:45:32,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 04:45:32,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:32,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 04:45:32,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:45:32,171 INFO L87 Difference]: Start difference. First operand 110 states and 111 transitions. Second operand 28 states. [2020-10-14 04:45:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:32,290 INFO L93 Difference]: Finished difference Result 124 states and 126 transitions. [2020-10-14 04:45:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 04:45:32,291 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 108 [2020-10-14 04:45:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:32,292 INFO L225 Difference]: With dead ends: 124 [2020-10-14 04:45:32,293 INFO L226 Difference]: Without dead ends: 117 [2020-10-14 04:45:32,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=353, Invalid=403, Unknown=0, NotChecked=0, Total=756 [2020-10-14 04:45:32,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-14 04:45:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2020-10-14 04:45:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-14 04:45:32,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2020-10-14 04:45:32,298 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 108 [2020-10-14 04:45:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:32,298 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2020-10-14 04:45:32,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 04:45:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2020-10-14 04:45:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 04:45:32,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:32,300 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:32,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 04:45:32,300 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:32,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:32,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2001267348, now seen corresponding path program 23 times [2020-10-14 04:45:32,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:32,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728569042] [2020-10-14 04:45:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:32,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:33,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:33,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-14 04:45:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:33,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 04:45:33,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:33,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:33,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:33,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:33,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:33,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:33,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728569042] [2020-10-14 04:45:33,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:33,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 04:45:33,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497792762] [2020-10-14 04:45:33,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 04:45:33,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:33,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 04:45:33,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:45:33,554 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand 29 states. [2020-10-14 04:45:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:33,717 INFO L93 Difference]: Finished difference Result 128 states and 130 transitions. [2020-10-14 04:45:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-14 04:45:33,717 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 112 [2020-10-14 04:45:33,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:33,718 INFO L225 Difference]: With dead ends: 128 [2020-10-14 04:45:33,718 INFO L226 Difference]: Without dead ends: 121 [2020-10-14 04:45:33,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=380, Invalid=432, Unknown=0, NotChecked=0, Total=812 [2020-10-14 04:45:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-14 04:45:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2020-10-14 04:45:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-14 04:45:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2020-10-14 04:45:33,724 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 112 [2020-10-14 04:45:33,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:33,724 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2020-10-14 04:45:33,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 04:45:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2020-10-14 04:45:33,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 04:45:33,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:33,726 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:33,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 04:45:33,726 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:33,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:33,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1515246579, now seen corresponding path program 24 times [2020-10-14 04:45:33,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:33,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221387968] [2020-10-14 04:45:33,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:33,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:34,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-14 04:45:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:34,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 04:45:34,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:34,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:34,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:34,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:34,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:34,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:34,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:34,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:34,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:34,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:34,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221387968] [2020-10-14 04:45:34,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:34,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-14 04:45:34,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097506300] [2020-10-14 04:45:34,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-14 04:45:34,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:34,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-14 04:45:34,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:45:34,942 INFO L87 Difference]: Start difference. First operand 118 states and 119 transitions. Second operand 30 states. [2020-10-14 04:45:35,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:35,094 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2020-10-14 04:45:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 04:45:35,095 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 116 [2020-10-14 04:45:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:35,096 INFO L225 Difference]: With dead ends: 132 [2020-10-14 04:45:35,096 INFO L226 Difference]: Without dead ends: 125 [2020-10-14 04:45:35,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=408, Invalid=462, Unknown=0, NotChecked=0, Total=870 [2020-10-14 04:45:35,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-14 04:45:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 122. [2020-10-14 04:45:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-14 04:45:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2020-10-14 04:45:35,102 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 116 [2020-10-14 04:45:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:35,102 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2020-10-14 04:45:35,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-14 04:45:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2020-10-14 04:45:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-14 04:45:35,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:35,104 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:35,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 04:45:35,104 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:35,105 INFO L82 PathProgramCache]: Analyzing trace with hash 877262586, now seen corresponding path program 25 times [2020-10-14 04:45:35,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:35,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083963334] [2020-10-14 04:45:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:35,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:36,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:36,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 04:45:36,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-10-14 04:45:36,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:36,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 04:45:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 04:45:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:36,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:36,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:36,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:36,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:36,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:36,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:36,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:36,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083963334] [2020-10-14 04:45:36,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:36,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 04:45:36,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302937699] [2020-10-14 04:45:36,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 04:45:36,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:36,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 04:45:36,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-14 04:45:36,730 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand 31 states. [2020-10-14 04:45:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:36,864 INFO L93 Difference]: Finished difference Result 136 states and 138 transitions. [2020-10-14 04:45:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-14 04:45:36,865 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 120 [2020-10-14 04:45:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:36,866 INFO L225 Difference]: With dead ends: 136 [2020-10-14 04:45:36,866 INFO L226 Difference]: Without dead ends: 129 [2020-10-14 04:45:36,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=437, Invalid=493, Unknown=0, NotChecked=0, Total=930 [2020-10-14 04:45:36,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-14 04:45:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2020-10-14 04:45:36,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-14 04:45:36,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 127 transitions. [2020-10-14 04:45:36,872 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 127 transitions. Word has length 120 [2020-10-14 04:45:36,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:36,872 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 127 transitions. [2020-10-14 04:45:36,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 04:45:36,873 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 127 transitions. [2020-10-14 04:45:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 04:45:36,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:36,874 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:36,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 04:45:36,874 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:36,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:36,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1465663105, now seen corresponding path program 26 times [2020-10-14 04:45:36,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:36,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262689916] [2020-10-14 04:45:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:36,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:37,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:37,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-14 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-14 04:45:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 04:45:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:38,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:38,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:38,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:38,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:38,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:38,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:38,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262689916] [2020-10-14 04:45:38,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:38,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 04:45:38,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927647274] [2020-10-14 04:45:38,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 04:45:38,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 04:45:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-14 04:45:38,384 INFO L87 Difference]: Start difference. First operand 126 states and 127 transitions. Second operand 32 states. [2020-10-14 04:45:38,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:38,510 INFO L93 Difference]: Finished difference Result 140 states and 142 transitions. [2020-10-14 04:45:38,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 04:45:38,510 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 124 [2020-10-14 04:45:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:38,511 INFO L225 Difference]: With dead ends: 140 [2020-10-14 04:45:38,511 INFO L226 Difference]: Without dead ends: 133 [2020-10-14 04:45:38,512 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=467, Invalid=525, Unknown=0, NotChecked=0, Total=992 [2020-10-14 04:45:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-14 04:45:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-10-14 04:45:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-14 04:45:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2020-10-14 04:45:38,521 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 124 [2020-10-14 04:45:38,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:38,522 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2020-10-14 04:45:38,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 04:45:38,522 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2020-10-14 04:45:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 04:45:38,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:38,524 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:38,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 04:45:38,524 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:38,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:38,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1855886712, now seen corresponding path program 27 times [2020-10-14 04:45:38,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:38,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383579909] [2020-10-14 04:45:38,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:38,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:39,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:39,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 04:45:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:39,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:39,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:39,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:39,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:39,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:39,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:39,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:39,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:39,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:39,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:45:39,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:39,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383579909] [2020-10-14 04:45:39,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:39,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-14 04:45:39,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491710437] [2020-10-14 04:45:39,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-14 04:45:39,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:39,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-14 04:45:39,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 04:45:39,822 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand 33 states. [2020-10-14 04:45:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:40,008 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2020-10-14 04:45:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-14 04:45:40,008 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 128 [2020-10-14 04:45:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:40,010 INFO L225 Difference]: With dead ends: 144 [2020-10-14 04:45:40,010 INFO L226 Difference]: Without dead ends: 137 [2020-10-14 04:45:40,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=498, Invalid=558, Unknown=0, NotChecked=0, Total=1056 [2020-10-14 04:45:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-14 04:45:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2020-10-14 04:45:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-14 04:45:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 135 transitions. [2020-10-14 04:45:40,020 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 135 transitions. Word has length 128 [2020-10-14 04:45:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:40,021 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 135 transitions. [2020-10-14 04:45:40,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-14 04:45:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 135 transitions. [2020-10-14 04:45:40,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-14 04:45:40,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:40,023 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:40,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 04:45:40,023 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:40,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1387054321, now seen corresponding path program 28 times [2020-10-14 04:45:40,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:40,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578036145] [2020-10-14 04:45:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:40,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:40,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:40,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 04:45:40,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 04:45:40,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:41,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:41,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:41,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578036145] [2020-10-14 04:45:41,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:41,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-14 04:45:41,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797344982] [2020-10-14 04:45:41,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-14 04:45:41,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-14 04:45:41,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-14 04:45:41,551 INFO L87 Difference]: Start difference. First operand 134 states and 135 transitions. Second operand 34 states. [2020-10-14 04:45:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:41,706 INFO L93 Difference]: Finished difference Result 148 states and 150 transitions. [2020-10-14 04:45:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-14 04:45:41,706 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 132 [2020-10-14 04:45:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:41,708 INFO L225 Difference]: With dead ends: 148 [2020-10-14 04:45:41,708 INFO L226 Difference]: Without dead ends: 141 [2020-10-14 04:45:41,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=530, Invalid=592, Unknown=0, NotChecked=0, Total=1122 [2020-10-14 04:45:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-14 04:45:41,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2020-10-14 04:45:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-14 04:45:41,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 139 transitions. [2020-10-14 04:45:41,714 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 139 transitions. Word has length 132 [2020-10-14 04:45:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:41,714 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 139 transitions. [2020-10-14 04:45:41,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-14 04:45:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 139 transitions. [2020-10-14 04:45:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-14 04:45:41,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:41,716 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:41,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 04:45:41,716 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:41,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:41,716 INFO L82 PathProgramCache]: Analyzing trace with hash -481595370, now seen corresponding path program 29 times [2020-10-14 04:45:41,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:41,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104449831] [2020-10-14 04:45:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 836 [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:42,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-14 04:45:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 04:45:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:43,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:43,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:43,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:43,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:43,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:43,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:43,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:43,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:43,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:43,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104449831] [2020-10-14 04:45:43,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:43,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-14 04:45:43,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570203000] [2020-10-14 04:45:43,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-14 04:45:43,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:43,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-14 04:45:43,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:45:43,236 INFO L87 Difference]: Start difference. First operand 138 states and 139 transitions. Second operand 35 states. [2020-10-14 04:45:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:43,389 INFO L93 Difference]: Finished difference Result 152 states and 154 transitions. [2020-10-14 04:45:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-14 04:45:43,389 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 136 [2020-10-14 04:45:43,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:43,391 INFO L225 Difference]: With dead ends: 152 [2020-10-14 04:45:43,391 INFO L226 Difference]: Without dead ends: 145 [2020-10-14 04:45:43,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=563, Invalid=627, Unknown=0, NotChecked=0, Total=1190 [2020-10-14 04:45:43,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-14 04:45:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2020-10-14 04:45:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 04:45:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 143 transitions. [2020-10-14 04:45:43,400 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 143 transitions. Word has length 136 [2020-10-14 04:45:43,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:43,400 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 143 transitions. [2020-10-14 04:45:43,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-14 04:45:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 143 transitions. [2020-10-14 04:45:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-14 04:45:43,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:43,401 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:43,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-14 04:45:43,402 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:43,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1216596381, now seen corresponding path program 30 times [2020-10-14 04:45:43,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:43,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680376058] [2020-10-14 04:45:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:44,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:44,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 04:45:44,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:44,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-14 04:45:44,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:44,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 04:45:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 04:45:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:44,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:44,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:44,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:44,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:44,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:44,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:44,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680376058] [2020-10-14 04:45:44,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:44,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-14 04:45:44,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570411247] [2020-10-14 04:45:44,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-14 04:45:44,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:44,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-14 04:45:44,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:45:44,877 INFO L87 Difference]: Start difference. First operand 142 states and 143 transitions. Second operand 36 states. [2020-10-14 04:45:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:45,026 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2020-10-14 04:45:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-14 04:45:45,027 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 140 [2020-10-14 04:45:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:45,028 INFO L225 Difference]: With dead ends: 156 [2020-10-14 04:45:45,028 INFO L226 Difference]: Without dead ends: 149 [2020-10-14 04:45:45,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=597, Invalid=663, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 04:45:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-14 04:45:45,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2020-10-14 04:45:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-14 04:45:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 147 transitions. [2020-10-14 04:45:45,035 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 147 transitions. Word has length 140 [2020-10-14 04:45:45,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:45,035 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 147 transitions. [2020-10-14 04:45:45,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-14 04:45:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 147 transitions. [2020-10-14 04:45:45,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-14 04:45:45,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:45,037 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:45,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-14 04:45:45,037 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:45,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:45,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1062602660, now seen corresponding path program 31 times [2020-10-14 04:45:45,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:45,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051226808] [2020-10-14 04:45:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:45,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:45,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 04:45:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 868 [2020-10-14 04:45:45,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:45,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 04:45:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-14 04:45:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:46,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:46,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:46,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:46,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:46,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:46,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:46,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:46,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:46,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:46,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:46,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051226808] [2020-10-14 04:45:46,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:46,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-14 04:45:46,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021945814] [2020-10-14 04:45:46,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-14 04:45:46,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:46,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-14 04:45:46,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 04:45:46,669 INFO L87 Difference]: Start difference. First operand 146 states and 147 transitions. Second operand 37 states. [2020-10-14 04:45:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:46,835 INFO L93 Difference]: Finished difference Result 160 states and 162 transitions. [2020-10-14 04:45:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-14 04:45:46,835 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 144 [2020-10-14 04:45:46,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:46,836 INFO L225 Difference]: With dead ends: 160 [2020-10-14 04:45:46,837 INFO L226 Difference]: Without dead ends: 153 [2020-10-14 04:45:46,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=632, Invalid=700, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 04:45:46,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-14 04:45:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2020-10-14 04:45:46,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-14 04:45:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 151 transitions. [2020-10-14 04:45:46,844 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 151 transitions. Word has length 144 [2020-10-14 04:45:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:46,845 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 151 transitions. [2020-10-14 04:45:46,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-14 04:45:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 151 transitions. [2020-10-14 04:45:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-14 04:45:46,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:46,846 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:46,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-14 04:45:46,846 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:46,847 INFO L82 PathProgramCache]: Analyzing trace with hash -415503829, now seen corresponding path program 32 times [2020-10-14 04:45:46,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:46,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357657336] [2020-10-14 04:45:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:46,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:47,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:47,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 04:45:47,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:47,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-10-14 04:45:47,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:47,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 04:45:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:47,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 04:45:47,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:48,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:48,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:48,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:48,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357657336] [2020-10-14 04:45:48,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:48,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-14 04:45:48,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931692349] [2020-10-14 04:45:48,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-14 04:45:48,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:48,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-14 04:45:48,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 04:45:48,600 INFO L87 Difference]: Start difference. First operand 150 states and 151 transitions. Second operand 38 states. [2020-10-14 04:45:48,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:48,753 INFO L93 Difference]: Finished difference Result 164 states and 166 transitions. [2020-10-14 04:45:48,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-14 04:45:48,754 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 148 [2020-10-14 04:45:48,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:48,755 INFO L225 Difference]: With dead ends: 164 [2020-10-14 04:45:48,756 INFO L226 Difference]: Without dead ends: 157 [2020-10-14 04:45:48,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=668, Invalid=738, Unknown=0, NotChecked=0, Total=1406 [2020-10-14 04:45:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-14 04:45:48,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2020-10-14 04:45:48,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-14 04:45:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2020-10-14 04:45:48,763 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 148 [2020-10-14 04:45:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:48,763 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2020-10-14 04:45:48,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-14 04:45:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2020-10-14 04:45:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-14 04:45:48,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:48,764 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:48,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-14 04:45:48,765 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:48,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1932578510, now seen corresponding path program 33 times [2020-10-14 04:45:48,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:48,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092038940] [2020-10-14 04:45:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:48,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:49,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:49,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 04:45:49,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:49,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 877 [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 04:45:49,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:50,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:50,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:50,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:50,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:50,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:50,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092038940] [2020-10-14 04:45:50,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:50,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-14 04:45:50,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817245144] [2020-10-14 04:45:50,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-14 04:45:50,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:50,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-14 04:45:50,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 04:45:50,487 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand 39 states. [2020-10-14 04:45:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:50,665 INFO L93 Difference]: Finished difference Result 168 states and 170 transitions. [2020-10-14 04:45:50,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-14 04:45:50,665 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 152 [2020-10-14 04:45:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:50,667 INFO L225 Difference]: With dead ends: 168 [2020-10-14 04:45:50,667 INFO L226 Difference]: Without dead ends: 161 [2020-10-14 04:45:50,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=705, Invalid=777, Unknown=0, NotChecked=0, Total=1482 [2020-10-14 04:45:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-10-14 04:45:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2020-10-14 04:45:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-14 04:45:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 159 transitions. [2020-10-14 04:45:50,678 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 159 transitions. Word has length 152 [2020-10-14 04:45:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:50,679 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 159 transitions. [2020-10-14 04:45:50,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-14 04:45:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 159 transitions. [2020-10-14 04:45:50,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-14 04:45:50,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:50,680 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:50,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-14 04:45:50,680 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:50,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:50,681 INFO L82 PathProgramCache]: Analyzing trace with hash 432643257, now seen corresponding path program 34 times [2020-10-14 04:45:50,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:50,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922861417] [2020-10-14 04:45:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:51,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:51,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 04:45:51,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:52,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:52,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:52,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:52,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:52,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922861417] [2020-10-14 04:45:52,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:52,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-14 04:45:52,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679046403] [2020-10-14 04:45:52,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-14 04:45:52,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:52,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-14 04:45:52,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 04:45:52,479 INFO L87 Difference]: Start difference. First operand 158 states and 159 transitions. Second operand 40 states. [2020-10-14 04:45:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:52,659 INFO L93 Difference]: Finished difference Result 172 states and 174 transitions. [2020-10-14 04:45:52,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 04:45:52,659 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 156 [2020-10-14 04:45:52,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:52,661 INFO L225 Difference]: With dead ends: 172 [2020-10-14 04:45:52,661 INFO L226 Difference]: Without dead ends: 165 [2020-10-14 04:45:52,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=743, Invalid=817, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 04:45:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-14 04:45:52,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2020-10-14 04:45:52,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-14 04:45:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 163 transitions. [2020-10-14 04:45:52,667 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 163 transitions. Word has length 156 [2020-10-14 04:45:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:52,667 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 163 transitions. [2020-10-14 04:45:52,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-14 04:45:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 163 transitions. [2020-10-14 04:45:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 04:45:52,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:52,669 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:52,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-14 04:45:52,669 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:52,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:52,669 INFO L82 PathProgramCache]: Analyzing trace with hash -2063274816, now seen corresponding path program 35 times [2020-10-14 04:45:52,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:52,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184564346] [2020-10-14 04:45:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:53,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:53,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 04:45:53,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 04:45:53,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:54,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:54,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:54,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:54,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:54,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:54,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:54,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184564346] [2020-10-14 04:45:54,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:54,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-14 04:45:54,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167478738] [2020-10-14 04:45:54,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-14 04:45:54,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:54,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-14 04:45:54,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:45:54,554 INFO L87 Difference]: Start difference. First operand 162 states and 163 transitions. Second operand 41 states. [2020-10-14 04:45:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:54,722 INFO L93 Difference]: Finished difference Result 176 states and 178 transitions. [2020-10-14 04:45:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-14 04:45:54,723 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 160 [2020-10-14 04:45:54,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:54,725 INFO L225 Difference]: With dead ends: 176 [2020-10-14 04:45:54,725 INFO L226 Difference]: Without dead ends: 169 [2020-10-14 04:45:54,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=782, Invalid=858, Unknown=0, NotChecked=0, Total=1640 [2020-10-14 04:45:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-14 04:45:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2020-10-14 04:45:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-14 04:45:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 167 transitions. [2020-10-14 04:45:54,732 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 167 transitions. Word has length 160 [2020-10-14 04:45:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:54,733 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 167 transitions. [2020-10-14 04:45:54,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-14 04:45:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 167 transitions. [2020-10-14 04:45:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-14 04:45:54,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:54,734 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:54,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-14 04:45:54,734 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:54,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1115349319, now seen corresponding path program 36 times [2020-10-14 04:45:54,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:54,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383712367] [2020-10-14 04:45:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:54,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:55,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 04:45:55,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:56,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:56,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:56,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383712367] [2020-10-14 04:45:56,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:56,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-14 04:45:56,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583200227] [2020-10-14 04:45:56,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-14 04:45:56,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:56,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-14 04:45:56,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=822, Invalid=900, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 04:45:56,755 INFO L87 Difference]: Start difference. First operand 166 states and 167 transitions. Second operand 42 states. [2020-10-14 04:45:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:56,950 INFO L93 Difference]: Finished difference Result 180 states and 182 transitions. [2020-10-14 04:45:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-14 04:45:56,950 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 164 [2020-10-14 04:45:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:56,952 INFO L225 Difference]: With dead ends: 180 [2020-10-14 04:45:56,952 INFO L226 Difference]: Without dead ends: 173 [2020-10-14 04:45:56,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=822, Invalid=900, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 04:45:56,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-14 04:45:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2020-10-14 04:45:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-14 04:45:56,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 171 transitions. [2020-10-14 04:45:56,959 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 171 transitions. Word has length 164 [2020-10-14 04:45:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:56,959 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 171 transitions. [2020-10-14 04:45:56,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-14 04:45:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 171 transitions. [2020-10-14 04:45:56,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-14 04:45:56,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:56,961 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:56,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-14 04:45:56,961 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:56,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1287308722, now seen corresponding path program 37 times [2020-10-14 04:45:56,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:56,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623503285] [2020-10-14 04:45:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:57,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:58,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:58,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1061 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 04:45:58,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:45:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:59,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:45:59,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:45:59,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:45:59,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:45:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:45:59,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:45:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:45:59,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623503285] [2020-10-14 04:45:59,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:45:59,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-14 04:45:59,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448205499] [2020-10-14 04:45:59,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-14 04:45:59,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:45:59,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-14 04:45:59,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=863, Invalid=943, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 04:45:59,057 INFO L87 Difference]: Start difference. First operand 170 states and 171 transitions. Second operand 43 states. [2020-10-14 04:45:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:45:59,263 INFO L93 Difference]: Finished difference Result 184 states and 186 transitions. [2020-10-14 04:45:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 04:45:59,263 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 168 [2020-10-14 04:45:59,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:45:59,265 INFO L225 Difference]: With dead ends: 184 [2020-10-14 04:45:59,265 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 04:45:59,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=863, Invalid=943, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 04:45:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 04:45:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2020-10-14 04:45:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-14 04:45:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 175 transitions. [2020-10-14 04:45:59,272 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 175 transitions. Word has length 168 [2020-10-14 04:45:59,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:45:59,272 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 175 transitions. [2020-10-14 04:45:59,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-14 04:45:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 175 transitions. [2020-10-14 04:45:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-14 04:45:59,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:45:59,273 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:45:59,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-14 04:45:59,273 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:45:59,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:45:59,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1784825899, now seen corresponding path program 38 times [2020-10-14 04:45:59,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:45:59,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618041179] [2020-10-14 04:45:59,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:45:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:45:59,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1102 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-14 04:46:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:01,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:01,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:01,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:01,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:01,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:01,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:01,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618041179] [2020-10-14 04:46:01,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:01,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-14 04:46:01,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454948916] [2020-10-14 04:46:01,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-14 04:46:01,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:01,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-14 04:46:01,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=905, Invalid=987, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 04:46:01,467 INFO L87 Difference]: Start difference. First operand 174 states and 175 transitions. Second operand 44 states. [2020-10-14 04:46:01,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:01,669 INFO L93 Difference]: Finished difference Result 188 states and 190 transitions. [2020-10-14 04:46:01,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-14 04:46:01,670 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 172 [2020-10-14 04:46:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:01,672 INFO L225 Difference]: With dead ends: 188 [2020-10-14 04:46:01,672 INFO L226 Difference]: Without dead ends: 181 [2020-10-14 04:46:01,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=905, Invalid=987, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 04:46:01,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-14 04:46:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2020-10-14 04:46:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-14 04:46:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 179 transitions. [2020-10-14 04:46:01,679 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 179 transitions. Word has length 172 [2020-10-14 04:46:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:01,680 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 179 transitions. [2020-10-14 04:46:01,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-14 04:46:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 179 transitions. [2020-10-14 04:46:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-14 04:46:01,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:01,681 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:01,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-14 04:46:01,682 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:01,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1960712668, now seen corresponding path program 39 times [2020-10-14 04:46:01,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:01,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882795987] [2020-10-14 04:46:01,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:01,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:02,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:02,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-14 04:46:02,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1179 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 04:46:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:03,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:03,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:03,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:03,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:03,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882795987] [2020-10-14 04:46:03,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:03,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-14 04:46:03,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115253092] [2020-10-14 04:46:03,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-14 04:46:03,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-14 04:46:03,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=948, Invalid=1032, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 04:46:03,948 INFO L87 Difference]: Start difference. First operand 178 states and 179 transitions. Second operand 45 states. [2020-10-14 04:46:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:04,128 INFO L93 Difference]: Finished difference Result 192 states and 194 transitions. [2020-10-14 04:46:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-14 04:46:04,129 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 176 [2020-10-14 04:46:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:04,131 INFO L225 Difference]: With dead ends: 192 [2020-10-14 04:46:04,131 INFO L226 Difference]: Without dead ends: 185 [2020-10-14 04:46:04,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=948, Invalid=1032, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 04:46:04,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-14 04:46:04,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2020-10-14 04:46:04,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-14 04:46:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2020-10-14 04:46:04,138 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 176 [2020-10-14 04:46:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:04,139 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2020-10-14 04:46:04,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-14 04:46:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2020-10-14 04:46:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-14 04:46:04,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:04,140 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:04,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-14 04:46:04,141 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:04,141 INFO L82 PathProgramCache]: Analyzing trace with hash 427827299, now seen corresponding path program 40 times [2020-10-14 04:46:04,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:04,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602172140] [2020-10-14 04:46:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:04,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:05,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:05,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 04:46:05,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:05,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1221 [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 04:46:05,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:06,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:06,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:06,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:06,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:06,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:06,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602172140] [2020-10-14 04:46:06,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:06,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-14 04:46:06,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527193870] [2020-10-14 04:46:06,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-14 04:46:06,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:06,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-14 04:46:06,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=992, Invalid=1078, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 04:46:06,531 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand 46 states. [2020-10-14 04:46:06,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:06,747 INFO L93 Difference]: Finished difference Result 196 states and 198 transitions. [2020-10-14 04:46:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-14 04:46:06,748 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 180 [2020-10-14 04:46:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:06,750 INFO L225 Difference]: With dead ends: 196 [2020-10-14 04:46:06,750 INFO L226 Difference]: Without dead ends: 189 [2020-10-14 04:46:06,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=992, Invalid=1078, Unknown=0, NotChecked=0, Total=2070 [2020-10-14 04:46:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-14 04:46:06,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2020-10-14 04:46:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-14 04:46:06,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 187 transitions. [2020-10-14 04:46:06,758 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 187 transitions. Word has length 180 [2020-10-14 04:46:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:06,758 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 187 transitions. [2020-10-14 04:46:06,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-14 04:46:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 187 transitions. [2020-10-14 04:46:06,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-14 04:46:06,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:06,760 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:06,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-14 04:46:06,760 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:06,761 INFO L82 PathProgramCache]: Analyzing trace with hash -115504278, now seen corresponding path program 41 times [2020-10-14 04:46:06,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:06,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429321263] [2020-10-14 04:46:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:08,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:08,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 04:46:08,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 04:46:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:09,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:09,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:09,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:09,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429321263] [2020-10-14 04:46:09,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:09,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-14 04:46:09,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924198133] [2020-10-14 04:46:09,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-14 04:46:09,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:09,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-14 04:46:09,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1037, Invalid=1125, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 04:46:09,260 INFO L87 Difference]: Start difference. First operand 186 states and 187 transitions. Second operand 47 states. [2020-10-14 04:46:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:09,461 INFO L93 Difference]: Finished difference Result 200 states and 202 transitions. [2020-10-14 04:46:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-14 04:46:09,461 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 184 [2020-10-14 04:46:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:09,464 INFO L225 Difference]: With dead ends: 200 [2020-10-14 04:46:09,464 INFO L226 Difference]: Without dead ends: 193 [2020-10-14 04:46:09,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1037, Invalid=1125, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 04:46:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-14 04:46:09,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2020-10-14 04:46:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-14 04:46:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 191 transitions. [2020-10-14 04:46:09,471 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 191 transitions. Word has length 184 [2020-10-14 04:46:09,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:09,472 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 191 transitions. [2020-10-14 04:46:09,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-14 04:46:09,472 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 191 transitions. [2020-10-14 04:46:09,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-14 04:46:09,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:09,473 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:09,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-14 04:46:09,474 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:09,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:09,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1502602511, now seen corresponding path program 42 times [2020-10-14 04:46:09,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:09,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180861651] [2020-10-14 04:46:09,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:09,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:10,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:10,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 04:46:10,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1366 [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 04:46:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:12,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:12,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:12,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:12,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:12,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:12,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180861651] [2020-10-14 04:46:12,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:12,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-14 04:46:12,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066220762] [2020-10-14 04:46:12,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-14 04:46:12,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:12,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-14 04:46:12,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=1173, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 04:46:12,130 INFO L87 Difference]: Start difference. First operand 190 states and 191 transitions. Second operand 48 states. [2020-10-14 04:46:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:12,326 INFO L93 Difference]: Finished difference Result 204 states and 206 transitions. [2020-10-14 04:46:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-14 04:46:12,327 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 188 [2020-10-14 04:46:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:12,328 INFO L225 Difference]: With dead ends: 204 [2020-10-14 04:46:12,328 INFO L226 Difference]: Without dead ends: 197 [2020-10-14 04:46:12,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1083, Invalid=1173, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 04:46:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-14 04:46:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2020-10-14 04:46:12,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-14 04:46:12,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 195 transitions. [2020-10-14 04:46:12,335 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 195 transitions. Word has length 188 [2020-10-14 04:46:12,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:12,336 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 195 transitions. [2020-10-14 04:46:12,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-14 04:46:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 195 transitions. [2020-10-14 04:46:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-14 04:46:12,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:12,337 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:12,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-14 04:46:12,338 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:12,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:12,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1095864056, now seen corresponding path program 43 times [2020-10-14 04:46:12,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:12,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192130918] [2020-10-14 04:46:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:12,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:14,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:14,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-14 04:46:14,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:14,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1720 [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 04:46:14,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:15,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:15,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:15,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:15,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:15,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:46:15,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:15,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:15,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:15,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:15,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192130918] [2020-10-14 04:46:15,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:15,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-14 04:46:15,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000738051] [2020-10-14 04:46:15,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-14 04:46:15,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:15,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-14 04:46:15,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1130, Invalid=1222, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 04:46:15,392 INFO L87 Difference]: Start difference. First operand 194 states and 195 transitions. Second operand 49 states. [2020-10-14 04:46:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:15,610 INFO L93 Difference]: Finished difference Result 208 states and 210 transitions. [2020-10-14 04:46:15,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-14 04:46:15,610 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 192 [2020-10-14 04:46:15,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:15,612 INFO L225 Difference]: With dead ends: 208 [2020-10-14 04:46:15,612 INFO L226 Difference]: Without dead ends: 201 [2020-10-14 04:46:15,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1130, Invalid=1222, Unknown=0, NotChecked=0, Total=2352 [2020-10-14 04:46:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-14 04:46:15,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2020-10-14 04:46:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-14 04:46:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2020-10-14 04:46:15,623 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 192 [2020-10-14 04:46:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:15,624 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2020-10-14 04:46:15,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-14 04:46:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2020-10-14 04:46:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-14 04:46:15,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:15,626 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:15,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-14 04:46:15,626 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:15,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:15,626 INFO L82 PathProgramCache]: Analyzing trace with hash -423909505, now seen corresponding path program 44 times [2020-10-14 04:46:15,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:15,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1313172482] [2020-10-14 04:46:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:15,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1481 [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:17,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-14 04:46:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 04:46:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:18,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:18,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:18,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1313172482] [2020-10-14 04:46:18,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:18,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-14 04:46:18,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019643460] [2020-10-14 04:46:18,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-14 04:46:18,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:18,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-14 04:46:18,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 04:46:18,479 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand 50 states. [2020-10-14 04:46:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:18,708 INFO L93 Difference]: Finished difference Result 212 states and 214 transitions. [2020-10-14 04:46:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-14 04:46:18,708 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 196 [2020-10-14 04:46:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:18,710 INFO L225 Difference]: With dead ends: 212 [2020-10-14 04:46:18,710 INFO L226 Difference]: Without dead ends: 205 [2020-10-14 04:46:18,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1178, Invalid=1272, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 04:46:18,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-14 04:46:18,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2020-10-14 04:46:18,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-14 04:46:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 203 transitions. [2020-10-14 04:46:18,717 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 203 transitions. Word has length 196 [2020-10-14 04:46:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:18,717 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 203 transitions. [2020-10-14 04:46:18,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-14 04:46:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 203 transitions. [2020-10-14 04:46:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-14 04:46:18,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:18,719 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:18,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-14 04:46:18,719 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:18,719 INFO L82 PathProgramCache]: Analyzing trace with hash 549987462, now seen corresponding path program 45 times [2020-10-14 04:46:18,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:18,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721283916] [2020-10-14 04:46:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:18,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:20,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 04:46:20,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:21,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:21,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:21,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:21,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:46:21,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:21,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:21,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:21,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721283916] [2020-10-14 04:46:21,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:21,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-14 04:46:21,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059250038] [2020-10-14 04:46:21,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-14 04:46:21,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:21,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-14 04:46:21,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1227, Invalid=1323, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 04:46:21,663 INFO L87 Difference]: Start difference. First operand 202 states and 203 transitions. Second operand 51 states. [2020-10-14 04:46:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:21,875 INFO L93 Difference]: Finished difference Result 216 states and 218 transitions. [2020-10-14 04:46:21,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-14 04:46:21,876 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 200 [2020-10-14 04:46:21,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:21,878 INFO L225 Difference]: With dead ends: 216 [2020-10-14 04:46:21,878 INFO L226 Difference]: Without dead ends: 209 [2020-10-14 04:46:21,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1227, Invalid=1323, Unknown=0, NotChecked=0, Total=2550 [2020-10-14 04:46:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-14 04:46:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 206. [2020-10-14 04:46:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-14 04:46:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 207 transitions. [2020-10-14 04:46:21,884 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 207 transitions. Word has length 200 [2020-10-14 04:46:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:21,885 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 207 transitions. [2020-10-14 04:46:21,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-14 04:46:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 207 transitions. [2020-10-14 04:46:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-14 04:46:21,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:21,886 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:21,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-14 04:46:21,887 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:21,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1454425613, now seen corresponding path program 46 times [2020-10-14 04:46:21,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:21,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230400129] [2020-10-14 04:46:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:21,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:23,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:23,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-14 04:46:23,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1655 [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 194 [2020-10-14 04:46:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:25,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:25,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:25,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:25,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:25,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230400129] [2020-10-14 04:46:25,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:25,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2020-10-14 04:46:25,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680596006] [2020-10-14 04:46:25,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-10-14 04:46:25,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:25,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-10-14 04:46:25,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1277, Invalid=1375, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 04:46:25,048 INFO L87 Difference]: Start difference. First operand 206 states and 207 transitions. Second operand 52 states. [2020-10-14 04:46:25,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:25,315 INFO L93 Difference]: Finished difference Result 220 states and 222 transitions. [2020-10-14 04:46:25,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-14 04:46:25,316 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 204 [2020-10-14 04:46:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:25,319 INFO L225 Difference]: With dead ends: 220 [2020-10-14 04:46:25,319 INFO L226 Difference]: Without dead ends: 213 [2020-10-14 04:46:25,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1277, Invalid=1375, Unknown=0, NotChecked=0, Total=2652 [2020-10-14 04:46:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-14 04:46:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 210. [2020-10-14 04:46:25,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-14 04:46:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 211 transitions. [2020-10-14 04:46:25,326 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 211 transitions. Word has length 204 [2020-10-14 04:46:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:25,327 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 211 transitions. [2020-10-14 04:46:25,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-10-14 04:46:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 211 transitions. [2020-10-14 04:46:25,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 04:46:25,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:25,328 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:25,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-14 04:46:25,329 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:25,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:25,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1020218388, now seen corresponding path program 47 times [2020-10-14 04:46:25,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:25,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117010994] [2020-10-14 04:46:25,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:25,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:27,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1688 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 04:46:27,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:28,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:28,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:28,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:28,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:28,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:28,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117010994] [2020-10-14 04:46:28,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:28,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-14 04:46:28,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042769115] [2020-10-14 04:46:28,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-14 04:46:28,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:28,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-14 04:46:28,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1328, Invalid=1428, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 04:46:28,551 INFO L87 Difference]: Start difference. First operand 210 states and 211 transitions. Second operand 53 states. [2020-10-14 04:46:28,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:28,804 INFO L93 Difference]: Finished difference Result 224 states and 226 transitions. [2020-10-14 04:46:28,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 04:46:28,805 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 208 [2020-10-14 04:46:28,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:28,807 INFO L225 Difference]: With dead ends: 224 [2020-10-14 04:46:28,807 INFO L226 Difference]: Without dead ends: 217 [2020-10-14 04:46:28,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1328, Invalid=1428, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 04:46:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-14 04:46:28,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2020-10-14 04:46:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-14 04:46:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 215 transitions. [2020-10-14 04:46:28,814 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 215 transitions. Word has length 208 [2020-10-14 04:46:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:28,815 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 215 transitions. [2020-10-14 04:46:28,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-14 04:46:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 215 transitions. [2020-10-14 04:46:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-14 04:46:28,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:28,816 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:28,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-14 04:46:28,816 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:28,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:28,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1151170203, now seen corresponding path program 48 times [2020-10-14 04:46:28,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:28,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180937028] [2020-10-14 04:46:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:30,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-14 04:46:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 04:46:30,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:32,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:32,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:32,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:32,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:32,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:32,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180937028] [2020-10-14 04:46:32,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:32,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2020-10-14 04:46:32,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741865185] [2020-10-14 04:46:32,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-10-14 04:46:32,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-10-14 04:46:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1380, Invalid=1482, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 04:46:32,169 INFO L87 Difference]: Start difference. First operand 214 states and 215 transitions. Second operand 54 states. [2020-10-14 04:46:32,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:32,438 INFO L93 Difference]: Finished difference Result 228 states and 230 transitions. [2020-10-14 04:46:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-14 04:46:32,439 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 212 [2020-10-14 04:46:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:32,441 INFO L225 Difference]: With dead ends: 228 [2020-10-14 04:46:32,441 INFO L226 Difference]: Without dead ends: 221 [2020-10-14 04:46:32,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1380, Invalid=1482, Unknown=0, NotChecked=0, Total=2862 [2020-10-14 04:46:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-14 04:46:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 218. [2020-10-14 04:46:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-14 04:46:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 219 transitions. [2020-10-14 04:46:32,448 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 219 transitions. Word has length 212 [2020-10-14 04:46:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:32,449 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 219 transitions. [2020-10-14 04:46:32,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-10-14 04:46:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 219 transitions. [2020-10-14 04:46:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-14 04:46:32,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:32,450 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:32,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-14 04:46:32,451 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:32,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:32,451 INFO L82 PathProgramCache]: Analyzing trace with hash 213190050, now seen corresponding path program 49 times [2020-10-14 04:46:32,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:32,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307736883] [2020-10-14 04:46:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:32,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:34,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:34,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 04:46:34,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1823 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 04:46:34,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:35,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:35,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:35,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:35,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307736883] [2020-10-14 04:46:35,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:35,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2020-10-14 04:46:35,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846364641] [2020-10-14 04:46:35,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-10-14 04:46:35,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-10-14 04:46:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1433, Invalid=1537, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 04:46:35,976 INFO L87 Difference]: Start difference. First operand 218 states and 219 transitions. Second operand 55 states. [2020-10-14 04:46:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:36,207 INFO L93 Difference]: Finished difference Result 232 states and 234 transitions. [2020-10-14 04:46:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-14 04:46:36,208 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 216 [2020-10-14 04:46:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:36,210 INFO L225 Difference]: With dead ends: 232 [2020-10-14 04:46:36,210 INFO L226 Difference]: Without dead ends: 225 [2020-10-14 04:46:36,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1433, Invalid=1537, Unknown=0, NotChecked=0, Total=2970 [2020-10-14 04:46:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-14 04:46:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2020-10-14 04:46:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-10-14 04:46:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 223 transitions. [2020-10-14 04:46:36,217 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 223 transitions. Word has length 216 [2020-10-14 04:46:36,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:36,217 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 223 transitions. [2020-10-14 04:46:36,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-10-14 04:46:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 223 transitions. [2020-10-14 04:46:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-14 04:46:36,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:36,219 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:36,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-14 04:46:36,219 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash -791693015, now seen corresponding path program 50 times [2020-10-14 04:46:36,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:36,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145264806] [2020-10-14 04:46:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:36,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:38,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2073 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 04:46:38,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:39,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:39,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:39,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:39,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:39,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:39,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:40,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:40,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145264806] [2020-10-14 04:46:40,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:40,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2020-10-14 04:46:40,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535244301] [2020-10-14 04:46:40,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-10-14 04:46:40,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:40,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-10-14 04:46:40,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1487, Invalid=1593, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 04:46:40,033 INFO L87 Difference]: Start difference. First operand 222 states and 223 transitions. Second operand 56 states. [2020-10-14 04:46:40,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:40,292 INFO L93 Difference]: Finished difference Result 236 states and 238 transitions. [2020-10-14 04:46:40,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-14 04:46:40,293 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 220 [2020-10-14 04:46:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:40,295 INFO L225 Difference]: With dead ends: 236 [2020-10-14 04:46:40,295 INFO L226 Difference]: Without dead ends: 229 [2020-10-14 04:46:40,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1487, Invalid=1593, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 04:46:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-10-14 04:46:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2020-10-14 04:46:40,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-14 04:46:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 227 transitions. [2020-10-14 04:46:40,301 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 227 transitions. Word has length 220 [2020-10-14 04:46:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:40,301 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 227 transitions. [2020-10-14 04:46:40,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-10-14 04:46:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 227 transitions. [2020-10-14 04:46:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 04:46:40,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:40,303 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:40,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-14 04:46:40,303 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:40,303 INFO L82 PathProgramCache]: Analyzing trace with hash -641248976, now seen corresponding path program 51 times [2020-10-14 04:46:40,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:40,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093076238] [2020-10-14 04:46:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:40,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:42,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1980 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 214 [2020-10-14 04:46:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:44,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:44,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:44,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:44,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:44,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093076238] [2020-10-14 04:46:44,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:44,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2020-10-14 04:46:44,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320292530] [2020-10-14 04:46:44,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-10-14 04:46:44,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:44,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-10-14 04:46:44,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1542, Invalid=1650, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 04:46:44,076 INFO L87 Difference]: Start difference. First operand 226 states and 227 transitions. Second operand 57 states. [2020-10-14 04:46:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:44,343 INFO L93 Difference]: Finished difference Result 240 states and 242 transitions. [2020-10-14 04:46:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-14 04:46:44,343 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 224 [2020-10-14 04:46:44,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:44,345 INFO L225 Difference]: With dead ends: 240 [2020-10-14 04:46:44,345 INFO L226 Difference]: Without dead ends: 233 [2020-10-14 04:46:44,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1542, Invalid=1650, Unknown=0, NotChecked=0, Total=3192 [2020-10-14 04:46:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-14 04:46:44,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2020-10-14 04:46:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-14 04:46:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 231 transitions. [2020-10-14 04:46:44,352 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 231 transitions. Word has length 224 [2020-10-14 04:46:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:44,353 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 231 transitions. [2020-10-14 04:46:44,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-10-14 04:46:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 231 transitions. [2020-10-14 04:46:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 04:46:44,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:44,354 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:44,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-14 04:46:44,355 INFO L427 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:44,355 INFO L82 PathProgramCache]: Analyzing trace with hash -308965961, now seen corresponding path program 52 times [2020-10-14 04:46:44,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:44,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673744480] [2020-10-14 04:46:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:44,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:46,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 56 [2020-10-14 04:46:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 04:46:46,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:48,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:48,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:48,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:48,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:48,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:48,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673744480] [2020-10-14 04:46:48,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:48,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2020-10-14 04:46:48,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985129010] [2020-10-14 04:46:48,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-10-14 04:46:48,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:48,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-10-14 04:46:48,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1598, Invalid=1708, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 04:46:48,307 INFO L87 Difference]: Start difference. First operand 230 states and 231 transitions. Second operand 58 states. [2020-10-14 04:46:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:48,569 INFO L93 Difference]: Finished difference Result 244 states and 246 transitions. [2020-10-14 04:46:48,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-14 04:46:48,570 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 228 [2020-10-14 04:46:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:48,572 INFO L225 Difference]: With dead ends: 244 [2020-10-14 04:46:48,572 INFO L226 Difference]: Without dead ends: 237 [2020-10-14 04:46:48,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1598, Invalid=1708, Unknown=0, NotChecked=0, Total=3306 [2020-10-14 04:46:48,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-14 04:46:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-14 04:46:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-14 04:46:48,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 235 transitions. [2020-10-14 04:46:48,579 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 235 transitions. Word has length 228 [2020-10-14 04:46:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:48,580 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 235 transitions. [2020-10-14 04:46:48,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-10-14 04:46:48,580 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 235 transitions. [2020-10-14 04:46:48,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-14 04:46:48,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:48,582 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:48,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-14 04:46:48,582 INFO L427 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:48,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1085002050, now seen corresponding path program 53 times [2020-10-14 04:46:48,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:48,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411038323] [2020-10-14 04:46:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:48,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:51,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2371 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:51,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 04:46:51,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:52,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:52,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:52,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411038323] [2020-10-14 04:46:52,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:52,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2020-10-14 04:46:52,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203908085] [2020-10-14 04:46:52,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-10-14 04:46:52,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-10-14 04:46:52,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1655, Invalid=1767, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 04:46:52,865 INFO L87 Difference]: Start difference. First operand 234 states and 235 transitions. Second operand 59 states. [2020-10-14 04:46:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:53,149 INFO L93 Difference]: Finished difference Result 248 states and 250 transitions. [2020-10-14 04:46:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-10-14 04:46:53,150 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 232 [2020-10-14 04:46:53,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:53,152 INFO L225 Difference]: With dead ends: 248 [2020-10-14 04:46:53,152 INFO L226 Difference]: Without dead ends: 241 [2020-10-14 04:46:53,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1655, Invalid=1767, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 04:46:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-14 04:46:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 238. [2020-10-14 04:46:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-14 04:46:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 239 transitions. [2020-10-14 04:46:53,158 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 239 transitions. Word has length 232 [2020-10-14 04:46:53,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:53,159 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 239 transitions. [2020-10-14 04:46:53,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-10-14 04:46:53,159 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 239 transitions. [2020-10-14 04:46:53,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-14 04:46:53,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:53,161 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:53,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-14 04:46:53,161 INFO L427 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:53,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1597830213, now seen corresponding path program 54 times [2020-10-14 04:46:53,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:53,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067419892] [2020-10-14 04:46:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:53,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:55,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:55,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-14 04:46:55,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:55,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2198 [2020-10-14 04:46:55,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:55,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-14 04:46:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:46:55,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 04:46:55,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 04:46:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:46:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:57,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:46:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:46:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:46:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:46:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:46:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:46:57,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:46:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:46:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:46:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:46:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:46:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:46:57,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067419892] [2020-10-14 04:46:57,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:46:57,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2020-10-14 04:46:57,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331277314] [2020-10-14 04:46:57,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-10-14 04:46:57,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:46:57,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-10-14 04:46:57,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1713, Invalid=1827, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 04:46:57,339 INFO L87 Difference]: Start difference. First operand 238 states and 239 transitions. Second operand 60 states. [2020-10-14 04:46:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:46:57,648 INFO L93 Difference]: Finished difference Result 252 states and 254 transitions. [2020-10-14 04:46:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-10-14 04:46:57,649 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 236 [2020-10-14 04:46:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:46:57,651 INFO L225 Difference]: With dead ends: 252 [2020-10-14 04:46:57,651 INFO L226 Difference]: Without dead ends: 245 [2020-10-14 04:46:57,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1713, Invalid=1827, Unknown=0, NotChecked=0, Total=3540 [2020-10-14 04:46:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-14 04:46:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2020-10-14 04:46:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-14 04:46:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 243 transitions. [2020-10-14 04:46:57,657 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 243 transitions. Word has length 236 [2020-10-14 04:46:57,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:46:57,658 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 243 transitions. [2020-10-14 04:46:57,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-10-14 04:46:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 243 transitions. [2020-10-14 04:46:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-14 04:46:57,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:46:57,659 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:46:57,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-10-14 04:46:57,660 INFO L427 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:46:57,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:46:57,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1431724468, now seen corresponding path program 55 times [2020-10-14 04:46:57,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:46:57,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550777337] [2020-10-14 04:46:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:46:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:46:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:00,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:00,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-14 04:47:00,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:00,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2341 [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 59 [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 230 [2020-10-14 04:47:00,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:02,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:02,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:02,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:02,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:02,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550777337] [2020-10-14 04:47:02,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:02,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2020-10-14 04:47:02,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376136643] [2020-10-14 04:47:02,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-10-14 04:47:02,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:02,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-10-14 04:47:02,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1772, Invalid=1888, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 04:47:02,060 INFO L87 Difference]: Start difference. First operand 242 states and 243 transitions. Second operand 61 states. [2020-10-14 04:47:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:02,333 INFO L93 Difference]: Finished difference Result 256 states and 258 transitions. [2020-10-14 04:47:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-14 04:47:02,334 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 240 [2020-10-14 04:47:02,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:02,336 INFO L225 Difference]: With dead ends: 256 [2020-10-14 04:47:02,337 INFO L226 Difference]: Without dead ends: 249 [2020-10-14 04:47:02,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1772, Invalid=1888, Unknown=0, NotChecked=0, Total=3660 [2020-10-14 04:47:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-14 04:47:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 246. [2020-10-14 04:47:02,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-14 04:47:02,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 247 transitions. [2020-10-14 04:47:02,343 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 247 transitions. Word has length 240 [2020-10-14 04:47:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:02,343 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 247 transitions. [2020-10-14 04:47:02,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-10-14 04:47:02,343 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 247 transitions. [2020-10-14 04:47:02,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-14 04:47:02,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:02,345 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:02,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-10-14 04:47:02,345 INFO L427 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:02,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1139544877, now seen corresponding path program 56 times [2020-10-14 04:47:02,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:02,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786861338] [2020-10-14 04:47:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:02,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2348 [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:04,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 60 [2020-10-14 04:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 04:47:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:06,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:06,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:06,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:06,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:06,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:06,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:06,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786861338] [2020-10-14 04:47:06,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:06,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2020-10-14 04:47:06,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149215990] [2020-10-14 04:47:06,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-10-14 04:47:06,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:06,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-10-14 04:47:06,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1832, Invalid=1950, Unknown=0, NotChecked=0, Total=3782 [2020-10-14 04:47:06,828 INFO L87 Difference]: Start difference. First operand 246 states and 247 transitions. Second operand 62 states. [2020-10-14 04:47:07,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:07,152 INFO L93 Difference]: Finished difference Result 260 states and 262 transitions. [2020-10-14 04:47:07,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-10-14 04:47:07,153 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 244 [2020-10-14 04:47:07,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:07,155 INFO L225 Difference]: With dead ends: 260 [2020-10-14 04:47:07,155 INFO L226 Difference]: Without dead ends: 253 [2020-10-14 04:47:07,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1832, Invalid=1950, Unknown=0, NotChecked=0, Total=3782 [2020-10-14 04:47:07,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-14 04:47:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2020-10-14 04:47:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-14 04:47:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 251 transitions. [2020-10-14 04:47:07,162 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 251 transitions. Word has length 244 [2020-10-14 04:47:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:07,162 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 251 transitions. [2020-10-14 04:47:07,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-10-14 04:47:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 251 transitions. [2020-10-14 04:47:07,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-14 04:47:07,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:07,164 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:07,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-10-14 04:47:07,164 INFO L427 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:07,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:07,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1528143834, now seen corresponding path program 57 times [2020-10-14 04:47:07,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:07,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424551385] [2020-10-14 04:47:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:07,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2506 [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:09,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 61 [2020-10-14 04:47:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 238 [2020-10-14 04:47:09,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:11,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:11,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:11,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:11,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424551385] [2020-10-14 04:47:11,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:11,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2020-10-14 04:47:11,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735050714] [2020-10-14 04:47:11,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-10-14 04:47:11,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:11,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-10-14 04:47:11,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1893, Invalid=2013, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 04:47:11,873 INFO L87 Difference]: Start difference. First operand 250 states and 251 transitions. Second operand 63 states. [2020-10-14 04:47:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:12,145 INFO L93 Difference]: Finished difference Result 264 states and 266 transitions. [2020-10-14 04:47:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-10-14 04:47:12,145 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 248 [2020-10-14 04:47:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:12,147 INFO L225 Difference]: With dead ends: 264 [2020-10-14 04:47:12,147 INFO L226 Difference]: Without dead ends: 257 [2020-10-14 04:47:12,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1893, Invalid=2013, Unknown=0, NotChecked=0, Total=3906 [2020-10-14 04:47:12,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-14 04:47:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 254. [2020-10-14 04:47:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-10-14 04:47:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 255 transitions. [2020-10-14 04:47:12,153 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 255 transitions. Word has length 248 [2020-10-14 04:47:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:12,154 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 255 transitions. [2020-10-14 04:47:12,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-10-14 04:47:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 255 transitions. [2020-10-14 04:47:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-14 04:47:12,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:12,155 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:12,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-10-14 04:47:12,156 INFO L427 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:12,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1818785633, now seen corresponding path program 58 times [2020-10-14 04:47:12,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:12,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377992726] [2020-10-14 04:47:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2491 [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:14,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-14 04:47:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 04:47:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:16,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:16,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:16,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:16,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:16,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:16,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:16,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:16,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:16,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:16,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377992726] [2020-10-14 04:47:16,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:16,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2020-10-14 04:47:16,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005449233] [2020-10-14 04:47:16,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-10-14 04:47:16,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-10-14 04:47:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1955, Invalid=2077, Unknown=0, NotChecked=0, Total=4032 [2020-10-14 04:47:16,951 INFO L87 Difference]: Start difference. First operand 254 states and 255 transitions. Second operand 64 states. [2020-10-14 04:47:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:17,295 INFO L93 Difference]: Finished difference Result 268 states and 270 transitions. [2020-10-14 04:47:17,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 04:47:17,295 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 252 [2020-10-14 04:47:17,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:17,297 INFO L225 Difference]: With dead ends: 268 [2020-10-14 04:47:17,297 INFO L226 Difference]: Without dead ends: 261 [2020-10-14 04:47:17,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1955, Invalid=2077, Unknown=0, NotChecked=0, Total=4032 [2020-10-14 04:47:17,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-14 04:47:17,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 258. [2020-10-14 04:47:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-14 04:47:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 259 transitions. [2020-10-14 04:47:17,303 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 259 transitions. Word has length 252 [2020-10-14 04:47:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:17,303 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 259 transitions. [2020-10-14 04:47:17,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-10-14 04:47:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 259 transitions. [2020-10-14 04:47:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-14 04:47:17,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:17,305 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:17,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-10-14 04:47:17,305 INFO L427 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:17,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1642476392, now seen corresponding path program 59 times [2020-10-14 04:47:17,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:17,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069441237] [2020-10-14 04:47:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:17,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2646 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 63 [2020-10-14 04:47:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:20,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 246 [2020-10-14 04:47:20,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:22,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:22,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:22,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:22,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:22,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:22,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:22,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:22,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069441237] [2020-10-14 04:47:22,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:22,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2020-10-14 04:47:22,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77504699] [2020-10-14 04:47:22,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-10-14 04:47:22,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:22,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-10-14 04:47:22,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2018, Invalid=2142, Unknown=0, NotChecked=0, Total=4160 [2020-10-14 04:47:22,296 INFO L87 Difference]: Start difference. First operand 258 states and 259 transitions. Second operand 65 states. [2020-10-14 04:47:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:22,625 INFO L93 Difference]: Finished difference Result 272 states and 274 transitions. [2020-10-14 04:47:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-14 04:47:22,625 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 256 [2020-10-14 04:47:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:22,628 INFO L225 Difference]: With dead ends: 272 [2020-10-14 04:47:22,628 INFO L226 Difference]: Without dead ends: 265 [2020-10-14 04:47:22,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2018, Invalid=2142, Unknown=0, NotChecked=0, Total=4160 [2020-10-14 04:47:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-10-14 04:47:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262. [2020-10-14 04:47:22,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-14 04:47:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 263 transitions. [2020-10-14 04:47:22,633 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 263 transitions. Word has length 256 [2020-10-14 04:47:22,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:22,633 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 263 transitions. [2020-10-14 04:47:22,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-10-14 04:47:22,633 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 263 transitions. [2020-10-14 04:47:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-14 04:47:22,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:22,635 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:22,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-10-14 04:47:22,635 INFO L427 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:22,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1433889809, now seen corresponding path program 60 times [2020-10-14 04:47:22,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:22,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357982957] [2020-10-14 04:47:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:22,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:25,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:25,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 04:47:25,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2764 [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 64 [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 04:47:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:27,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:27,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:27,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:27,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:27,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:27,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:47:27,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:27,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:27,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357982957] [2020-10-14 04:47:27,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:27,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2020-10-14 04:47:27,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155886791] [2020-10-14 04:47:27,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-10-14 04:47:27,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:27,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-10-14 04:47:27,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2082, Invalid=2208, Unknown=0, NotChecked=0, Total=4290 [2020-10-14 04:47:27,791 INFO L87 Difference]: Start difference. First operand 262 states and 263 transitions. Second operand 66 states. [2020-10-14 04:47:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:28,096 INFO L93 Difference]: Finished difference Result 276 states and 278 transitions. [2020-10-14 04:47:28,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-10-14 04:47:28,096 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 260 [2020-10-14 04:47:28,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:28,098 INFO L225 Difference]: With dead ends: 276 [2020-10-14 04:47:28,098 INFO L226 Difference]: Without dead ends: 269 [2020-10-14 04:47:28,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2082, Invalid=2208, Unknown=0, NotChecked=0, Total=4290 [2020-10-14 04:47:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-14 04:47:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 266. [2020-10-14 04:47:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-14 04:47:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 267 transitions. [2020-10-14 04:47:28,104 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 267 transitions. Word has length 260 [2020-10-14 04:47:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:28,105 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 267 transitions. [2020-10-14 04:47:28,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-10-14 04:47:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 267 transitions. [2020-10-14 04:47:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-14 04:47:28,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:28,106 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:28,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-10-14 04:47:28,106 INFO L427 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash 577329398, now seen corresponding path program 61 times [2020-10-14 04:47:28,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:28,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372456495] [2020-10-14 04:47:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:28,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2875 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-14 04:47:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:31,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 254 [2020-10-14 04:47:31,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:33,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:33,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:33,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:33,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:33,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:33,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:33,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:33,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:33,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:33,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:33,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372456495] [2020-10-14 04:47:33,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:33,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2020-10-14 04:47:33,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766408253] [2020-10-14 04:47:33,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-10-14 04:47:33,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:33,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-10-14 04:47:33,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2147, Invalid=2275, Unknown=0, NotChecked=0, Total=4422 [2020-10-14 04:47:33,470 INFO L87 Difference]: Start difference. First operand 266 states and 267 transitions. Second operand 67 states. [2020-10-14 04:47:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:33,855 INFO L93 Difference]: Finished difference Result 280 states and 282 transitions. [2020-10-14 04:47:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-10-14 04:47:33,856 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 264 [2020-10-14 04:47:33,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:33,858 INFO L225 Difference]: With dead ends: 280 [2020-10-14 04:47:33,858 INFO L226 Difference]: Without dead ends: 273 [2020-10-14 04:47:33,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2147, Invalid=2275, Unknown=0, NotChecked=0, Total=4422 [2020-10-14 04:47:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-10-14 04:47:33,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 270. [2020-10-14 04:47:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-14 04:47:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 271 transitions. [2020-10-14 04:47:33,866 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 271 transitions. Word has length 264 [2020-10-14 04:47:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:33,867 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 271 transitions. [2020-10-14 04:47:33,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-10-14 04:47:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 271 transitions. [2020-10-14 04:47:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-14 04:47:33,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:33,869 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:33,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-10-14 04:47:33,869 INFO L427 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:33,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:33,869 INFO L82 PathProgramCache]: Analyzing trace with hash -2101198211, now seen corresponding path program 62 times [2020-10-14 04:47:33,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:33,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132382699] [2020-10-14 04:47:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:33,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:36,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:36,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 04:47:36,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:36,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3001 [2020-10-14 04:47:36,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:36,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-14 04:47:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:36,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 258 [2020-10-14 04:47:36,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:39,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:39,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:39,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:39,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:39,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132382699] [2020-10-14 04:47:39,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:39,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2020-10-14 04:47:39,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093879676] [2020-10-14 04:47:39,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-10-14 04:47:39,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:39,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-10-14 04:47:39,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2213, Invalid=2343, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 04:47:39,446 INFO L87 Difference]: Start difference. First operand 270 states and 271 transitions. Second operand 68 states. [2020-10-14 04:47:39,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:39,817 INFO L93 Difference]: Finished difference Result 284 states and 286 transitions. [2020-10-14 04:47:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-14 04:47:39,818 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 268 [2020-10-14 04:47:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:39,820 INFO L225 Difference]: With dead ends: 284 [2020-10-14 04:47:39,820 INFO L226 Difference]: Without dead ends: 277 [2020-10-14 04:47:39,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2213, Invalid=2343, Unknown=0, NotChecked=0, Total=4556 [2020-10-14 04:47:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-14 04:47:39,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 274. [2020-10-14 04:47:39,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-14 04:47:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 275 transitions. [2020-10-14 04:47:39,826 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 275 transitions. Word has length 268 [2020-10-14 04:47:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:39,827 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 275 transitions. [2020-10-14 04:47:39,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-10-14 04:47:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 275 transitions. [2020-10-14 04:47:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-14 04:47:39,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:39,829 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:39,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-10-14 04:47:39,829 INFO L427 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash -772992892, now seen corresponding path program 63 times [2020-10-14 04:47:39,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:39,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260511814] [2020-10-14 04:47:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:39,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:42,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-14 04:47:42,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3020 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 67 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 262 [2020-10-14 04:47:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:45,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:45,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:45,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:45,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:45,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260511814] [2020-10-14 04:47:45,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:45,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2020-10-14 04:47:45,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393819519] [2020-10-14 04:47:45,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-10-14 04:47:45,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-10-14 04:47:45,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2280, Invalid=2412, Unknown=0, NotChecked=0, Total=4692 [2020-10-14 04:47:45,468 INFO L87 Difference]: Start difference. First operand 274 states and 275 transitions. Second operand 69 states. [2020-10-14 04:47:45,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:45,851 INFO L93 Difference]: Finished difference Result 288 states and 290 transitions. [2020-10-14 04:47:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-14 04:47:45,851 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 272 [2020-10-14 04:47:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:45,853 INFO L225 Difference]: With dead ends: 288 [2020-10-14 04:47:45,853 INFO L226 Difference]: Without dead ends: 281 [2020-10-14 04:47:45,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2280, Invalid=2412, Unknown=0, NotChecked=0, Total=4692 [2020-10-14 04:47:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-14 04:47:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2020-10-14 04:47:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-14 04:47:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 279 transitions. [2020-10-14 04:47:45,859 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 279 transitions. Word has length 272 [2020-10-14 04:47:45,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:45,859 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 279 transitions. [2020-10-14 04:47:45,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-10-14 04:47:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 279 transitions. [2020-10-14 04:47:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-14 04:47:45,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:45,861 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:45,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-14 04:47:45,861 INFO L427 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash -748453109, now seen corresponding path program 64 times [2020-10-14 04:47:45,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:45,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343955154] [2020-10-14 04:47:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:45,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3210 [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 68 [2020-10-14 04:47:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-14 04:47:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:51,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:51,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:51,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:51,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:51,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343955154] [2020-10-14 04:47:51,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:51,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2020-10-14 04:47:51,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400362000] [2020-10-14 04:47:51,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-10-14 04:47:51,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:51,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-10-14 04:47:51,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2348, Invalid=2482, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 04:47:51,799 INFO L87 Difference]: Start difference. First operand 278 states and 279 transitions. Second operand 70 states. [2020-10-14 04:47:52,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:52,109 INFO L93 Difference]: Finished difference Result 292 states and 294 transitions. [2020-10-14 04:47:52,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-14 04:47:52,110 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 276 [2020-10-14 04:47:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:52,112 INFO L225 Difference]: With dead ends: 292 [2020-10-14 04:47:52,112 INFO L226 Difference]: Without dead ends: 285 [2020-10-14 04:47:52,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2348, Invalid=2482, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 04:47:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-14 04:47:52,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 282. [2020-10-14 04:47:52,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-14 04:47:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 283 transitions. [2020-10-14 04:47:52,119 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 283 transitions. Word has length 276 [2020-10-14 04:47:52,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:52,119 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 283 transitions. [2020-10-14 04:47:52,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-10-14 04:47:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 283 transitions. [2020-10-14 04:47:52,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-14 04:47:52,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:52,121 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:52,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-14 04:47:52,122 INFO L427 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:52,122 INFO L82 PathProgramCache]: Analyzing trace with hash 2009029138, now seen corresponding path program 65 times [2020-10-14 04:47:52,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:52,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363263139] [2020-10-14 04:47:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:52,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:55,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:55,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 286 [2020-10-14 04:47:55,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3218 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 69 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-14 04:47:55,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:58,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:47:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:58,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:47:58,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:47:58,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:47:58,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:47:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:47:58,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363263139] [2020-10-14 04:47:58,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:47:58,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2020-10-14 04:47:58,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103873865] [2020-10-14 04:47:58,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-10-14 04:47:58,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:47:58,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-10-14 04:47:58,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2417, Invalid=2553, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 04:47:58,067 INFO L87 Difference]: Start difference. First operand 282 states and 283 transitions. Second operand 71 states. [2020-10-14 04:47:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:47:58,468 INFO L93 Difference]: Finished difference Result 296 states and 298 transitions. [2020-10-14 04:47:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-10-14 04:47:58,469 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 280 [2020-10-14 04:47:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:47:58,471 INFO L225 Difference]: With dead ends: 296 [2020-10-14 04:47:58,471 INFO L226 Difference]: Without dead ends: 289 [2020-10-14 04:47:58,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2417, Invalid=2553, Unknown=0, NotChecked=0, Total=4970 [2020-10-14 04:47:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-14 04:47:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2020-10-14 04:47:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-14 04:47:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 287 transitions. [2020-10-14 04:47:58,478 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 287 transitions. Word has length 280 [2020-10-14 04:47:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:47:58,478 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 287 transitions. [2020-10-14 04:47:58,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-10-14 04:47:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 287 transitions. [2020-10-14 04:47:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-14 04:47:58,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:47:58,480 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:47:58,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-14 04:47:58,480 INFO L427 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:47:58,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:47:58,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1287280025, now seen corresponding path program 66 times [2020-10-14 04:47:58,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:47:58,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163015879] [2020-10-14 04:47:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:47:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:47:58,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:01,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3420 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 04:48:01,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:04,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:04,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:04,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:04,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:04,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:04,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:04,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163015879] [2020-10-14 04:48:04,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:04,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2020-10-14 04:48:04,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82193196] [2020-10-14 04:48:04,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-10-14 04:48:04,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:04,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-10-14 04:48:04,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2487, Invalid=2625, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 04:48:04,786 INFO L87 Difference]: Start difference. First operand 286 states and 287 transitions. Second operand 72 states. [2020-10-14 04:48:05,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:05,178 INFO L93 Difference]: Finished difference Result 300 states and 302 transitions. [2020-10-14 04:48:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-14 04:48:05,179 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 284 [2020-10-14 04:48:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:05,181 INFO L225 Difference]: With dead ends: 300 [2020-10-14 04:48:05,181 INFO L226 Difference]: Without dead ends: 293 [2020-10-14 04:48:05,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2487, Invalid=2625, Unknown=0, NotChecked=0, Total=5112 [2020-10-14 04:48:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-14 04:48:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2020-10-14 04:48:05,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-14 04:48:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 291 transitions. [2020-10-14 04:48:05,188 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 291 transitions. Word has length 284 [2020-10-14 04:48:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:05,188 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 291 transitions. [2020-10-14 04:48:05,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-10-14 04:48:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 291 transitions. [2020-10-14 04:48:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-14 04:48:05,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:05,190 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:05,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-14 04:48:05,190 INFO L427 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:05,190 INFO L82 PathProgramCache]: Analyzing trace with hash -315738720, now seen corresponding path program 67 times [2020-10-14 04:48:05,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:05,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531967981] [2020-10-14 04:48:05,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:05,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3458 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 71 [2020-10-14 04:48:08,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:08,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-14 04:48:08,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:11,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:11,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:11,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:11,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:11,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:11,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:11,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:11,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:11,560 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:11,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531967981] [2020-10-14 04:48:11,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:11,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2020-10-14 04:48:11,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686358119] [2020-10-14 04:48:11,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-10-14 04:48:11,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:11,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-10-14 04:48:11,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2558, Invalid=2698, Unknown=0, NotChecked=0, Total=5256 [2020-10-14 04:48:11,562 INFO L87 Difference]: Start difference. First operand 290 states and 291 transitions. Second operand 73 states. [2020-10-14 04:48:11,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:11,954 INFO L93 Difference]: Finished difference Result 304 states and 306 transitions. [2020-10-14 04:48:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-10-14 04:48:11,955 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 288 [2020-10-14 04:48:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:11,958 INFO L225 Difference]: With dead ends: 304 [2020-10-14 04:48:11,958 INFO L226 Difference]: Without dead ends: 297 [2020-10-14 04:48:11,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2558, Invalid=2698, Unknown=0, NotChecked=0, Total=5256 [2020-10-14 04:48:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-10-14 04:48:11,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 294. [2020-10-14 04:48:11,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-14 04:48:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 295 transitions. [2020-10-14 04:48:11,962 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 295 transitions. Word has length 288 [2020-10-14 04:48:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:11,963 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 295 transitions. [2020-10-14 04:48:11,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-10-14 04:48:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 295 transitions. [2020-10-14 04:48:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-14 04:48:11,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:11,964 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:11,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-14 04:48:11,964 INFO L427 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1897183783, now seen corresponding path program 68 times [2020-10-14 04:48:11,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:11,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065921462] [2020-10-14 04:48:11,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:15,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:15,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 04:48:15,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3618 [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 72 [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 282 [2020-10-14 04:48:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:18,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:18,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:18,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:18,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065921462] [2020-10-14 04:48:18,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:18,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2020-10-14 04:48:18,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405134280] [2020-10-14 04:48:18,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-10-14 04:48:18,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:18,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-10-14 04:48:18,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2630, Invalid=2772, Unknown=0, NotChecked=0, Total=5402 [2020-10-14 04:48:18,568 INFO L87 Difference]: Start difference. First operand 294 states and 295 transitions. Second operand 74 states. [2020-10-14 04:48:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:18,950 INFO L93 Difference]: Finished difference Result 308 states and 310 transitions. [2020-10-14 04:48:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-14 04:48:18,951 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 292 [2020-10-14 04:48:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:18,953 INFO L225 Difference]: With dead ends: 308 [2020-10-14 04:48:18,953 INFO L226 Difference]: Without dead ends: 301 [2020-10-14 04:48:18,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2630, Invalid=2772, Unknown=0, NotChecked=0, Total=5402 [2020-10-14 04:48:18,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-14 04:48:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 298. [2020-10-14 04:48:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-14 04:48:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 299 transitions. [2020-10-14 04:48:18,960 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 299 transitions. Word has length 292 [2020-10-14 04:48:18,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:18,960 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 299 transitions. [2020-10-14 04:48:18,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-10-14 04:48:18,960 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 299 transitions. [2020-10-14 04:48:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 04:48:18,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:18,962 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:18,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-14 04:48:18,963 INFO L427 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:18,963 INFO L82 PathProgramCache]: Analyzing trace with hash -578313426, now seen corresponding path program 69 times [2020-10-14 04:48:18,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:18,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682249740] [2020-10-14 04:48:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:19,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3704 [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:22,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 73 [2020-10-14 04:48:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 286 [2020-10-14 04:48:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:25,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:25,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:25,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:25,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:25,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:25,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:25,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682249740] [2020-10-14 04:48:25,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:25,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2020-10-14 04:48:25,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495256525] [2020-10-14 04:48:25,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-10-14 04:48:25,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:25,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-10-14 04:48:25,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2703, Invalid=2847, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 04:48:25,850 INFO L87 Difference]: Start difference. First operand 298 states and 299 transitions. Second operand 75 states. [2020-10-14 04:48:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:26,290 INFO L93 Difference]: Finished difference Result 312 states and 314 transitions. [2020-10-14 04:48:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-10-14 04:48:26,291 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 296 [2020-10-14 04:48:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:26,293 INFO L225 Difference]: With dead ends: 312 [2020-10-14 04:48:26,293 INFO L226 Difference]: Without dead ends: 305 [2020-10-14 04:48:26,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2703, Invalid=2847, Unknown=0, NotChecked=0, Total=5550 [2020-10-14 04:48:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-10-14 04:48:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 302. [2020-10-14 04:48:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-14 04:48:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 303 transitions. [2020-10-14 04:48:26,299 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 303 transitions. Word has length 296 [2020-10-14 04:48:26,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:26,299 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 303 transitions. [2020-10-14 04:48:26,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-10-14 04:48:26,300 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 303 transitions. [2020-10-14 04:48:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-10-14 04:48:26,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:26,301 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:26,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-14 04:48:26,302 INFO L427 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:26,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1799311179, now seen corresponding path program 70 times [2020-10-14 04:48:26,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:26,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755260267] [2020-10-14 04:48:26,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:26,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:30,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:30,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-14 04:48:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3820 [2020-10-14 04:48:30,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:30,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 74 [2020-10-14 04:48:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 290 [2020-10-14 04:48:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:33,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:33,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:33,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:33,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:33,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755260267] [2020-10-14 04:48:33,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:33,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2020-10-14 04:48:33,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960076670] [2020-10-14 04:48:33,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-10-14 04:48:33,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:33,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-10-14 04:48:33,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2777, Invalid=2923, Unknown=0, NotChecked=0, Total=5700 [2020-10-14 04:48:33,343 INFO L87 Difference]: Start difference. First operand 302 states and 303 transitions. Second operand 76 states. [2020-10-14 04:48:33,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:33,787 INFO L93 Difference]: Finished difference Result 316 states and 318 transitions. [2020-10-14 04:48:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-10-14 04:48:33,788 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 300 [2020-10-14 04:48:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:33,790 INFO L225 Difference]: With dead ends: 316 [2020-10-14 04:48:33,790 INFO L226 Difference]: Without dead ends: 309 [2020-10-14 04:48:33,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2777, Invalid=2923, Unknown=0, NotChecked=0, Total=5700 [2020-10-14 04:48:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-14 04:48:33,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 306. [2020-10-14 04:48:33,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-10-14 04:48:33,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 307 transitions. [2020-10-14 04:48:33,796 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 307 transitions. Word has length 300 [2020-10-14 04:48:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:33,796 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 307 transitions. [2020-10-14 04:48:33,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-10-14 04:48:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 307 transitions. [2020-10-14 04:48:33,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-14 04:48:33,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:33,797 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:33,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-14 04:48:33,797 INFO L427 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:33,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:33,798 INFO L82 PathProgramCache]: Analyzing trace with hash -971398468, now seen corresponding path program 71 times [2020-10-14 04:48:33,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:33,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038016348] [2020-10-14 04:48:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:33,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:37,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:37,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 04:48:37,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4035 [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 75 [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 294 [2020-10-14 04:48:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:41,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:41,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:41,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:41,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:41,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:41,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:41,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038016348] [2020-10-14 04:48:41,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:41,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2020-10-14 04:48:41,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823526790] [2020-10-14 04:48:41,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-10-14 04:48:41,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:41,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-10-14 04:48:41,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2852, Invalid=3000, Unknown=0, NotChecked=0, Total=5852 [2020-10-14 04:48:41,200 INFO L87 Difference]: Start difference. First operand 306 states and 307 transitions. Second operand 77 states. [2020-10-14 04:48:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:41,603 INFO L93 Difference]: Finished difference Result 320 states and 322 transitions. [2020-10-14 04:48:41,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-14 04:48:41,603 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 304 [2020-10-14 04:48:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:41,606 INFO L225 Difference]: With dead ends: 320 [2020-10-14 04:48:41,606 INFO L226 Difference]: Without dead ends: 313 [2020-10-14 04:48:41,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2852, Invalid=3000, Unknown=0, NotChecked=0, Total=5852 [2020-10-14 04:48:41,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-14 04:48:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 310. [2020-10-14 04:48:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-10-14 04:48:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 311 transitions. [2020-10-14 04:48:41,612 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 311 transitions. Word has length 304 [2020-10-14 04:48:41,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:41,613 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 311 transitions. [2020-10-14 04:48:41,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-10-14 04:48:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 311 transitions. [2020-10-14 04:48:41,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-14 04:48:41,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:41,615 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:41,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-14 04:48:41,615 INFO L427 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:41,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:41,615 INFO L82 PathProgramCache]: Analyzing trace with hash -569624253, now seen corresponding path program 72 times [2020-10-14 04:48:41,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:41,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964454694] [2020-10-14 04:48:41,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:41,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:45,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:45,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 04:48:45,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4012 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 76 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-14 04:48:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:49,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:49,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:49,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:49,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:49,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:49,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:49,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:49,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:49,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:49,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964454694] [2020-10-14 04:48:49,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:49,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2020-10-14 04:48:49,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145980433] [2020-10-14 04:48:49,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-10-14 04:48:49,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:49,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-10-14 04:48:49,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2928, Invalid=3078, Unknown=0, NotChecked=0, Total=6006 [2020-10-14 04:48:49,091 INFO L87 Difference]: Start difference. First operand 310 states and 311 transitions. Second operand 78 states. [2020-10-14 04:48:49,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:49,522 INFO L93 Difference]: Finished difference Result 324 states and 326 transitions. [2020-10-14 04:48:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-10-14 04:48:49,523 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 308 [2020-10-14 04:48:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:49,525 INFO L225 Difference]: With dead ends: 324 [2020-10-14 04:48:49,526 INFO L226 Difference]: Without dead ends: 317 [2020-10-14 04:48:49,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2928, Invalid=3078, Unknown=0, NotChecked=0, Total=6006 [2020-10-14 04:48:49,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-14 04:48:49,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 314. [2020-10-14 04:48:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-10-14 04:48:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 315 transitions. [2020-10-14 04:48:49,532 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 315 transitions. Word has length 308 [2020-10-14 04:48:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:49,532 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 315 transitions. [2020-10-14 04:48:49,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-10-14 04:48:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 315 transitions. [2020-10-14 04:48:49,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-14 04:48:49,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:49,534 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:49,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-14 04:48:49,535 INFO L427 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:49,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:49,535 INFO L82 PathProgramCache]: Analyzing trace with hash -164481974, now seen corresponding path program 73 times [2020-10-14 04:48:49,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:49,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741294792] [2020-10-14 04:48:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:53,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 318 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4271 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 77 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:48:53,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 302 [2020-10-14 04:48:53,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:57,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:48:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:57,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:48:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:48:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:48:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:48:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:48:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:48:57,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741294792] [2020-10-14 04:48:57,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:48:57,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2020-10-14 04:48:57,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318283183] [2020-10-14 04:48:57,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-10-14 04:48:57,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:48:57,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-10-14 04:48:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3005, Invalid=3157, Unknown=0, NotChecked=0, Total=6162 [2020-10-14 04:48:57,307 INFO L87 Difference]: Start difference. First operand 314 states and 315 transitions. Second operand 79 states. [2020-10-14 04:48:57,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:48:57,774 INFO L93 Difference]: Finished difference Result 328 states and 330 transitions. [2020-10-14 04:48:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-10-14 04:48:57,775 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 312 [2020-10-14 04:48:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:48:57,777 INFO L225 Difference]: With dead ends: 328 [2020-10-14 04:48:57,777 INFO L226 Difference]: Without dead ends: 321 [2020-10-14 04:48:57,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3005, Invalid=3157, Unknown=0, NotChecked=0, Total=6162 [2020-10-14 04:48:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-14 04:48:57,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 318. [2020-10-14 04:48:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-14 04:48:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 319 transitions. [2020-10-14 04:48:57,782 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 319 transitions. Word has length 312 [2020-10-14 04:48:57,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:48:57,782 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 319 transitions. [2020-10-14 04:48:57,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-10-14 04:48:57,782 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 319 transitions. [2020-10-14 04:48:57,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 04:48:57,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:48:57,783 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:48:57,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-14 04:48:57,784 INFO L427 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:48:57,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:48:57,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1162171345, now seen corresponding path program 74 times [2020-10-14 04:48:57,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:48:57,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946067363] [2020-10-14 04:48:57,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:48:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:48:57,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:02,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:02,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-14 04:49:02,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4263 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 78 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-14 04:49:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:05,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 04:49:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:05,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:05,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 04:49:05,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 04:49:05,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 04:49:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 04:49:05,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946067363] [2020-10-14 04:49:05,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 04:49:05,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2020-10-14 04:49:05,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017998985] [2020-10-14 04:49:05,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-10-14 04:49:05,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 04:49:05,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-10-14 04:49:05,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3083, Invalid=3237, Unknown=0, NotChecked=0, Total=6320 [2020-10-14 04:49:05,660 INFO L87 Difference]: Start difference. First operand 318 states and 319 transitions. Second operand 80 states. [2020-10-14 04:49:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 04:49:06,151 INFO L93 Difference]: Finished difference Result 332 states and 334 transitions. [2020-10-14 04:49:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-10-14 04:49:06,152 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 316 [2020-10-14 04:49:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 04:49:06,154 INFO L225 Difference]: With dead ends: 332 [2020-10-14 04:49:06,154 INFO L226 Difference]: Without dead ends: 325 [2020-10-14 04:49:06,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3083, Invalid=3237, Unknown=0, NotChecked=0, Total=6320 [2020-10-14 04:49:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-14 04:49:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 322. [2020-10-14 04:49:06,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-14 04:49:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 323 transitions. [2020-10-14 04:49:06,160 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 323 transitions. Word has length 316 [2020-10-14 04:49:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 04:49:06,161 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 323 transitions. [2020-10-14 04:49:06,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-10-14 04:49:06,161 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 323 transitions. [2020-10-14 04:49:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-14 04:49:06,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 04:49:06,163 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 04:49:06,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2020-10-14 04:49:06,163 INFO L427 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 04:49:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 04:49:06,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1893771304, now seen corresponding path program 75 times [2020-10-14 04:49:06,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 04:49:06,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528580366] [2020-10-14 04:49:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 04:49:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 04:49:06,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 04:49:10,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4458 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 79 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 04:49:10,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0