/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=NARROWEST --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/eca-rers2012/Problem11_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:11:23,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:11:23,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:11:23,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:11:23,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:11:23,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:11:23,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:11:23,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:11:23,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:11:23,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:11:23,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:11:23,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:11:23,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:11:23,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:11:23,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:11:23,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:11:23,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:11:23,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:11:23,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:11:23,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:11:23,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:11:23,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:11:23,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:11:23,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:11:23,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:11:23,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:11:23,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:11:23,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:11:23,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:11:23,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:11:23,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:11:23,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:11:23,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:11:23,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:11:23,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:11:23,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:11:23,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:11:23,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:11:23,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:11:23,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:11:23,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:11:23,707 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 [2020-10-13 08:11:23,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:11:23,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:11:23,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:11:23,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:11:23,759 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:11:23,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:11:23,760 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:11:23,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:11:23,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:11:23,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:11:23,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:11:23,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:11:23,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:11:23,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:11:23,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:11:23,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:11:23,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:11:23,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:11:23,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:11:23,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:11:23,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:11:23,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:11:23,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:11:23,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:11:23,766 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:11:24,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:11:24,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:11:24,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:11:24,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:11:24,120 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:11:24,120 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label48.c [2020-10-13 08:11:24,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee3281da5/0c762437320b417bba6f6907e5941917/FLAGfa4d99a4a [2020-10-13 08:11:24,813 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:11:24,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label48.c [2020-10-13 08:11:24,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee3281da5/0c762437320b417bba6f6907e5941917/FLAGfa4d99a4a [2020-10-13 08:11:25,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee3281da5/0c762437320b417bba6f6907e5941917 [2020-10-13 08:11:25,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:11:25,072 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:11:25,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:11:25,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:11:25,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:11:25,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:11:25" (1/1) ... [2020-10-13 08:11:25,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42db8c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:25, skipping insertion in model container [2020-10-13 08:11:25,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:11:25" (1/1) ... [2020-10-13 08:11:25,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:11:25,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:11:25,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:11:25,841 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:11:26,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:11:26,072 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:11:26,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26 WrapperNode [2020-10-13 08:11:26,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:11:26,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:11:26,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:11:26,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:11:26,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (1/1) ... [2020-10-13 08:11:26,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:11:26,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:11:26,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:11:26,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:11:26,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (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 [2020-10-13 08:11:26,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:11:26,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:11:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:11:26,323 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:11:26,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:11:26,324 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:11:26,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:11:28,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:11:28,093 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:11:28,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:11:28 BoogieIcfgContainer [2020-10-13 08:11:28,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:11:28,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:11:28,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:11:28,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:11:28,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:11:25" (1/3) ... [2020-10-13 08:11:28,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d785381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:11:28, skipping insertion in model container [2020-10-13 08:11:28,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:11:26" (2/3) ... [2020-10-13 08:11:28,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d785381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:11:28, skipping insertion in model container [2020-10-13 08:11:28,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:11:28" (3/3) ... [2020-10-13 08:11:28,111 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label48.c [2020-10-13 08:11:28,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:11:28,132 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:11:28,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:11:28,180 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:11:28,180 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:11:28,180 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:11:28,180 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:11:28,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:11:28,181 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:11:28,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:11:28,181 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:11:28,209 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-13 08:11:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 08:11:28,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:28,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:28,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:28,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:28,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1357011669, now seen corresponding path program 1 times [2020-10-13 08:11:28,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:28,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540887400] [2020-10-13 08:11:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 08:11:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-10-13 08:11:28,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:11:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:11:28,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 08:11:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:11:29,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:29,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:29,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:29,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 08:11:29,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:29,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:11:29,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:29,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540887400] [2020-10-13 08:11:29,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:11:29,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:11:29,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662557111] [2020-10-13 08:11:29,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:11:29,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:29,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:11:29,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:11:29,078 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-13 08:11:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:31,278 INFO L93 Difference]: Finished difference Result 799 states and 1401 transitions. [2020-10-13 08:11:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:31,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-10-13 08:11:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:31,300 INFO L225 Difference]: With dead ends: 799 [2020-10-13 08:11:31,300 INFO L226 Difference]: Without dead ends: 443 [2020-10-13 08:11:31,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-13 08:11:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 429. [2020-10-13 08:11:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-10-13 08:11:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 645 transitions. [2020-10-13 08:11:31,392 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 645 transitions. Word has length 56 [2020-10-13 08:11:31,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:31,393 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 645 transitions. [2020-10-13 08:11:31,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:11:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 645 transitions. [2020-10-13 08:11:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 08:11:31,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:31,400 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:31,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:11:31,401 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:31,401 INFO L82 PathProgramCache]: Analyzing trace with hash -985448178, now seen corresponding path program 1 times [2020-10-13 08:11:31,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:31,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637409161] [2020-10-13 08:11:31,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:31,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:32,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:32,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 08:11:32,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:11:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1337 [2020-10-13 08:11:32,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 08:11:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 08:11:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:32,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:32,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:32,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:32,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:11:32,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:32,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:32,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:32,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:32,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:11:32,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:11:32,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:11:32,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:33,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637409161] [2020-10-13 08:11:33,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:33,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:33,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965915301] [2020-10-13 08:11:33,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:33,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:33,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:33,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:33,050 INFO L87 Difference]: Start difference. First operand 429 states and 645 transitions. Second operand 5 states. [2020-10-13 08:11:35,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:35,165 INFO L93 Difference]: Finished difference Result 1240 states and 1897 transitions. [2020-10-13 08:11:35,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:35,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-10-13 08:11:35,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:35,175 INFO L225 Difference]: With dead ends: 1240 [2020-10-13 08:11:35,176 INFO L226 Difference]: Without dead ends: 817 [2020-10-13 08:11:35,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-13 08:11:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 811. [2020-10-13 08:11:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-10-13 08:11:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1114 transitions. [2020-10-13 08:11:35,234 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1114 transitions. Word has length 126 [2020-10-13 08:11:35,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:35,235 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 1114 transitions. [2020-10-13 08:11:35,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1114 transitions. [2020-10-13 08:11:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 08:11:35,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:35,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:35,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:11:35,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:35,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:35,242 INFO L82 PathProgramCache]: Analyzing trace with hash 876528326, now seen corresponding path program 1 times [2020-10-13 08:11:35,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:35,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709208771] [2020-10-13 08:11:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:35,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:35,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:35,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:36,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:36,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 08:11:36,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:11:36,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1546 [2020-10-13 08:11:36,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:36,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:11:36,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 08:11:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:36,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:36,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:36,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:36,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:36,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:11:36,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:36,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:36,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:36,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:36,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:37,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:37,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:37,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:11:37,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:37,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 08:11:37,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:37,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:11:37,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:37,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709208771] [2020-10-13 08:11:37,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:37,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:37,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114721257] [2020-10-13 08:11:37,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:37,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:37,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:37,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:37,197 INFO L87 Difference]: Start difference. First operand 811 states and 1114 transitions. Second operand 5 states. [2020-10-13 08:11:38,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:38,760 INFO L93 Difference]: Finished difference Result 1631 states and 2251 transitions. [2020-10-13 08:11:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:38,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-10-13 08:11:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:38,767 INFO L225 Difference]: With dead ends: 1631 [2020-10-13 08:11:38,767 INFO L226 Difference]: Without dead ends: 817 [2020-10-13 08:11:38,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-13 08:11:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 811. [2020-10-13 08:11:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-10-13 08:11:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1110 transitions. [2020-10-13 08:11:38,801 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1110 transitions. Word has length 130 [2020-10-13 08:11:38,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:38,802 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 1110 transitions. [2020-10-13 08:11:38,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1110 transitions. [2020-10-13 08:11:38,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 08:11:38,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:38,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:38,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:11:38,816 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:38,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:38,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1287366310, now seen corresponding path program 1 times [2020-10-13 08:11:38,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:38,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2080752445] [2020-10-13 08:11:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:38,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:38,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:40,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:40,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 08:11:40,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:11:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1495 [2020-10-13 08:11:40,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 08:11:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 08:11:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:40,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:40,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:40,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:11:40,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:40,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:40,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:40,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:40,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:40,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:40,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:40,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:11:40,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:40,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:11:40,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:40,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:11:40,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:40,696 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:40,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2080752445] [2020-10-13 08:11:40,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:40,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:40,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159516293] [2020-10-13 08:11:40,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:40,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:40,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:40,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:40,704 INFO L87 Difference]: Start difference. First operand 811 states and 1110 transitions. Second operand 5 states. [2020-10-13 08:11:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:42,390 INFO L93 Difference]: Finished difference Result 1639 states and 2251 transitions. [2020-10-13 08:11:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:42,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-10-13 08:11:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:42,398 INFO L225 Difference]: With dead ends: 1639 [2020-10-13 08:11:42,398 INFO L226 Difference]: Without dead ends: 817 [2020-10-13 08:11:42,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:42,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-10-13 08:11:42,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 811. [2020-10-13 08:11:42,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-10-13 08:11:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1104 transitions. [2020-10-13 08:11:42,430 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1104 transitions. Word has length 136 [2020-10-13 08:11:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:42,431 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 1104 transitions. [2020-10-13 08:11:42,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1104 transitions. [2020-10-13 08:11:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 08:11:42,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:42,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:42,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:11:42,441 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:42,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1902928694, now seen corresponding path program 1 times [2020-10-13 08:11:42,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:42,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129237371] [2020-10-13 08:11:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:42,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:43,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:43,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:11:43,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:11:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-10-13 08:11:43,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 08:11:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 08:11:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:43,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:43,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:43,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:43,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:11:43,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:43,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:43,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:43,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:43,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 08:11:43,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:43,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 08:11:43,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:43,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 08:11:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:43,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129237371] [2020-10-13 08:11:43,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:43,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:43,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005895459] [2020-10-13 08:11:43,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:43,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:43,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:43,591 INFO L87 Difference]: Start difference. First operand 811 states and 1104 transitions. Second operand 5 states. [2020-10-13 08:11:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:45,966 INFO L93 Difference]: Finished difference Result 2027 states and 2849 transitions. [2020-10-13 08:11:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:45,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-13 08:11:45,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:45,980 INFO L225 Difference]: With dead ends: 2027 [2020-10-13 08:11:45,980 INFO L226 Difference]: Without dead ends: 1222 [2020-10-13 08:11:45,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2020-10-13 08:11:46,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1211. [2020-10-13 08:11:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-10-13 08:11:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1656 transitions. [2020-10-13 08:11:46,019 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1656 transitions. Word has length 144 [2020-10-13 08:11:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:46,020 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1656 transitions. [2020-10-13 08:11:46,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1656 transitions. [2020-10-13 08:11:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 08:11:46,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:46,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:46,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:11:46,024 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:46,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:46,024 INFO L82 PathProgramCache]: Analyzing trace with hash 405224014, now seen corresponding path program 1 times [2020-10-13 08:11:46,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:46,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1877562301] [2020-10-13 08:11:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:46,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:46,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:46,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:48,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:48,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 08:11:48,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:11:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2149 [2020-10-13 08:11:48,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-13 08:11:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:11:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:48,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:48,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:48,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:48,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:48,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:48,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:11:48,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:48,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:48,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:48,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:48,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:48,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 08:11:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 08:11:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:48,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-13 08:11:48,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:11:48,683 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:11:48,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1877562301] [2020-10-13 08:11:48,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:48,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:48,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572684252] [2020-10-13 08:11:48,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:48,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:48,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:48,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:48,687 INFO L87 Difference]: Start difference. First operand 1211 states and 1656 transitions. Second operand 5 states. [2020-10-13 08:11:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:50,592 INFO L93 Difference]: Finished difference Result 2437 states and 3344 transitions. [2020-10-13 08:11:50,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:50,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-13 08:11:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:50,606 INFO L225 Difference]: With dead ends: 2437 [2020-10-13 08:11:50,606 INFO L226 Difference]: Without dead ends: 1219 [2020-10-13 08:11:50,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-10-13 08:11:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1211. [2020-10-13 08:11:50,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-10-13 08:11:50,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1652 transitions. [2020-10-13 08:11:50,651 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1652 transitions. Word has length 199 [2020-10-13 08:11:50,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:50,652 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1652 transitions. [2020-10-13 08:11:50,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1652 transitions. [2020-10-13 08:11:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 08:11:50,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:50,656 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:50,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:11:50,656 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:50,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:50,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1254826487, now seen corresponding path program 1 times [2020-10-13 08:11:50,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:50,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554860308] [2020-10-13 08:11:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:50,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:50,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:50,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:55,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:55,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 08:11:55,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:11:55,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-13 08:11:55,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:11:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-13 08:11:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 08:11:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:55,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:11:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:55,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:55,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:11:55,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:55,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:11:55,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:55,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:55,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:55,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:55,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:11:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:55,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:55,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:11:55,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:11:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:11:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:11:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:55,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:11:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:56,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:11:56,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:11:56,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:11:56,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 08:11:56,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:11:56,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:11:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:11:56,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:11:56,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:11:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:11:56,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554860308] [2020-10-13 08:11:56,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:11:56,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:11:56,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744202052] [2020-10-13 08:11:56,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:11:56,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:11:56,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:11:56,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:11:56,151 INFO L87 Difference]: Start difference. First operand 1211 states and 1652 transitions. Second operand 5 states. [2020-10-13 08:11:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:11:59,129 INFO L93 Difference]: Finished difference Result 2995 states and 4144 transitions. [2020-10-13 08:11:59,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:11:59,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-10-13 08:11:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:11:59,142 INFO L225 Difference]: With dead ends: 2995 [2020-10-13 08:11:59,142 INFO L226 Difference]: Without dead ends: 1790 [2020-10-13 08:11:59,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:11:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2020-10-13 08:11:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1783. [2020-10-13 08:11:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1783 states. [2020-10-13 08:11:59,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2377 transitions. [2020-10-13 08:11:59,196 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2377 transitions. Word has length 212 [2020-10-13 08:11:59,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:11:59,197 INFO L479 AbstractCegarLoop]: Abstraction has 1783 states and 2377 transitions. [2020-10-13 08:11:59,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:11:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2377 transitions. [2020-10-13 08:11:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-13 08:11:59,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:11:59,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:11:59,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:11:59,202 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:11:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:11:59,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2115582328, now seen corresponding path program 1 times [2020-10-13 08:11:59,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:11:59,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440494037] [2020-10-13 08:11:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:11:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:11:59,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:59,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:11:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:01,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:03,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:04,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-13 08:12:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:12:04,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 08:12:04,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:12:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 08:12:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:04,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:04,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:04,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:04,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:12:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:04,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:12:04,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:12:04,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:04,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:12:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:04,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 08:12:04,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:12:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 08:12:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-13 08:12:04,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440494037] [2020-10-13 08:12:04,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:04,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:12:04,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732988866] [2020-10-13 08:12:04,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:12:04,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:04,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:12:04,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:12:04,598 INFO L87 Difference]: Start difference. First operand 1783 states and 2377 transitions. Second operand 6 states. [2020-10-13 08:12:07,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:07,476 INFO L93 Difference]: Finished difference Result 5107 states and 7131 transitions. [2020-10-13 08:12:07,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:12:07,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-10-13 08:12:07,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:07,496 INFO L225 Difference]: With dead ends: 5107 [2020-10-13 08:12:07,496 INFO L226 Difference]: Without dead ends: 3330 [2020-10-13 08:12:07,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:12:07,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2020-10-13 08:12:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3305. [2020-10-13 08:12:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2020-10-13 08:12:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4568 transitions. [2020-10-13 08:12:07,623 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4568 transitions. Word has length 219 [2020-10-13 08:12:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:07,624 INFO L479 AbstractCegarLoop]: Abstraction has 3305 states and 4568 transitions. [2020-10-13 08:12:07,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:12:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4568 transitions. [2020-10-13 08:12:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-13 08:12:07,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:07,631 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:07,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:12:07,631 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:07,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1324152887, now seen corresponding path program 1 times [2020-10-13 08:12:07,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:07,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426718404] [2020-10-13 08:12:07,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:07,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:11,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4051 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:12:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 08:12:11,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:11,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:11,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:11,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:11,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:11,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:11,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:11,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:11,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:12:11,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:12:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:12:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 08:12:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:12,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:12,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:12:12,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:12:12,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-13 08:12:12,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:12,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:12:12,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:12:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:12:12,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426718404] [2020-10-13 08:12:12,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:12,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:12,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832132167] [2020-10-13 08:12:12,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:12,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:12,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:12,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:12,921 INFO L87 Difference]: Start difference. First operand 3305 states and 4568 transitions. Second operand 7 states. [2020-10-13 08:12:15,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:15,874 INFO L93 Difference]: Finished difference Result 6922 states and 10099 transitions. [2020-10-13 08:12:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:12:15,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-13 08:12:15,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:15,896 INFO L225 Difference]: With dead ends: 6922 [2020-10-13 08:12:15,897 INFO L226 Difference]: Without dead ends: 3429 [2020-10-13 08:12:15,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:12:15,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3429 states. [2020-10-13 08:12:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3429 to 3331. [2020-10-13 08:12:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3331 states. [2020-10-13 08:12:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4639 transitions. [2020-10-13 08:12:16,026 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4639 transitions. Word has length 239 [2020-10-13 08:12:16,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:16,027 INFO L479 AbstractCegarLoop]: Abstraction has 3331 states and 4639 transitions. [2020-10-13 08:12:16,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4639 transitions. [2020-10-13 08:12:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 08:12:16,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:16,034 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:16,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:12:16,034 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:16,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1832970718, now seen corresponding path program 1 times [2020-10-13 08:12:16,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:16,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506407932] [2020-10-13 08:12:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:16,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:16,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1135 [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:17,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:12:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:12:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:12:17,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:17,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:17,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:17,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:17,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:17,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 08:12:17,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:17,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:17,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:12:17,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:17,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:17,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:17,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:17,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 08:12:17,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 08:12:17,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:17,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:12:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:17,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 08:12:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:17,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:17,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:17,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:12:17,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 08:12:17,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-13 08:12:17,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:17,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 98 proven. 83 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:12:17,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506407932] [2020-10-13 08:12:17,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:17,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:17,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461058474] [2020-10-13 08:12:17,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:17,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:17,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:17,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:17,695 INFO L87 Difference]: Start difference. First operand 3331 states and 4639 transitions. Second operand 7 states. [2020-10-13 08:12:20,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:20,310 INFO L93 Difference]: Finished difference Result 9043 states and 13070 transitions. [2020-10-13 08:12:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:12:20,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-10-13 08:12:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:20,338 INFO L225 Difference]: With dead ends: 9043 [2020-10-13 08:12:20,338 INFO L226 Difference]: Without dead ends: 5718 [2020-10-13 08:12:20,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:12:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2020-10-13 08:12:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5492. [2020-10-13 08:12:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5492 states. [2020-10-13 08:12:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 7470 transitions. [2020-10-13 08:12:20,499 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 7470 transitions. Word has length 249 [2020-10-13 08:12:20,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:20,500 INFO L479 AbstractCegarLoop]: Abstraction has 5492 states and 7470 transitions. [2020-10-13 08:12:20,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 7470 transitions. [2020-10-13 08:12:20,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-13 08:12:20,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:20,510 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:20,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:12:20,511 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1281637910, now seen corresponding path program 1 times [2020-10-13 08:12:20,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:20,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381509786] [2020-10-13 08:12:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:20,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:20,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:22,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:22,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1448 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:12:22,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:22,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:22,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:22,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:22,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:22,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:12:22,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:12:22,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:22,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:22,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:22,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:12:22,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 08:12:22,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 08:12:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 08:12:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:22,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:22,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:12:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 98 proven. 89 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 08:12:22,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381509786] [2020-10-13 08:12:22,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:22,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:22,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201193398] [2020-10-13 08:12:22,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:22,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:22,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:22,537 INFO L87 Difference]: Start difference. First operand 5492 states and 7470 transitions. Second operand 7 states. [2020-10-13 08:12:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:24,931 INFO L93 Difference]: Finished difference Result 11407 states and 15580 transitions. [2020-10-13 08:12:24,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:12:24,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-13 08:12:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:24,956 INFO L225 Difference]: With dead ends: 11407 [2020-10-13 08:12:24,956 INFO L226 Difference]: Without dead ends: 5921 [2020-10-13 08:12:24,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:12:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2020-10-13 08:12:25,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5315. [2020-10-13 08:12:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5315 states. [2020-10-13 08:12:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 7168 transitions. [2020-10-13 08:12:25,110 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 7168 transitions. Word has length 260 [2020-10-13 08:12:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:25,110 INFO L479 AbstractCegarLoop]: Abstraction has 5315 states and 7168 transitions. [2020-10-13 08:12:25,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 7168 transitions. [2020-10-13 08:12:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-13 08:12:25,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:25,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:25,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:12:25,118 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:25,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:25,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1581542188, now seen corresponding path program 1 times [2020-10-13 08:12:25,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:25,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525985926] [2020-10-13 08:12:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:25,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:26,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:26,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-13 08:12:26,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:12:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1325 [2020-10-13 08:12:26,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 08:12:26,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:12:26,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:26,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:26,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:26,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:26,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:26,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:12:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:26,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:26,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:26,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:12:26,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:26,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:12:26,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:26,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:26,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:12:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:26,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:26,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:12:26,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:12:26,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:26,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:12:26,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-13 08:12:26,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525985926] [2020-10-13 08:12:26,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:26,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:12:26,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686377475] [2020-10-13 08:12:26,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:12:26,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:26,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:12:26,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:12:26,843 INFO L87 Difference]: Start difference. First operand 5315 states and 7168 transitions. Second operand 5 states. [2020-10-13 08:12:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:28,453 INFO L93 Difference]: Finished difference Result 10654 states and 14421 transitions. [2020-10-13 08:12:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:12:28,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-13 08:12:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:28,478 INFO L225 Difference]: With dead ends: 10654 [2020-10-13 08:12:28,478 INFO L226 Difference]: Without dead ends: 5325 [2020-10-13 08:12:28,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:12:28,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2020-10-13 08:12:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 5313. [2020-10-13 08:12:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5313 states. [2020-10-13 08:12:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5313 states to 5313 states and 7146 transitions. [2020-10-13 08:12:28,685 INFO L78 Accepts]: Start accepts. Automaton has 5313 states and 7146 transitions. Word has length 273 [2020-10-13 08:12:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:28,685 INFO L479 AbstractCegarLoop]: Abstraction has 5313 states and 7146 transitions. [2020-10-13 08:12:28,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:12:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5313 states and 7146 transitions. [2020-10-13 08:12:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-13 08:12:28,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:28,698 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:28,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:12:28,698 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:28,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:28,700 INFO L82 PathProgramCache]: Analyzing trace with hash -865039372, now seen corresponding path program 1 times [2020-10-13 08:12:28,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:28,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082810109] [2020-10-13 08:12:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:29,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:29,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-13 08:12:29,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:29,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-13 08:12:29,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:12:29,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-13 08:12:29,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:29,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:29,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:29,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:29,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:12:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:29,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:29,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:12:29,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:29,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:12:29,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:29,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:12:29,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:12:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:29,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:12:29,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:12:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:12:29,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082810109] [2020-10-13 08:12:29,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:29,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:29,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953937730] [2020-10-13 08:12:29,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:29,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:29,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:29,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:29,620 INFO L87 Difference]: Start difference. First operand 5313 states and 7146 transitions. Second operand 7 states. [2020-10-13 08:12:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:32,108 INFO L93 Difference]: Finished difference Result 10886 states and 14768 transitions. [2020-10-13 08:12:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:12:32,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 292 [2020-10-13 08:12:32,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:32,128 INFO L225 Difference]: With dead ends: 10886 [2020-10-13 08:12:32,128 INFO L226 Difference]: Without dead ends: 5579 [2020-10-13 08:12:32,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:12:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5579 states. [2020-10-13 08:12:32,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5579 to 5361. [2020-10-13 08:12:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5361 states. [2020-10-13 08:12:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 7098 transitions. [2020-10-13 08:12:32,262 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 7098 transitions. Word has length 292 [2020-10-13 08:12:32,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:32,262 INFO L479 AbstractCegarLoop]: Abstraction has 5361 states and 7098 transitions. [2020-10-13 08:12:32,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 7098 transitions. [2020-10-13 08:12:32,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 08:12:32,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:32,270 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:32,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:12:32,271 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:32,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1206013440, now seen corresponding path program 1 times [2020-10-13 08:12:32,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:32,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158392334] [2020-10-13 08:12:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:32,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:32,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:32,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 309 [2020-10-13 08:12:32,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:32,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-13 08:12:32,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:12:32,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:12:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:32,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:32,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:32,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:32,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:32,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:32,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:12:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:33,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:12:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:33,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:12:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 08:12:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:12:33,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 08:12:33,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158392334] [2020-10-13 08:12:33,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:33,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:33,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597482089] [2020-10-13 08:12:33,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:33,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:33,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:33,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:33,272 INFO L87 Difference]: Start difference. First operand 5361 states and 7098 transitions. Second operand 7 states. [2020-10-13 08:12:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:36,929 INFO L93 Difference]: Finished difference Result 13286 states and 18066 transitions. [2020-10-13 08:12:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:12:36,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 297 [2020-10-13 08:12:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:36,957 INFO L225 Difference]: With dead ends: 13286 [2020-10-13 08:12:36,958 INFO L226 Difference]: Without dead ends: 7931 [2020-10-13 08:12:36,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:12:36,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7931 states. [2020-10-13 08:12:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7931 to 7711. [2020-10-13 08:12:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7711 states. [2020-10-13 08:12:37,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7711 states to 7711 states and 10117 transitions. [2020-10-13 08:12:37,234 INFO L78 Accepts]: Start accepts. Automaton has 7711 states and 10117 transitions. Word has length 297 [2020-10-13 08:12:37,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:37,235 INFO L479 AbstractCegarLoop]: Abstraction has 7711 states and 10117 transitions. [2020-10-13 08:12:37,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7711 states and 10117 transitions. [2020-10-13 08:12:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 08:12:37,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:37,248 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:37,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:12:37,249 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:37,249 INFO L82 PathProgramCache]: Analyzing trace with hash 981290573, now seen corresponding path program 1 times [2020-10-13 08:12:37,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:37,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095150892] [2020-10-13 08:12:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:37,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:38,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:38,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 08:12:38,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 282 [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 08:12:38,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:39,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:39,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:39,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:39,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:12:39,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:39,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:39,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:39,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:39,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:39,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:12:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:39,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:39,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 08:12:39,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 08:12:39,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 08:12:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:12:39,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095150892] [2020-10-13 08:12:39,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:39,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:12:39,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747679989] [2020-10-13 08:12:39,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:12:39,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:39,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:12:39,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:12:39,409 INFO L87 Difference]: Start difference. First operand 7711 states and 10117 transitions. Second operand 5 states. [2020-10-13 08:12:41,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:41,087 INFO L93 Difference]: Finished difference Result 15443 states and 20348 transitions. [2020-10-13 08:12:41,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:12:41,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 326 [2020-10-13 08:12:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:41,123 INFO L225 Difference]: With dead ends: 15443 [2020-10-13 08:12:41,123 INFO L226 Difference]: Without dead ends: 7721 [2020-10-13 08:12:41,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:12:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2020-10-13 08:12:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7709. [2020-10-13 08:12:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7709 states. [2020-10-13 08:12:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 10076 transitions. [2020-10-13 08:12:41,316 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 10076 transitions. Word has length 326 [2020-10-13 08:12:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:41,316 INFO L479 AbstractCegarLoop]: Abstraction has 7709 states and 10076 transitions. [2020-10-13 08:12:41,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:12:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 10076 transitions. [2020-10-13 08:12:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-13 08:12:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:41,335 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:41,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:12:41,335 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash 210795933, now seen corresponding path program 1 times [2020-10-13 08:12:41,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:41,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260768699] [2020-10-13 08:12:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:41,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:41,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:42,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3061 [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-13 08:12:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:12:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:44,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:44,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:44,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:44,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:12:44,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:44,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:44,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:44,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:44,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:44,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:44,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:12:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:44,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 08:12:44,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:44,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-13 08:12:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:44,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:44,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:12:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:45,214 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 335 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 08:12:45,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260768699] [2020-10-13 08:12:45,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:45,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:45,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548098831] [2020-10-13 08:12:45,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:45,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:45,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:45,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:45,216 INFO L87 Difference]: Start difference. First operand 7709 states and 10076 transitions. Second operand 7 states. [2020-10-13 08:12:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:48,082 INFO L93 Difference]: Finished difference Result 15637 states and 20485 transitions. [2020-10-13 08:12:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:12:48,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-13 08:12:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:48,104 INFO L225 Difference]: With dead ends: 15637 [2020-10-13 08:12:48,104 INFO L226 Difference]: Without dead ends: 7919 [2020-10-13 08:12:48,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:12:48,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2020-10-13 08:12:48,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 7709. [2020-10-13 08:12:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7709 states. [2020-10-13 08:12:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 10050 transitions. [2020-10-13 08:12:48,297 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 10050 transitions. Word has length 361 [2020-10-13 08:12:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:48,298 INFO L479 AbstractCegarLoop]: Abstraction has 7709 states and 10050 transitions. [2020-10-13 08:12:48,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:48,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 10050 transitions. [2020-10-13 08:12:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-10-13 08:12:48,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:48,312 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:48,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:12:48,312 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:48,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1316213869, now seen corresponding path program 1 times [2020-10-13 08:12:48,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:48,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544964623] [2020-10-13 08:12:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:48,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:49,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:49,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-13 08:12:49,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:12:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1578 [2020-10-13 08:12:49,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 08:12:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:12:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:50,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:50,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:50,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:50,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:12:50,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:50,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:50,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:50,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:50,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:50,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:50,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:12:50,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:50,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 08:12:50,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:50,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:12:50,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:50,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:12:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:50,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:50,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:50,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:12:50,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:12:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-13 08:12:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:50,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:50,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:12:50,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:50,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:12:50,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:12:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 234 proven. 85 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-13 08:12:50,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544964623] [2020-10-13 08:12:50,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:50,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:50,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17998943] [2020-10-13 08:12:50,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:50,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:50,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:50,401 INFO L87 Difference]: Start difference. First operand 7709 states and 10050 transitions. Second operand 7 states. [2020-10-13 08:12:53,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:53,162 INFO L93 Difference]: Finished difference Result 18311 states and 24436 transitions. [2020-10-13 08:12:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:12:53,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 368 [2020-10-13 08:12:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:53,190 INFO L225 Difference]: With dead ends: 18311 [2020-10-13 08:12:53,190 INFO L226 Difference]: Without dead ends: 10608 [2020-10-13 08:12:53,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:12:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2020-10-13 08:12:53,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 10582. [2020-10-13 08:12:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10582 states. [2020-10-13 08:12:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10582 states to 10582 states and 14019 transitions. [2020-10-13 08:12:53,443 INFO L78 Accepts]: Start accepts. Automaton has 10582 states and 14019 transitions. Word has length 368 [2020-10-13 08:12:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:53,444 INFO L479 AbstractCegarLoop]: Abstraction has 10582 states and 14019 transitions. [2020-10-13 08:12:53,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand 10582 states and 14019 transitions. [2020-10-13 08:12:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-13 08:12:53,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:53,459 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:53,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:12:53,459 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:53,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1860738557, now seen corresponding path program 1 times [2020-10-13 08:12:53,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:53,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356138488] [2020-10-13 08:12:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:53,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:53,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:53,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:56,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3028 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 08:12:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:12:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:56,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:56,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:56,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:12:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:56,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:56,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:56,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:12:56,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:12:56,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:12:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:56,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:56,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:12:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 08:12:56,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:56,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-13 08:12:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:57,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:12:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:12:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:12:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 242 proven. 93 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-13 08:12:57,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356138488] [2020-10-13 08:12:57,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:12:57,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:12:57,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546539620] [2020-10-13 08:12:57,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:12:57,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:12:57,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:12:57,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:12:57,141 INFO L87 Difference]: Start difference. First operand 10582 states and 14019 transitions. Second operand 7 states. [2020-10-13 08:12:59,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:12:59,516 INFO L93 Difference]: Finished difference Result 21564 states and 28558 transitions. [2020-10-13 08:12:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:12:59,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 376 [2020-10-13 08:12:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:12:59,543 INFO L225 Difference]: With dead ends: 21564 [2020-10-13 08:12:59,543 INFO L226 Difference]: Without dead ends: 10797 [2020-10-13 08:12:59,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:12:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10797 states. [2020-10-13 08:12:59,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10797 to 10584. [2020-10-13 08:12:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10584 states. [2020-10-13 08:12:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10584 states to 10584 states and 13991 transitions. [2020-10-13 08:12:59,798 INFO L78 Accepts]: Start accepts. Automaton has 10584 states and 13991 transitions. Word has length 376 [2020-10-13 08:12:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:12:59,799 INFO L479 AbstractCegarLoop]: Abstraction has 10584 states and 13991 transitions. [2020-10-13 08:12:59,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:12:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10584 states and 13991 transitions. [2020-10-13 08:12:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-13 08:12:59,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:12:59,811 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:12:59,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:12:59,811 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:12:59,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:12:59,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1616543199, now seen corresponding path program 1 times [2020-10-13 08:12:59,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:12:59,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606257423] [2020-10-13 08:12:59,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:12:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:12:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-13 08:13:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:13:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:00,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:00,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:00,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:00,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:00,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:13:00,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:13:00,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:00,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:00,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:00,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:00,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:00,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:00,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:13:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:00,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:00,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:00,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:13:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 08:13:00,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:00,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:13:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 08:13:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:00,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:00,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:00,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-13 08:13:01,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606257423] [2020-10-13 08:13:01,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:01,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:01,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429643002] [2020-10-13 08:13:01,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:01,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:01,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:01,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:01,145 INFO L87 Difference]: Start difference. First operand 10584 states and 13991 transitions. Second operand 7 states. [2020-10-13 08:13:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:03,798 INFO L93 Difference]: Finished difference Result 21956 states and 28951 transitions. [2020-10-13 08:13:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:13:03,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 378 [2020-10-13 08:13:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:03,825 INFO L225 Difference]: With dead ends: 21956 [2020-10-13 08:13:03,826 INFO L226 Difference]: Without dead ends: 11378 [2020-10-13 08:13:03,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:13:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2020-10-13 08:13:04,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 11348. [2020-10-13 08:13:04,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11348 states. [2020-10-13 08:13:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11348 states to 11348 states and 14881 transitions. [2020-10-13 08:13:04,065 INFO L78 Accepts]: Start accepts. Automaton has 11348 states and 14881 transitions. Word has length 378 [2020-10-13 08:13:04,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:04,066 INFO L479 AbstractCegarLoop]: Abstraction has 11348 states and 14881 transitions. [2020-10-13 08:13:04,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 11348 states and 14881 transitions. [2020-10-13 08:13:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-13 08:13:04,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:04,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:04,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:13:04,078 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:04,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:04,079 INFO L82 PathProgramCache]: Analyzing trace with hash -2117818289, now seen corresponding path program 1 times [2020-10-13 08:13:04,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:04,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006480658] [2020-10-13 08:13:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:04,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:04,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:04,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3376 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 08:13:07,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:07,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:07,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:07,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:07,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:07,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:07,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:07,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:07,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:07,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:07,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:07,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:07,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:07,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:13:07,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:07,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:13:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-13 08:13:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:07,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:13:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:07,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:07,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:07,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 08:13:07,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-13 08:13:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:07,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:07,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:08,076 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 242 proven. 93 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-13 08:13:08,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006480658] [2020-10-13 08:13:08,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:08,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:08,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383130955] [2020-10-13 08:13:08,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:08,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:08,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:08,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:08,078 INFO L87 Difference]: Start difference. First operand 11348 states and 14881 transitions. Second operand 7 states. [2020-10-13 08:13:11,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:11,100 INFO L93 Difference]: Finished difference Result 23285 states and 30511 transitions. [2020-10-13 08:13:11,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:13:11,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 386 [2020-10-13 08:13:11,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:11,131 INFO L225 Difference]: With dead ends: 23285 [2020-10-13 08:13:11,132 INFO L226 Difference]: Without dead ends: 11943 [2020-10-13 08:13:11,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:13:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11943 states. [2020-10-13 08:13:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11943 to 11536. [2020-10-13 08:13:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11536 states. [2020-10-13 08:13:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11536 states to 11536 states and 15097 transitions. [2020-10-13 08:13:11,381 INFO L78 Accepts]: Start accepts. Automaton has 11536 states and 15097 transitions. Word has length 386 [2020-10-13 08:13:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:11,381 INFO L479 AbstractCegarLoop]: Abstraction has 11536 states and 15097 transitions. [2020-10-13 08:13:11,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:11,381 INFO L276 IsEmpty]: Start isEmpty. Operand 11536 states and 15097 transitions. [2020-10-13 08:13:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-13 08:13:11,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:11,398 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:11,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:13:11,398 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:11,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1736606564, now seen corresponding path program 1 times [2020-10-13 08:13:11,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:11,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419635769] [2020-10-13 08:13:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:11,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:11,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:12,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 402 [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2150 [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:13,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 08:13:13,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 08:13:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:13,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:13,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:13,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:13,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:13,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:13,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:13,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:13,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:13,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:13:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:13,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 08:13:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 08:13:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 08:13:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 08:13:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:13,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:13,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:14,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:14,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:14,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:14,190 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 347 proven. 2 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-13 08:13:14,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419635769] [2020-10-13 08:13:14,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:14,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:14,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395153242] [2020-10-13 08:13:14,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:14,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:14,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:14,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:14,192 INFO L87 Difference]: Start difference. First operand 11536 states and 15097 transitions. Second operand 7 states. [2020-10-13 08:13:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:16,355 INFO L93 Difference]: Finished difference Result 23120 states and 30374 transitions. [2020-10-13 08:13:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:13:16,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 388 [2020-10-13 08:13:16,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:16,375 INFO L225 Difference]: With dead ends: 23120 [2020-10-13 08:13:16,375 INFO L226 Difference]: Without dead ends: 11572 [2020-10-13 08:13:16,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:13:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2020-10-13 08:13:16,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 11534. [2020-10-13 08:13:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11534 states. [2020-10-13 08:13:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11534 states to 11534 states and 15038 transitions. [2020-10-13 08:13:16,600 INFO L78 Accepts]: Start accepts. Automaton has 11534 states and 15038 transitions. Word has length 388 [2020-10-13 08:13:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:16,600 INFO L479 AbstractCegarLoop]: Abstraction has 11534 states and 15038 transitions. [2020-10-13 08:13:16,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 11534 states and 15038 transitions. [2020-10-13 08:13:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-13 08:13:16,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:16,613 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:16,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:13:16,613 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash -605088996, now seen corresponding path program 1 times [2020-10-13 08:13:16,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:16,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650692940] [2020-10-13 08:13:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:16,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:17,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:18,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:18,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 413 [2020-10-13 08:13:18,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2066 [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:13:18,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:18,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:18,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:18,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:18,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:18,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:13:18,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 08:13:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:18,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:13:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:18,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:19,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:19,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-13 08:13:19,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:13:19,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:19,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 08:13:19,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:19,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-13 08:13:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:19,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:19,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:13:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 250 proven. 101 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-13 08:13:19,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650692940] [2020-10-13 08:13:19,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:19,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:19,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150276202] [2020-10-13 08:13:19,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:19,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:19,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:19,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:19,302 INFO L87 Difference]: Start difference. First operand 11534 states and 15038 transitions. Second operand 7 states. [2020-10-13 08:13:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:22,439 INFO L93 Difference]: Finished difference Result 25218 states and 33961 transitions. [2020-10-13 08:13:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:13:22,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 399 [2020-10-13 08:13:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:22,469 INFO L225 Difference]: With dead ends: 25218 [2020-10-13 08:13:22,469 INFO L226 Difference]: Without dead ends: 13690 [2020-10-13 08:13:22,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:13:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13690 states. [2020-10-13 08:13:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13690 to 13218. [2020-10-13 08:13:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13218 states. [2020-10-13 08:13:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13218 states to 13218 states and 16848 transitions. [2020-10-13 08:13:22,742 INFO L78 Accepts]: Start accepts. Automaton has 13218 states and 16848 transitions. Word has length 399 [2020-10-13 08:13:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:22,743 INFO L479 AbstractCegarLoop]: Abstraction has 13218 states and 16848 transitions. [2020-10-13 08:13:22,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13218 states and 16848 transitions. [2020-10-13 08:13:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-10-13 08:13:22,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:22,765 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:22,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:13:22,767 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:22,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:22,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1996729602, now seen corresponding path program 1 times [2020-10-13 08:13:22,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:22,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288082006] [2020-10-13 08:13:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:22,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:23,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:23,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:25,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:25,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 421 [2020-10-13 08:13:25,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:13:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2528 [2020-10-13 08:13:25,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-13 08:13:25,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 08:13:25,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:25,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:25,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:25,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:25,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:25,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-13 08:13:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:25,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-13 08:13:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:25,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:25,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:13:25,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:25,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 08:13:25,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:25,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 08:13:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:25,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-10-13 08:13:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:25,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 242 proven. 93 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-13 08:13:25,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288082006] [2020-10-13 08:13:25,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:25,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:25,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321480393] [2020-10-13 08:13:25,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:25,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:25,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:25,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:25,962 INFO L87 Difference]: Start difference. First operand 13218 states and 16848 transitions. Second operand 7 states. [2020-10-13 08:13:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:28,942 INFO L93 Difference]: Finished difference Result 27053 states and 34502 transitions. [2020-10-13 08:13:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 08:13:28,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 407 [2020-10-13 08:13:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:28,969 INFO L225 Difference]: With dead ends: 27053 [2020-10-13 08:13:28,970 INFO L226 Difference]: Without dead ends: 13841 [2020-10-13 08:13:28,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:13:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13841 states. [2020-10-13 08:13:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13841 to 13614. [2020-10-13 08:13:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13614 states. [2020-10-13 08:13:29,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13614 states to 13614 states and 17346 transitions. [2020-10-13 08:13:29,214 INFO L78 Accepts]: Start accepts. Automaton has 13614 states and 17346 transitions. Word has length 407 [2020-10-13 08:13:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:29,215 INFO L479 AbstractCegarLoop]: Abstraction has 13614 states and 17346 transitions. [2020-10-13 08:13:29,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 13614 states and 17346 transitions. [2020-10-13 08:13:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-13 08:13:29,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:29,229 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:29,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:13:29,230 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:29,231 INFO L82 PathProgramCache]: Analyzing trace with hash -319241268, now seen corresponding path program 1 times [2020-10-13 08:13:29,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:29,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254920767] [2020-10-13 08:13:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:30,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:31,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:31,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 423 [2020-10-13 08:13:31,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:13:31,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2609 [2020-10-13 08:13:31,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:31,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:31,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-13 08:13:31,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 08:13:31,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:32,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:32,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:32,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:32,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:32,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:32,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:32,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:32,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:32,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 08:13:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:32,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 08:13:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-13 08:13:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:32,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:32,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:32,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:32,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:13:32,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-13 08:13:32,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:32,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 328 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 08:13:32,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254920767] [2020-10-13 08:13:32,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:32,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 08:13:32,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712291861] [2020-10-13 08:13:32,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 08:13:32,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:32,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 08:13:32,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:13:32,939 INFO L87 Difference]: Start difference. First operand 13614 states and 17346 transitions. Second operand 6 states. [2020-10-13 08:13:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:35,179 INFO L93 Difference]: Finished difference Result 27271 states and 34778 transitions. [2020-10-13 08:13:35,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 08:13:35,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 409 [2020-10-13 08:13:35,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:35,208 INFO L225 Difference]: With dead ends: 27271 [2020-10-13 08:13:35,208 INFO L226 Difference]: Without dead ends: 13642 [2020-10-13 08:13:35,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 08:13:35,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13642 states. [2020-10-13 08:13:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13642 to 13612. [2020-10-13 08:13:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13612 states. [2020-10-13 08:13:35,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13612 states to 13612 states and 17331 transitions. [2020-10-13 08:13:35,432 INFO L78 Accepts]: Start accepts. Automaton has 13612 states and 17331 transitions. Word has length 409 [2020-10-13 08:13:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:35,433 INFO L479 AbstractCegarLoop]: Abstraction has 13612 states and 17331 transitions. [2020-10-13 08:13:35,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 08:13:35,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13612 states and 17331 transitions. [2020-10-13 08:13:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-13 08:13:35,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:35,447 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:35,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:13:35,448 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:35,449 INFO L82 PathProgramCache]: Analyzing trace with hash 951837952, now seen corresponding path program 1 times [2020-10-13 08:13:35,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:35,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819962878] [2020-10-13 08:13:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:35,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 427 [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:35,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-13 08:13:35,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:13:35,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:36,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:36,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:36,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:36,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:36,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:36,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:36,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:36,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:36,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:13:36,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:13:36,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:36,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:36,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:36,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:13:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:36,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 08:13:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:36,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-13 08:13:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:36,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:36,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 08:13:36,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:36,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:36,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 08:13:36,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819962878] [2020-10-13 08:13:36,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:36,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:36,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807042364] [2020-10-13 08:13:36,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:36,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:36,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:36,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:36,535 INFO L87 Difference]: Start difference. First operand 13612 states and 17331 transitions. Second operand 7 states. [2020-10-13 08:13:39,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:39,598 INFO L93 Difference]: Finished difference Result 28161 states and 38213 transitions. [2020-10-13 08:13:39,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:13:39,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 413 [2020-10-13 08:13:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:39,647 INFO L225 Difference]: With dead ends: 28161 [2020-10-13 08:13:39,647 INFO L226 Difference]: Without dead ends: 14555 [2020-10-13 08:13:39,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:13:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14555 states. [2020-10-13 08:13:40,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14555 to 14182. [2020-10-13 08:13:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14182 states. [2020-10-13 08:13:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14182 states to 14182 states and 17986 transitions. [2020-10-13 08:13:40,085 INFO L78 Accepts]: Start accepts. Automaton has 14182 states and 17986 transitions. Word has length 413 [2020-10-13 08:13:40,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:40,085 INFO L479 AbstractCegarLoop]: Abstraction has 14182 states and 17986 transitions. [2020-10-13 08:13:40,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:40,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14182 states and 17986 transitions. [2020-10-13 08:13:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-10-13 08:13:40,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:40,101 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:40,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:13:40,102 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:40,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1911578707, now seen corresponding path program 1 times [2020-10-13 08:13:40,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:40,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674998227] [2020-10-13 08:13:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:40,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:40,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:40,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:44,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:44,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 449 [2020-10-13 08:13:44,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:13:44,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4143 [2020-10-13 08:13:44,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:44,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-13 08:13:44,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:13:44,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:44,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:44,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:44,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:44,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:44,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:44,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:44,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:44,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:44,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:44,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:44,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:44,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:13:44,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:44,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:44,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:13:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:44,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:44,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:44,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 08:13:44,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:44,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 08:13:44,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:44,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:44,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 08:13:44,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-13 08:13:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:44,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:44,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:44,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 08:13:44,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:44,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:44,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:44,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-13 08:13:45,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674998227] [2020-10-13 08:13:45,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:45,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:45,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521097009] [2020-10-13 08:13:45,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:45,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:45,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:45,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:45,153 INFO L87 Difference]: Start difference. First operand 14182 states and 17986 transitions. Second operand 7 states. [2020-10-13 08:13:48,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:48,154 INFO L93 Difference]: Finished difference Result 28384 states and 36035 transitions. [2020-10-13 08:13:48,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:13:48,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 435 [2020-10-13 08:13:48,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:48,179 INFO L225 Difference]: With dead ends: 28384 [2020-10-13 08:13:48,180 INFO L226 Difference]: Without dead ends: 14208 [2020-10-13 08:13:48,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:13:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14208 states. [2020-10-13 08:13:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14208 to 14182. [2020-10-13 08:13:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14182 states. [2020-10-13 08:13:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14182 states to 14182 states and 17948 transitions. [2020-10-13 08:13:48,394 INFO L78 Accepts]: Start accepts. Automaton has 14182 states and 17948 transitions. Word has length 435 [2020-10-13 08:13:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:48,395 INFO L479 AbstractCegarLoop]: Abstraction has 14182 states and 17948 transitions. [2020-10-13 08:13:48,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:13:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 14182 states and 17948 transitions. [2020-10-13 08:13:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2020-10-13 08:13:48,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:48,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:48,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:13:48,408 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:48,408 INFO L82 PathProgramCache]: Analyzing trace with hash 2052879596, now seen corresponding path program 1 times [2020-10-13 08:13:48,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:48,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272837434] [2020-10-13 08:13:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:48,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:48,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:49,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:49,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 470 [2020-10-13 08:13:49,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:13:49,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1390 [2020-10-13 08:13:49,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:49,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 300 [2020-10-13 08:13:49,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:13:49,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:49,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:49,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:49,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:49,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:49,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:13:49,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:49,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:49,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:13:49,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:49,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:49,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:49,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:13:49,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:13:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:50,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:13:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:50,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:50,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:50,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 08:13:50,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:13:50,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-13 08:13:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:50,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:50,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:50,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2020-10-13 08:13:50,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272837434] [2020-10-13 08:13:50,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:50,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:13:50,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062362197] [2020-10-13 08:13:50,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:13:50,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:50,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:13:50,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:13:50,301 INFO L87 Difference]: Start difference. First operand 14182 states and 17948 transitions. Second operand 5 states. [2020-10-13 08:13:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:13:51,831 INFO L93 Difference]: Finished difference Result 27967 states and 35414 transitions. [2020-10-13 08:13:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:13:51,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 456 [2020-10-13 08:13:51,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:13:51,864 INFO L225 Difference]: With dead ends: 27967 [2020-10-13 08:13:51,864 INFO L226 Difference]: Without dead ends: 13791 [2020-10-13 08:13:51,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:13:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13791 states. [2020-10-13 08:13:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13791 to 13768. [2020-10-13 08:13:52,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13768 states. [2020-10-13 08:13:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13768 states to 13768 states and 17331 transitions. [2020-10-13 08:13:52,111 INFO L78 Accepts]: Start accepts. Automaton has 13768 states and 17331 transitions. Word has length 456 [2020-10-13 08:13:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:13:52,112 INFO L479 AbstractCegarLoop]: Abstraction has 13768 states and 17331 transitions. [2020-10-13 08:13:52,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:13:52,112 INFO L276 IsEmpty]: Start isEmpty. Operand 13768 states and 17331 transitions. [2020-10-13 08:13:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-13 08:13:52,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:13:52,129 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:13:52,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:13:52,129 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:13:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:13:52,130 INFO L82 PathProgramCache]: Analyzing trace with hash 692257061, now seen corresponding path program 1 times [2020-10-13 08:13:52,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:13:52,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889180621] [2020-10-13 08:13:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:13:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:52,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:53,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:56,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:56,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-13 08:13:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:13:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4463 [2020-10-13 08:13:56,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 303 [2020-10-13 08:13:56,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:13:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:56,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:13:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:56,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:56,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:56,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:13:56,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:56,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:13:56,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:56,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:56,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:56,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:13:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:56,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:56,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 08:13:56,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:13:56,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:13:56,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:56,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:13:56,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-13 08:13:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:57,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:57,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:13:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:13:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 08:13:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-13 08:13:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:13:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:13:57,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:13:57,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:13:57,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:13:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-10-13 08:13:57,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889180621] [2020-10-13 08:13:57,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:13:57,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:13:57,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174054238] [2020-10-13 08:13:57,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:13:57,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:13:57,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:13:57,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:13:57,480 INFO L87 Difference]: Start difference. First operand 13768 states and 17331 transitions. Second operand 7 states. [2020-10-13 08:14:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:00,445 INFO L93 Difference]: Finished difference Result 29070 states and 36664 transitions. [2020-10-13 08:14:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:14:00,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 457 [2020-10-13 08:14:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:00,470 INFO L225 Difference]: With dead ends: 29070 [2020-10-13 08:14:00,470 INFO L226 Difference]: Without dead ends: 14926 [2020-10-13 08:14:00,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:14:00,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14926 states. [2020-10-13 08:14:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14926 to 13956. [2020-10-13 08:14:00,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13956 states. [2020-10-13 08:14:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13956 states to 13956 states and 17419 transitions. [2020-10-13 08:14:00,713 INFO L78 Accepts]: Start accepts. Automaton has 13956 states and 17419 transitions. Word has length 457 [2020-10-13 08:14:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:00,714 INFO L479 AbstractCegarLoop]: Abstraction has 13956 states and 17419 transitions. [2020-10-13 08:14:00,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13956 states and 17419 transitions. [2020-10-13 08:14:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-10-13 08:14:00,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:00,724 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:00,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 08:14:00,725 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:00,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:00,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1136952285, now seen corresponding path program 1 times [2020-10-13 08:14:00,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:00,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698557161] [2020-10-13 08:14:00,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:01,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 481 [2020-10-13 08:14:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3225 [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 217 [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 08:14:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:04,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:04,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:04,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:04,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:14:04,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:14:04,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:04,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:14:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 08:14:04,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-10-13 08:14:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:04,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 08:14:04,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2020-10-13 08:14:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:04,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:04,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 386 proven. 93 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-10-13 08:14:04,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698557161] [2020-10-13 08:14:04,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:04,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:04,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778928177] [2020-10-13 08:14:04,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:04,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:04,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:04,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:04,714 INFO L87 Difference]: Start difference. First operand 13956 states and 17419 transitions. Second operand 7 states. [2020-10-13 08:14:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:07,671 INFO L93 Difference]: Finished difference Result 28308 states and 35291 transitions. [2020-10-13 08:14:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:14:07,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 465 [2020-10-13 08:14:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:07,703 INFO L225 Difference]: With dead ends: 28308 [2020-10-13 08:14:07,703 INFO L226 Difference]: Without dead ends: 14358 [2020-10-13 08:14:07,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:14:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14358 states. [2020-10-13 08:14:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14358 to 14146. [2020-10-13 08:14:07,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14146 states. [2020-10-13 08:14:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14146 states to 14146 states and 17626 transitions. [2020-10-13 08:14:07,917 INFO L78 Accepts]: Start accepts. Automaton has 14146 states and 17626 transitions. Word has length 465 [2020-10-13 08:14:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:07,917 INFO L479 AbstractCegarLoop]: Abstraction has 14146 states and 17626 transitions. [2020-10-13 08:14:07,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14146 states and 17626 transitions. [2020-10-13 08:14:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-10-13 08:14:07,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:07,925 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:07,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 08:14:07,925 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:07,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:07,926 INFO L82 PathProgramCache]: Analyzing trace with hash -18314658, now seen corresponding path program 1 times [2020-10-13 08:14:07,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:07,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526529503] [2020-10-13 08:14:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:08,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:08,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 486 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:14:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:08,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:08,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:08,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:08,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:08,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:08,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:08,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:08,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:08,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:14:08,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:14:08,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:08,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:14:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:08,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:14:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-13 08:14:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:08,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-13 08:14:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:08,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:08,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:08,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:14:08,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-13 08:14:09,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526529503] [2020-10-13 08:14:09,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:09,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:09,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976658554] [2020-10-13 08:14:09,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:09,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:09,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:09,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:09,059 INFO L87 Difference]: Start difference. First operand 14146 states and 17626 transitions. Second operand 7 states. [2020-10-13 08:14:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:11,778 INFO L93 Difference]: Finished difference Result 30044 states and 37413 transitions. [2020-10-13 08:14:11,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:14:11,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 472 [2020-10-13 08:14:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:11,806 INFO L225 Difference]: With dead ends: 30044 [2020-10-13 08:14:11,807 INFO L226 Difference]: Without dead ends: 15904 [2020-10-13 08:14:11,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:14:11,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2020-10-13 08:14:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 15302. [2020-10-13 08:14:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15302 states. [2020-10-13 08:14:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15302 states to 15302 states and 18855 transitions. [2020-10-13 08:14:12,063 INFO L78 Accepts]: Start accepts. Automaton has 15302 states and 18855 transitions. Word has length 472 [2020-10-13 08:14:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:12,064 INFO L479 AbstractCegarLoop]: Abstraction has 15302 states and 18855 transitions. [2020-10-13 08:14:12,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:12,065 INFO L276 IsEmpty]: Start isEmpty. Operand 15302 states and 18855 transitions. [2020-10-13 08:14:12,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-13 08:14:12,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:12,085 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:12,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 08:14:12,086 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:12,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:12,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1294819570, now seen corresponding path program 1 times [2020-10-13 08:14:12,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:12,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35439839] [2020-10-13 08:14:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:12,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:12,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:14,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:14,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 493 [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:14:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 325 [2020-10-13 08:14:17,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:14:17,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:17,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:17,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:17,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:17,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:17,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:17,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-13 08:14:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:17,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:17,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-13 08:14:17,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-13 08:14:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:17,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:17,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:14:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-10-13 08:14:18,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35439839] [2020-10-13 08:14:18,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:18,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:18,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537585811] [2020-10-13 08:14:18,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:18,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:18,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:18,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:18,199 INFO L87 Difference]: Start difference. First operand 15302 states and 18855 transitions. Second operand 7 states. [2020-10-13 08:14:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:22,133 INFO L93 Difference]: Finished difference Result 33640 states and 41224 transitions. [2020-10-13 08:14:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:14:22,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 479 [2020-10-13 08:14:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:22,167 INFO L225 Difference]: With dead ends: 33640 [2020-10-13 08:14:22,167 INFO L226 Difference]: Without dead ends: 18154 [2020-10-13 08:14:22,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:14:22,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18154 states. [2020-10-13 08:14:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18154 to 15110. [2020-10-13 08:14:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15110 states. [2020-10-13 08:14:22,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15110 states to 15110 states and 18549 transitions. [2020-10-13 08:14:22,368 INFO L78 Accepts]: Start accepts. Automaton has 15110 states and 18549 transitions. Word has length 479 [2020-10-13 08:14:22,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:22,368 INFO L479 AbstractCegarLoop]: Abstraction has 15110 states and 18549 transitions. [2020-10-13 08:14:22,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 15110 states and 18549 transitions. [2020-10-13 08:14:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-10-13 08:14:22,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:22,380 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:22,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 08:14:22,381 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:22,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1507692168, now seen corresponding path program 1 times [2020-10-13 08:14:22,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:22,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439453854] [2020-10-13 08:14:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:22,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:22,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:22,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 505 [2020-10-13 08:14:22,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:22,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-10-13 08:14:22,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-13 08:14:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:14:22,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:22,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:22,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:22,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:22,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:22,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:22,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:23,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:23,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:23,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:23,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:23,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:23,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:23,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:14:23,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:23,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:14:23,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:23,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:23,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:23,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:23,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:14:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-13 08:14:23,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:23,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-13 08:14:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:23,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:23,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:23,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 08:14:23,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 400 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-13 08:14:23,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439453854] [2020-10-13 08:14:23,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:23,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:23,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496909351] [2020-10-13 08:14:23,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:23,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:23,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:23,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:23,517 INFO L87 Difference]: Start difference. First operand 15110 states and 18549 transitions. Second operand 7 states. [2020-10-13 08:14:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:26,224 INFO L93 Difference]: Finished difference Result 26853 states and 33143 transitions. [2020-10-13 08:14:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:14:26,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 491 [2020-10-13 08:14:26,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:26,244 INFO L225 Difference]: With dead ends: 26853 [2020-10-13 08:14:26,244 INFO L226 Difference]: Without dead ends: 11749 [2020-10-13 08:14:26,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:14:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11749 states. [2020-10-13 08:14:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11749 to 10509. [2020-10-13 08:14:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10509 states. [2020-10-13 08:14:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10509 states to 10509 states and 12307 transitions. [2020-10-13 08:14:26,380 INFO L78 Accepts]: Start accepts. Automaton has 10509 states and 12307 transitions. Word has length 491 [2020-10-13 08:14:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:26,380 INFO L479 AbstractCegarLoop]: Abstraction has 10509 states and 12307 transitions. [2020-10-13 08:14:26,380 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 10509 states and 12307 transitions. [2020-10-13 08:14:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-10-13 08:14:26,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:26,389 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:26,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-13 08:14:26,390 INFO L427 AbstractCegarLoop]: === Iteration 33 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:26,390 INFO L82 PathProgramCache]: Analyzing trace with hash 120370952, now seen corresponding path program 1 times [2020-10-13 08:14:26,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:26,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480145311] [2020-10-13 08:14:26,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:26,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:26,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:27,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:27,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 514 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-13 08:14:27,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:28,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:28,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:28,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:28,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:28,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:28,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:28,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:28,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 08:14:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:28,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:28,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:14:28,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:28,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 08:14:28,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:28,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-13 08:14:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:28,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:28,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:28,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 08:14:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-13 08:14:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:28,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 08:14:28,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 502 proven. 2 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2020-10-13 08:14:28,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480145311] [2020-10-13 08:14:28,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:28,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:28,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429007278] [2020-10-13 08:14:28,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:28,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:28,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:28,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:28,559 INFO L87 Difference]: Start difference. First operand 10509 states and 12307 transitions. Second operand 7 states. [2020-10-13 08:14:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:32,160 INFO L93 Difference]: Finished difference Result 21504 states and 26302 transitions. [2020-10-13 08:14:32,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 08:14:32,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 498 [2020-10-13 08:14:32,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:32,195 INFO L225 Difference]: With dead ends: 21504 [2020-10-13 08:14:32,195 INFO L226 Difference]: Without dead ends: 11001 [2020-10-13 08:14:32,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 08:14:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2020-10-13 08:14:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 10702. [2020-10-13 08:14:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2020-10-13 08:14:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 12398 transitions. [2020-10-13 08:14:32,451 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 12398 transitions. Word has length 498 [2020-10-13 08:14:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:32,451 INFO L479 AbstractCegarLoop]: Abstraction has 10702 states and 12398 transitions. [2020-10-13 08:14:32,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 12398 transitions. [2020-10-13 08:14:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-13 08:14:32,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:32,464 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:32,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-13 08:14:32,465 INFO L427 AbstractCegarLoop]: === Iteration 34 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:32,465 INFO L82 PathProgramCache]: Analyzing trace with hash -634907667, now seen corresponding path program 1 times [2020-10-13 08:14:32,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:32,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248301406] [2020-10-13 08:14:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:32,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:32,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:33,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 526 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2945 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 361 [2020-10-13 08:14:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:14:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:35,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:35,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:14:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:35,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:35,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 08:14:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:35,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 08:14:35,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:14:35,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-13 08:14:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:35,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:35,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:35,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:14:35,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 210 proven. 2 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-13 08:14:35,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248301406] [2020-10-13 08:14:35,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:35,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:14:35,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025322338] [2020-10-13 08:14:35,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:14:35,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:35,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:14:35,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:14:35,977 INFO L87 Difference]: Start difference. First operand 10702 states and 12398 transitions. Second operand 5 states. [2020-10-13 08:14:38,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:38,600 INFO L93 Difference]: Finished difference Result 22523 states and 26100 transitions. [2020-10-13 08:14:38,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:14:38,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 510 [2020-10-13 08:14:38,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:38,618 INFO L225 Difference]: With dead ends: 22523 [2020-10-13 08:14:38,618 INFO L226 Difference]: Without dead ends: 10873 [2020-10-13 08:14:38,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:14:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10873 states. [2020-10-13 08:14:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10873 to 10269. [2020-10-13 08:14:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10269 states. [2020-10-13 08:14:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10269 states to 10269 states and 11595 transitions. [2020-10-13 08:14:38,808 INFO L78 Accepts]: Start accepts. Automaton has 10269 states and 11595 transitions. Word has length 510 [2020-10-13 08:14:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:38,809 INFO L479 AbstractCegarLoop]: Abstraction has 10269 states and 11595 transitions. [2020-10-13 08:14:38,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:14:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 10269 states and 11595 transitions. [2020-10-13 08:14:38,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2020-10-13 08:14:38,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:38,817 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:38,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-13 08:14:38,817 INFO L427 AbstractCegarLoop]: === Iteration 35 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:38,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:38,817 INFO L82 PathProgramCache]: Analyzing trace with hash 349250143, now seen corresponding path program 1 times [2020-10-13 08:14:38,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:38,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164063590] [2020-10-13 08:14:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:38,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:39,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:40,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 534 [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3430 [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-13 08:14:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 08:14:42,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:42,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:42,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:42,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 08:14:42,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:42,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 08:14:42,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:42,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:42,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:42,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-13 08:14:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:42,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-13 08:14:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:42,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-13 08:14:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:42,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 08:14:42,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-13 08:14:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:42,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:42,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:42,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:42,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 369 proven. 82 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2020-10-13 08:14:43,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164063590] [2020-10-13 08:14:43,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:43,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:14:43,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704733599] [2020-10-13 08:14:43,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:14:43,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:43,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:14:43,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:14:43,230 INFO L87 Difference]: Start difference. First operand 10269 states and 11595 transitions. Second operand 8 states. [2020-10-13 08:14:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:47,117 INFO L93 Difference]: Finished difference Result 20772 states and 23451 transitions. [2020-10-13 08:14:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 08:14:47,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 518 [2020-10-13 08:14:47,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:47,136 INFO L225 Difference]: With dead ends: 20772 [2020-10-13 08:14:47,136 INFO L226 Difference]: Without dead ends: 10509 [2020-10-13 08:14:47,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-13 08:14:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10509 states. [2020-10-13 08:14:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10509 to 10081. [2020-10-13 08:14:47,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10081 states. [2020-10-13 08:14:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10081 states to 10081 states and 11190 transitions. [2020-10-13 08:14:47,255 INFO L78 Accepts]: Start accepts. Automaton has 10081 states and 11190 transitions. Word has length 518 [2020-10-13 08:14:47,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:47,255 INFO L479 AbstractCegarLoop]: Abstraction has 10081 states and 11190 transitions. [2020-10-13 08:14:47,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:14:47,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10081 states and 11190 transitions. [2020-10-13 08:14:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2020-10-13 08:14:47,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:47,263 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:47,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-13 08:14:47,263 INFO L427 AbstractCegarLoop]: === Iteration 36 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:47,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1430502662, now seen corresponding path program 1 times [2020-10-13 08:14:47,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:47,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824030435] [2020-10-13 08:14:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:47,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:47,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:49,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 549 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 362 [2020-10-13 08:14:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 08:14:52,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:52,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:14:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:52,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:52,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:14:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:52,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:52,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:52,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:14:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:52,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:52,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:14:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 08:14:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:52,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:14:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:14:52,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:14:52,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2020-10-13 08:14:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:52,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:52,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:14:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:14:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 08:14:52,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:14:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 536 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-13 08:14:53,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824030435] [2020-10-13 08:14:53,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:14:53,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 08:14:53,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587701236] [2020-10-13 08:14:53,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 08:14:53,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:14:53,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 08:14:53,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 08:14:53,055 INFO L87 Difference]: Start difference. First operand 10081 states and 11190 transitions. Second operand 7 states. [2020-10-13 08:14:55,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:14:55,770 INFO L93 Difference]: Finished difference Result 20749 states and 23019 transitions. [2020-10-13 08:14:55,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:14:55,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 533 [2020-10-13 08:14:55,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:14:55,785 INFO L225 Difference]: With dead ends: 20749 [2020-10-13 08:14:55,785 INFO L226 Difference]: Without dead ends: 10674 [2020-10-13 08:14:55,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 08:14:55,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2020-10-13 08:14:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 10269. [2020-10-13 08:14:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10269 states. [2020-10-13 08:14:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10269 states to 10269 states and 11370 transitions. [2020-10-13 08:14:55,909 INFO L78 Accepts]: Start accepts. Automaton has 10269 states and 11370 transitions. Word has length 533 [2020-10-13 08:14:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:14:55,909 INFO L479 AbstractCegarLoop]: Abstraction has 10269 states and 11370 transitions. [2020-10-13 08:14:55,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 08:14:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10269 states and 11370 transitions. [2020-10-13 08:14:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-10-13 08:14:55,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:14:55,917 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:14:55,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-13 08:14:55,917 INFO L427 AbstractCegarLoop]: === Iteration 37 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:14:55,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:14:55,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1269155375, now seen corresponding path program 1 times [2020-10-13 08:14:55,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:14:55,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544729625] [2020-10-13 08:14:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:14:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:14:56,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:56,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:56,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:58,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:14:59,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 550 [2020-10-13 08:15:01,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:15:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-13 08:15:01,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 08:15:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 361 [2020-10-13 08:15:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-13 08:15:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:15:01,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:15:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:15:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:15:01,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:15:01,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:15:01,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:15:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:15:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 08:15:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:15:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 08:15:01,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:15:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:15:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:15:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:15:01,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 08:15:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:15:01,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:15:01,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:15:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 08:15:01,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:15:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:15:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:15:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:15:01,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-13 08:15:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:15:01,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-13 08:15:01,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:15:01,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-13 08:15:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:15:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:15:01,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:15:01,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:15:01,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-13 08:15:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0