/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:28:39,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:28:39,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:28:39,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:28:39,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:28:39,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:28:39,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:28:39,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:28:39,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:28:39,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:28:39,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:28:39,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:28:39,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:28:39,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:28:39,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:28:39,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:28:39,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:28:39,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:28:39,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:28:39,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:28:39,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:28:39,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:28:39,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:28:39,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:28:39,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:28:39,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:28:39,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:28:39,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:28:39,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:28:39,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:28:39,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:28:39,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:28:39,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:28:39,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:28:39,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:28:39,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:28:39,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:28:39,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:28:39,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:28:39,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:28:39,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:28:39,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:28:39,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:28:39,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:28:39,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:28:39,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:28:39,786 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:28:39,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:28:39,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:28:39,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:28:39,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:28:39,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:28:39,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:28:39,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:28:39,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:28:39,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:28:39,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:28:39,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:28:39,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:28:39,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:28:39,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:28:39,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:28:39,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:28:39,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:28:39,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:28:39,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:28:39,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:28:39,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:28:39,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:28:39,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:28:39,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:28:39,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:28:40,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:28:40,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:28:40,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:28:40,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:28:40,295 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:28:40,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 05:28:40,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3822e55a4/79f6f7fa77d241449311b7354105900b/FLAG48c25fe5d [2020-09-25 05:28:40,916 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:28:40,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i25_o25-1.c [2020-09-25 05:28:40,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3822e55a4/79f6f7fa77d241449311b7354105900b/FLAG48c25fe5d [2020-09-25 05:28:41,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3822e55a4/79f6f7fa77d241449311b7354105900b [2020-09-25 05:28:41,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:28:41,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:28:41,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:28:41,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:28:41,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:28:41,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1dceb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41, skipping insertion in model container [2020-09-25 05:28:41,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:28:41,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:28:41,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:28:41,554 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:28:41,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:28:41,591 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:28:41,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41 WrapperNode [2020-09-25 05:28:41,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:28:41,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:28:41,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:28:41,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:28:41,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... [2020-09-25 05:28:41,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:28:41,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:28:41,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:28:41,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:28:41,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:28:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:28:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:28:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 05:28:41,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:28:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:28:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:28:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 05:28:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:28:41,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:28:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:28:41,998 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:28:41,998 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 05:28:42,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:28:42 BoogieIcfgContainer [2020-09-25 05:28:42,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:28:42,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:28:42,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:28:42,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:28:42,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:28:41" (1/3) ... [2020-09-25 05:28:42,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2858fe1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:28:42, skipping insertion in model container [2020-09-25 05:28:42,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:28:41" (2/3) ... [2020-09-25 05:28:42,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2858fe1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:28:42, skipping insertion in model container [2020-09-25 05:28:42,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:28:42" (3/3) ... [2020-09-25 05:28:42,020 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i25_o25-1.c [2020-09-25 05:28:42,036 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:28:42,049 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:28:42,077 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:28:42,125 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:28:42,126 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:28:42,126 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:28:42,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:28:42,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:28:42,127 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:28:42,127 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:28:42,127 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:28:42,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 05:28:42,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 05:28:42,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:42,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:42,161 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:42,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 05:28:42,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:42,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774971689] [2020-09-25 05:28:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:28:42,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 05:28:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:28:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:28:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:28:42,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:28:42,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:42,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:28:42,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:28:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:28:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:28:42,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774971689] [2020-09-25 05:28:42,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:28:42,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:28:42,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271754393] [2020-09-25 05:28:42,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:28:42,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:42,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:28:42,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:28:42,551 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 05:28:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:42,647 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 05:28:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:28:42,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 05:28:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:42,663 INFO L225 Difference]: With dead ends: 37 [2020-09-25 05:28:42,664 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 05:28:42,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:28:42,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 05:28:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 05:28:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 05:28:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 05:28:42,720 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 05:28:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:42,721 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 05:28:42,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:28:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 05:28:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 05:28:42,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:42,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:42,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:28:42,725 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:42,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 05:28:42,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:42,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915705331] [2020-09-25 05:28:42,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:42,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:42,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 05:28:42,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 05:28:42,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:42,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:28:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:42,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:28:42,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:28:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:43,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:28:43,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:43,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:43,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:28:43,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:43,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 05:28:43,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:28:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 05:28:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:28:43,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:43,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:28:43,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:43,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:43,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 05:28:43,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915705331] [2020-09-25 05:28:43,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:43,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 05:28:43,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523124647] [2020-09-25 05:28:43,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:28:43,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:43,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:28:43,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:28:43,294 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 05:28:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:43,369 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 05:28:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 05:28:43,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 05:28:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:43,372 INFO L225 Difference]: With dead ends: 34 [2020-09-25 05:28:43,372 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 05:28:43,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:28:43,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 05:28:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 05:28:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 05:28:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 05:28:43,382 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 05:28:43,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:43,383 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 05:28:43,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:28:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 05:28:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 05:28:43,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:43,385 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:43,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:28:43,385 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:43,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:43,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 05:28:43,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:43,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373897154] [2020-09-25 05:28:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 05:28:43,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 05:28:43,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:28:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 05:28:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:43,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:28:43,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:43,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 05:28:43,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:28:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:43,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 05:28:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:43,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:43,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 05:28:43,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:43,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:28:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:43,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:43,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 05:28:43,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:43,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:43,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:43,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:43,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:28:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 05:28:43,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373897154] [2020-09-25 05:28:43,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:43,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 05:28:43,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537826107] [2020-09-25 05:28:43,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:28:43,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:43,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:28:43,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:28:43,968 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 05:28:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:44,070 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 05:28:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:28:44,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 05:28:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:44,073 INFO L225 Difference]: With dead ends: 39 [2020-09-25 05:28:44,073 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 05:28:44,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:28:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 05:28:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 05:28:44,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 05:28:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 05:28:44,090 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 05:28:44,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:44,090 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 05:28:44,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:28:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 05:28:44,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 05:28:44,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:44,096 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:44,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:28:44,097 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:44,097 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 05:28:44,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:44,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369898722] [2020-09-25 05:28:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 05:28:44,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 05:28:44,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:28:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:44,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:28:44,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:44,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:44,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:44,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 05:28:44,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 05:28:44,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:44,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 05:28:44,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:44,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 05:28:44,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 05:28:44,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:44,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:44,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:44,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:44,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:44,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:44,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:28:44,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:44,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:44,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 05:28:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 05:28:44,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369898722] [2020-09-25 05:28:44,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:44,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 05:28:44,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095928956] [2020-09-25 05:28:44,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:28:44,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:44,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:28:44,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:28:44,816 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 05:28:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:44,930 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 05:28:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 05:28:44,930 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 05:28:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:44,933 INFO L225 Difference]: With dead ends: 44 [2020-09-25 05:28:44,933 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 05:28:44,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 05:28:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 05:28:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 05:28:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 05:28:44,949 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 05:28:44,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:44,950 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 05:28:44,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:28:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 05:28:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 05:28:44,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:44,954 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:44,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:28:44,954 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:44,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 05:28:44,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:44,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679649507] [2020-09-25 05:28:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 05:28:45,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 05:28:45,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:28:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:28:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:45,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:45,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:45,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:45,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 05:28:45,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 05:28:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:45,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 05:28:45,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:45,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 05:28:45,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:45,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 05:28:45,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:45,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:45,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 05:28:45,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:45,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:45,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:45,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:45,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:28:45,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:45,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:45,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:45,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 05:28:45,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679649507] [2020-09-25 05:28:45,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:45,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 05:28:45,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894315320] [2020-09-25 05:28:45,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:28:45,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:45,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:28:45,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:28:45,901 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 05:28:45,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:45,997 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 05:28:45,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:28:45,998 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 05:28:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:46,000 INFO L225 Difference]: With dead ends: 49 [2020-09-25 05:28:46,000 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 05:28:46,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:46,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 05:28:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 05:28:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 05:28:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 05:28:46,009 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 05:28:46,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:46,009 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 05:28:46,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:28:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 05:28:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 05:28:46,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:46,011 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:46,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:28:46,011 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:46,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:46,012 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 05:28:46,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:46,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703066633] [2020-09-25 05:28:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 05:28:46,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-09-25 05:28:46,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:28:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:28:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:46,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:46,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:46,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:46,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:46,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 05:28:46,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:28:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:46,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 05:28:46,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:46,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:46,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 05:28:46,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:46,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:46,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:46,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 05:28:46,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:46,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:46,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:47,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 05:28:47,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-09-25 05:28:47,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:47,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 05:28:47,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:47,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:28:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 05:28:47,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703066633] [2020-09-25 05:28:47,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:47,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 05:28:47,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599884826] [2020-09-25 05:28:47,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 05:28:47,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:47,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 05:28:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:28:47,314 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 05:28:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:47,444 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 05:28:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:28:47,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 05:28:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:47,447 INFO L225 Difference]: With dead ends: 54 [2020-09-25 05:28:47,447 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 05:28:47,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:28:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 05:28:47,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 05:28:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 05:28:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 05:28:47,461 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 05:28:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:47,462 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 05:28:47,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 05:28:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 05:28:47,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 05:28:47,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:47,465 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:47,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:28:47,465 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:47,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 05:28:47,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:47,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607275486] [2020-09-25 05:28:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:28:47,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 05:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:47,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 05:28:47,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:47,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:47,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:47,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:47,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:47,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:47,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:47,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:47,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:47,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:47,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:48,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-25 05:28:48,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 05:28:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:48,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 05:28:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:48,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 05:28:48,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:48,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:48,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:48,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 05:28:48,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:48,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:49,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 05:28:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:49,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:28:49,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:49,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:49,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:49,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:28:49,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:49,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 05:28:49,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607275486] [2020-09-25 05:28:49,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:49,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:28:49,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735268416] [2020-09-25 05:28:49,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:28:49,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:49,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:28:49,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:49,225 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 05:28:49,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:49,412 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 05:28:49,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:28:49,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 05:28:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:49,416 INFO L225 Difference]: With dead ends: 59 [2020-09-25 05:28:49,419 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 05:28:49,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:28:49,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 05:28:49,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 05:28:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 05:28:49,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 05:28:49,433 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 05:28:49,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:49,433 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 05:28:49,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:28:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 05:28:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 05:28:49,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:49,437 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:49,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:28:49,437 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:49,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 05:28:49,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:49,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215775182] [2020-09-25 05:28:49,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 05:28:49,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-25 05:28:49,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 05:28:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 05:28:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:49,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:49,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:49,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:49,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:49,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:49,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:49,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:49,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:50,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:50,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:50,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 05:28:50,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:50,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 05:28:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:50,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 05:28:50,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:50,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:50,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:50,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:50,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-09-25 05:28:50,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:50,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:50,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:50,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:50,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:50,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:51,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 05:28:51,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:51,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:51,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-09-25 05:28:51,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:51,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:51,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 05:28:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:51,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:28:51,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:51,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 05:28:51,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:51,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:51,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:51,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:51,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:51,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:51,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:51,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:28:51,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:51,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:51,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:51,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 05:28:51,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215775182] [2020-09-25 05:28:51,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:51,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 05:28:51,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752247986] [2020-09-25 05:28:51,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 05:28:51,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 05:28:51,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 05:28:51,735 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 05:28:51,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:51,938 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 05:28:51,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 05:28:51,940 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 05:28:51,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:51,947 INFO L225 Difference]: With dead ends: 64 [2020-09-25 05:28:51,947 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 05:28:51,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 05:28:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 05:28:51,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 05:28:51,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 05:28:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 05:28:51,960 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 05:28:51,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:51,960 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 05:28:51,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 05:28:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 05:28:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 05:28:51,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:51,967 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:51,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:28:51,968 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:51,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:51,969 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 05:28:51,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:51,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223112352] [2020-09-25 05:28:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:52,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:52,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 05:28:52,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 524 [2020-09-25 05:28:52,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:52,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:52,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 05:28:52,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 05:28:52,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:52,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:52,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:52,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:52,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:52,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:52,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:52,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:52,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:53,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:28:53,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 05:28:53,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:53,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 05:28:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 05:28:53,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:53,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:53,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:53,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:53,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:53,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:53,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-25 05:28:53,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:53,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:28:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:53,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:28:53,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:53,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:53,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:53,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:53,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:53,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:53,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 05:28:53,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:53,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:53,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:53,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:53,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:53,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:54,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 05:28:54,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:54,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:54,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:54,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 05:28:54,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:54,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:54,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:54,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:54,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 05:28:54,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:54,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:54,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:54,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:28:54,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:54,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 05:28:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:54,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:54,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:54,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:54,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:54,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:28:54,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:54,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:54,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:54,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 05:28:54,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223112352] [2020-09-25 05:28:54,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:54,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:28:54,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103681721] [2020-09-25 05:28:54,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:28:54,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:54,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:28:54,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:54,937 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 05:28:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:55,102 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 05:28:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:28:55,102 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 05:28:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:55,104 INFO L225 Difference]: With dead ends: 69 [2020-09-25 05:28:55,104 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 05:28:55,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 05:28:55,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 05:28:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 05:28:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 05:28:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 05:28:55,114 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 05:28:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:55,114 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 05:28:55,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:28:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 05:28:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 05:28:55,115 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:55,116 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:55,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:28:55,116 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:55,116 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 05:28:55,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:55,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528500664] [2020-09-25 05:28:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 05:28:55,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-09-25 05:28:55,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 05:28:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 05:28:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:55,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:55,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:55,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:55,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:55,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:55,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:55,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:55,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:55,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:55,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:56,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:56,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:28:56,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:28:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 05:28:56,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:28:56,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:56,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:56,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:56,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:28:56,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-09-25 05:28:56,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:56,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:28:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:28:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:56,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:57,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:57,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:28:57,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:57,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-09-25 05:28:57,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:57,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:28:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:28:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:57,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:57,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:57,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:28:57,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:57,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 05:28:57,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:57,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:57,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:28:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:28:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:28:57,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:57,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:28:58,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 05:28:58,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:28:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:28:58,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:28:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 05:28:58,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:28:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:28:58,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:28:58,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 05:28:58,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:28:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:28:58,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:28:58,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:28:58,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:28:58,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:28:58,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:28:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 05:28:58,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:28:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:28:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:28:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:58,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:58,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:28:58,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:58,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:28:58,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:58,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:28:58,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:28:58,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 05:28:58,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528500664] [2020-09-25 05:28:58,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:28:58,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 05:28:58,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548326527] [2020-09-25 05:28:58,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 05:28:58,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:28:58,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 05:28:58,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 05:28:58,664 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 05:28:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:28:58,833 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 05:28:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 05:28:58,834 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 05:28:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:28:58,835 INFO L225 Difference]: With dead ends: 74 [2020-09-25 05:28:58,836 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 05:28:58,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 05:28:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 05:28:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 05:28:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 05:28:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 05:28:58,843 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 05:28:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:28:58,844 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 05:28:58,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 05:28:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 05:28:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 05:28:58,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:28:58,845 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:28:58,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:28:58,846 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:28:58,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:28:58,846 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 05:28:58,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:28:58,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [916428881] [2020-09-25 05:28:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:28:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:58,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 05:28:59,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-09-25 05:28:59,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 05:28:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:28:59,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 05:28:59,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:59,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:28:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:28:59,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:28:59,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:28:59,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:28:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:28:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:28:59,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:28:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:28:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:28:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:28:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:28:59,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:28:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:28:59,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:00,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:00,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:00,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:00,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-09-25 05:29:00,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:00,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 05:29:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 05:29:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:00,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:01,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:01,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:01,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:01,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 592 [2020-09-25 05:29:01,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:01,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:01,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:01,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:01,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:01,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:01,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:01,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:01,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:01,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:01,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 05:29:01,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:01,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:01,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:02,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:02,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:02,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:02,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 05:29:02,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:02,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:02,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:02,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:02,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:02,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:02,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:02,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:02,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 05:29:02,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:02,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:02,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:02,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:02,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:02,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:02,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:02,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:02,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 05:29:02,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:02,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:02,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:03,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:03,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:03,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:03,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 05:29:03,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:03,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:03,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:03,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:03,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:03,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:03,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:03,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:03,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:03,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 05:29:03,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:03,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:03,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:03,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:03,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:29:03,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:03,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:03,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:03,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:03,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 05:29:03,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:03,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:03,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:03,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:03,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:03,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:03,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:03,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:29:03,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:03,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:03,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:03,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:03,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 05:29:03,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [916428881] [2020-09-25 05:29:03,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:03,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 05:29:03,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674178723] [2020-09-25 05:29:03,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 05:29:03,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:03,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 05:29:03,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 05:29:03,423 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 05:29:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:03,674 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 05:29:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:29:03,675 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 05:29:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:03,677 INFO L225 Difference]: With dead ends: 79 [2020-09-25 05:29:03,677 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 05:29:03,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 05:29:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 05:29:03,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 05:29:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 05:29:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 05:29:03,703 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 05:29:03,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:03,704 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 05:29:03,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 05:29:03,705 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 05:29:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 05:29:03,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:03,707 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:03,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:29:03,707 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:03,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 05:29:03,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:03,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461072498] [2020-09-25 05:29:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:03,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:04,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:04,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 05:29:04,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:04,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-09-25 05:29:04,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:04,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:04,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 05:29:04,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:04,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:04,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:04,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:04,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:29:04,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:04,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:04,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:04,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:05,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:05,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 05:29:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-09-25 05:29:05,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:05,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 05:29:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 05:29:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:05,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:05,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:06,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 05:29:06,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 05:29:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:29:06,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:06,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:06,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:06,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:06,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:06,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-09-25 05:29:06,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:06,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:06,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:07,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:07,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:07,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 05:29:07,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:07,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:07,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:07,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:07,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:07,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:07,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:07,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:07,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:07,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:08,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 05:29:08,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:08,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 05:29:08,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:08,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:08,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 05:29:08,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:08,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:08,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 05:29:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:08,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 05:29:08,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:08,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 05:29:08,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:08,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:08,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:08,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:08,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:08,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:29:08,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:08,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:08,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 05:29:08,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461072498] [2020-09-25 05:29:08,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:08,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 05:29:08,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339675214] [2020-09-25 05:29:08,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 05:29:08,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:08,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 05:29:08,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 05:29:08,969 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 05:29:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:09,152 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 05:29:09,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 05:29:09,152 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 05:29:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:09,154 INFO L225 Difference]: With dead ends: 84 [2020-09-25 05:29:09,154 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 05:29:09,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 05:29:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 05:29:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 05:29:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 05:29:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 05:29:09,167 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 05:29:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:09,167 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 05:29:09,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 05:29:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 05:29:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 05:29:09,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:09,169 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:09,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:29:09,170 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:09,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:09,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 05:29:09,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:09,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449059497] [2020-09-25 05:29:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:10,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:10,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 05:29:10,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:10,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-25 05:29:10,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:10,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 05:29:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:10,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 05:29:10,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:10,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:10,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:10,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:10,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:10,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:29:10,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:10,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:10,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:10,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:10,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:10,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:10,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:10,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:10,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:10,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 05:29:10,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:10,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-09-25 05:29:10,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:10,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:10,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 05:29:10,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:10,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 05:29:10,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:10,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:10,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:11,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 05:29:11,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:11,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 05:29:11,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:11,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:11,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:12,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:12,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:12,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:12,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:29:12,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:12,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:12,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:12,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:12,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:12,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:12,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:13,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:13,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:13,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:13,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:13,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:13,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:13,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-25 05:29:13,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:13,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:13,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:13,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:13,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:13,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:13,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:13,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 05:29:13,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:13,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:13,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:13,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:14,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 05:29:14,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:14,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:14,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:14,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 05:29:14,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:14,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:14,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:14,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 05:29:14,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:14,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:14,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:14,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:14,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:14,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 05:29:14,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:14,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:14,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:14,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 05:29:14,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:14,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:14,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:29:14,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:14,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:14,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:14,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:14,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:14,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:29:14,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:14,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:29:14,876 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 05:29:14,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449059497] [2020-09-25 05:29:14,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:14,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 05:29:14,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872998463] [2020-09-25 05:29:14,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 05:29:14,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:14,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 05:29:14,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 05:29:14,879 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 05:29:15,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:15,065 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 05:29:15,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 05:29:15,065 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 05:29:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:15,067 INFO L225 Difference]: With dead ends: 89 [2020-09-25 05:29:15,067 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 05:29:15,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 05:29:15,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 05:29:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 05:29:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 05:29:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 05:29:15,074 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 05:29:15,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:15,074 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 05:29:15,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 05:29:15,075 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 05:29:15,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 05:29:15,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:15,076 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:15,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 05:29:15,076 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:15,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:15,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 05:29:15,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:15,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657222410] [2020-09-25 05:29:15,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:15,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:16,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:16,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 05:29:16,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:16,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 930 [2020-09-25 05:29:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:16,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 05:29:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 05:29:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:16,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:16,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:16,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:16,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:16,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:16,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:29:16,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:16,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:16,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:16,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:16,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 849 [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:16,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 05:29:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 05:29:16,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:16,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:16,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:17,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:17,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 05:29:17,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:17,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-09-25 05:29:17,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:17,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 05:29:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 05:29:17,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:17,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 666 [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:18,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 05:29:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 05:29:18,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:18,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:18,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:19,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:19,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:19,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:29:19,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:19,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:19,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:19,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:19,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:19,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:19,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:20,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:20,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:20,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:20,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-25 05:29:20,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:20,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:20,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:20,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:20,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:20,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:20,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:20,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:20,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:20,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:20,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:20,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:20,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:20,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:21,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 05:29:21,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:21,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:21,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:21,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 05:29:21,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:21,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:21,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:21,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:21,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 05:29:21,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:21,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:21,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:29:21,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:21,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:21,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 05:29:21,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:21,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:21,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:21,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:21,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:21,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:29:21,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:21,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:21,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:21,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 05:29:21,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657222410] [2020-09-25 05:29:21,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:21,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 05:29:21,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597588384] [2020-09-25 05:29:21,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 05:29:21,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:21,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 05:29:21,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:29:21,690 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 05:29:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:21,945 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 05:29:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:29:21,945 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 05:29:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:21,947 INFO L225 Difference]: With dead ends: 94 [2020-09-25 05:29:21,947 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 05:29:21,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 05:29:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 05:29:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 05:29:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 05:29:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 05:29:21,957 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 05:29:21,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:21,958 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 05:29:21,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 05:29:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 05:29:21,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 05:29:21,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:21,961 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:21,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 05:29:21,961 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:21,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:21,962 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 05:29:21,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:21,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348106195] [2020-09-25 05:29:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:21,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:22,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:22,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 05:29:22,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 969 [2020-09-25 05:29:22,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:22,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 05:29:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:22,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 05:29:22,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:22,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:22,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:22,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:29:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:22,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:22,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:23,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:23,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 05:29:23,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:23,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 05:29:23,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:24,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:24,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:24,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 05:29:24,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:24,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:25,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:25,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 05:29:25,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 793 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 05:29:25,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:25,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:25,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:26,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:26,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 05:29:26,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-09-25 05:29:26,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:26,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 05:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 05:29:26,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:26,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:27,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 05:29:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:27,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 05:29:27,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:27,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:27,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:27,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 05:29:27,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:27,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 476 [2020-09-25 05:29:27,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:27,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 05:29:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:27,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 05:29:27,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:27,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:27,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:27,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:27,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 05:29:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:27,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 05:29:27,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:27,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:27,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:28,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 05:29:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:28,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:29:28,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:28,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:28,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 05:29:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 05:29:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:28,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:28,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:28,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:28,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 05:29:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 05:29:28,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:28,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:28,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 05:29:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 05:29:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:28,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:29,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:29,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 05:29:29,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:29,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 05:29:29,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:29,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:29,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 05:29:29,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:29:29,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:29,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:29,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:29,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 05:29:29,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 05:29:29,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:29,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 05:29:29,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:29:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:29,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:29,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:29,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 05:29:29,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:29,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 05:29:29,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:29,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:29:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:29,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 05:29:29,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:29,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:29,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:29,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:29:29,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:29,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:29:29,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:29,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:29:29,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:29,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:29:29,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:29:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 05:29:29,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348106195] [2020-09-25 05:29:29,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:29:29,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 05:29:29,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366461457] [2020-09-25 05:29:29,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 05:29:29,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:29:29,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 05:29:29,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:29:29,299 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 05:29:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:29:29,573 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 05:29:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:29:29,573 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 05:29:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:29:29,574 INFO L225 Difference]: With dead ends: 99 [2020-09-25 05:29:29,574 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 05:29:29,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 05:29:29,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 05:29:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 05:29:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 05:29:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 05:29:29,583 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 05:29:29,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:29:29,583 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 05:29:29,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 05:29:29,583 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 05:29:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 05:29:29,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:29:29,587 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:29:29,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 05:29:29,587 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:29:29,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:29:29,588 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 05:29:29,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:29:29,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454680992] [2020-09-25 05:29:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:29:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:30,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:30,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 05:29:30,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 05:29:30,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:29:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:30,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:29:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:29:30,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:30,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 05:29:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:30,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:31,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 05:29:31,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1090 [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:29:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 05:29:31,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:31,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:31,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:32,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 05:29:32,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:32,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-25 05:29:32,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:32,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:32,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:29:33,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:29:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 05:29:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:29:33,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 05:29:33,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:29:33,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:29:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:29:33,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking...