/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_25x0-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:06:58,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:06:58,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:06:58,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:06:58,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:06:58,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:06:58,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:06:58,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:06:58,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:06:58,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:06:58,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:06:58,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:06:58,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:06:58,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:06:58,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:06:58,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:06:58,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:06:58,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:06:58,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:06:58,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:06:58,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:06:58,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:06:58,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:06:58,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:06:58,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:06:58,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:06:58,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:06:58,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:06:58,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:06:58,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:06:58,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:06:58,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:06:58,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:06:58,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:06:58,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:06:58,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:06:58,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:06:58,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:06:58,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:06:58,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:06:58,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:06:58,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 13:06:58,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:06:58,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:06:58,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:06:58,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:06:58,775 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:06:58,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:06:58,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:06:58,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:06:58,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:06:58,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:06:58,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:06:58,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:06:58,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:06:58,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:06:58,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:06:58,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:06:58,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:06:58,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:06:58,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:06:58,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:06:58,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:06:58,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:06:58,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:06:58,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:06:58,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:06:59,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:06:59,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:06:59,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:06:59,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:06:59,118 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:06:59,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_25x0-2.c [2020-10-13 13:06:59,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57c14301c/c9b1cc8d2fe4439687e085b63a82889c/FLAGe32f6a9ac [2020-10-13 13:06:59,649 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:06:59,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_25x0-2.c [2020-10-13 13:06:59,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57c14301c/c9b1cc8d2fe4439687e085b63a82889c/FLAGe32f6a9ac [2020-10-13 13:07:00,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57c14301c/c9b1cc8d2fe4439687e085b63a82889c [2020-10-13 13:07:00,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:07:00,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:07:00,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:07:00,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:07:00,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:07:00,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f7a528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00, skipping insertion in model container [2020-10-13 13:07:00,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:07:00,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:07:00,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:07:00,244 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:07:00,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:07:00,282 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:07:00,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00 WrapperNode [2020-10-13 13:07:00,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:07:00,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:07:00,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:07:00,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:07:00,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... [2020-10-13 13:07:00,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:07:00,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:07:00,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:07:00,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:07:00,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:07:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:07:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:07:00,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-13 13:07:00,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:07:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:07:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-13 13:07:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:07:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:07:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:07:00,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:07:00,636 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 13:07:00,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:07:00 BoogieIcfgContainer [2020-10-13 13:07:00,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:07:00,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:07:00,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:07:00,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:07:00,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:07:00" (1/3) ... [2020-10-13 13:07:00,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d6606f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:07:00, skipping insertion in model container [2020-10-13 13:07:00,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:07:00" (2/3) ... [2020-10-13 13:07:00,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d6606f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:07:00, skipping insertion in model container [2020-10-13 13:07:00,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:07:00" (3/3) ... [2020-10-13 13:07:00,670 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_25x0-2.c [2020-10-13 13:07:00,688 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:07:00,698 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:07:00,729 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:07:00,754 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:07:00,754 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:07:00,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:07:00,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:07:00,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:07:00,755 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:07:00,755 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:07:00,755 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:07:00,775 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-13 13:07:00,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 13:07:00,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:00,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:00,785 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:00,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:00,796 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-13 13:07:00,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:00,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437580231] [2020-10-13 13:07:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:00,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 13:07:01,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-13 13:07:01,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:07:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:01,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:07:01,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:07:01,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:01,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:07:01,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:01,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:01,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:07:01,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:07:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:07:01,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:07:01,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437580231] [2020-10-13 13:07:01,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:07:01,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 13:07:01,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811002359] [2020-10-13 13:07:01,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 13:07:01,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:01,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 13:07:01,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 13:07:01,225 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-13 13:07:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:01,311 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-13 13:07:01,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 13:07:01,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 13:07:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:01,324 INFO L225 Difference]: With dead ends: 30 [2020-10-13 13:07:01,325 INFO L226 Difference]: Without dead ends: 18 [2020-10-13 13:07:01,329 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 [2020-10-13 13:07:01,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-13 13:07:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-13 13:07:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-13 13:07:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-13 13:07:01,378 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-13 13:07:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:01,379 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-13 13:07:01,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 13:07:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-13 13:07:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-13 13:07:01,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:01,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:01,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:07:01,382 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:01,383 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-13 13:07:01,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:01,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951055295] [2020-10-13 13:07:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 13:07:01,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-13 13:07:01,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:07:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:07:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:01,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:07:01,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:01,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:01,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:01,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-13 13:07:01,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:07:01,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:01,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:07:01,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:01,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:01,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:07:01,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:01,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:01,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 13:07:01,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951055295] [2020-10-13 13:07:01,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:01,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 13:07:01,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799402059] [2020-10-13 13:07:01,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 13:07:01,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:01,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 13:07:01,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 13:07:01,754 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2020-10-13 13:07:01,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:01,820 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-13 13:07:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 13:07:01,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-13 13:07:01,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:01,822 INFO L225 Difference]: With dead ends: 25 [2020-10-13 13:07:01,822 INFO L226 Difference]: Without dead ends: 21 [2020-10-13 13:07:01,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:07:01,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-13 13:07:01,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-13 13:07:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-13 13:07:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-13 13:07:01,831 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-13 13:07:01,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:01,831 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-13 13:07:01,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 13:07:01,832 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-13 13:07:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-13 13:07:01,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:01,833 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:01,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:07:01,834 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:01,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:01,834 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2020-10-13 13:07:01,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:01,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639083167] [2020-10-13 13:07:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:01,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 13:07:02,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-13 13:07:02,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:07:02,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:07:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:07:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:02,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:07:02,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:02,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:02,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 13:07:02,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 13:07:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:07:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:02,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:07:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:02,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:07:02,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 13:07:02,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639083167] [2020-10-13 13:07:02,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:02,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 13:07:02,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175974168] [2020-10-13 13:07:02,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:07:02,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:07:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:07:02,278 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-10-13 13:07:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:02,363 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-13 13:07:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 13:07:02,364 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-13 13:07:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:02,365 INFO L225 Difference]: With dead ends: 28 [2020-10-13 13:07:02,365 INFO L226 Difference]: Without dead ends: 24 [2020-10-13 13:07:02,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:07:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-13 13:07:02,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-13 13:07:02,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-13 13:07:02,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-13 13:07:02,373 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-13 13:07:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:02,373 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-13 13:07:02,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:07:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-13 13:07:02,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 13:07:02,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:02,375 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:02,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:07:02,376 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:02,377 INFO L82 PathProgramCache]: Analyzing trace with hash 601942852, now seen corresponding path program 3 times [2020-10-13 13:07:02,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:02,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105303835] [2020-10-13 13:07:02,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 13:07:02,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 13:07:02,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:07:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:02,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:07:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:02,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:02,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:02,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 13:07:02,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:07:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:02,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 13:07:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:02,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:02,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 13:07:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:02,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:02,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:07:02,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:02,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:02,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:02,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:02,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:02,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:02,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:07:02,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:02,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:02,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:02,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:02,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 13:07:02,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105303835] [2020-10-13 13:07:02,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:02,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 13:07:02,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236582448] [2020-10-13 13:07:02,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:07:02,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:02,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:07:02,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:07:02,886 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 9 states. [2020-10-13 13:07:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:02,968 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-13 13:07:02,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:07:02,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2020-10-13 13:07:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:02,970 INFO L225 Difference]: With dead ends: 31 [2020-10-13 13:07:02,970 INFO L226 Difference]: Without dead ends: 27 [2020-10-13 13:07:02,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:07:02,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-13 13:07:02,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-13 13:07:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-13 13:07:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-13 13:07:02,978 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-13 13:07:02,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:02,979 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-13 13:07:02,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:07:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-13 13:07:02,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 13:07:02,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:02,981 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:02,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:07:02,981 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:02,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:02,982 INFO L82 PathProgramCache]: Analyzing trace with hash -183109604, now seen corresponding path program 4 times [2020-10-13 13:07:02,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:02,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748613123] [2020-10-13 13:07:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:02,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-13 13:07:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 13:07:03,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:07:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 13:07:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:03,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:03,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:03,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 13:07:03,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:07:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 13:07:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:03,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:03,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 13:07:03,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:03,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:03,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:03,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:03,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 13:07:03,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:03,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:07:03,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:03,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:03,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:03,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:03,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:03,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:03,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:03,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 13:07:03,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748613123] [2020-10-13 13:07:03,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:03,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 13:07:03,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120444351] [2020-10-13 13:07:03,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:07:03,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:03,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:07:03,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:07:03,775 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-10-13 13:07:03,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:03,881 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-13 13:07:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 13:07:03,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-13 13:07:03,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:03,883 INFO L225 Difference]: With dead ends: 34 [2020-10-13 13:07:03,883 INFO L226 Difference]: Without dead ends: 30 [2020-10-13 13:07:03,883 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 [2020-10-13 13:07:03,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-13 13:07:03,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-13 13:07:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-13 13:07:03,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-13 13:07:03,890 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-13 13:07:03,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:03,891 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-13 13:07:03,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 13:07:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-13 13:07:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-13 13:07:03,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:03,893 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:03,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:07:03,893 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:03,894 INFO L82 PathProgramCache]: Analyzing trace with hash -155447420, now seen corresponding path program 5 times [2020-10-13 13:07:03,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:03,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923637931] [2020-10-13 13:07:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:03,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 13:07:04,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 13:07:04,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 13:07:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:04,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:04,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:04,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:04,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:04,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:04,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:04,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:04,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:04,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-13 13:07:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 13:07:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:07:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:04,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:04,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-13 13:07:04,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:04,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 13:07:04,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:04,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:04,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:04,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 13:07:04,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:04,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:04,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:04,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:07:04,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:04,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:04,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:04,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:04,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:07:04,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-13 13:07:04,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923637931] [2020-10-13 13:07:04,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:04,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:07:04,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218622108] [2020-10-13 13:07:04,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:07:04,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:07:04,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:07:04,902 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 12 states. [2020-10-13 13:07:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:05,086 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-13 13:07:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 13:07:05,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2020-10-13 13:07:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:05,089 INFO L225 Difference]: With dead ends: 37 [2020-10-13 13:07:05,089 INFO L226 Difference]: Without dead ends: 33 [2020-10-13 13:07:05,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:07:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-13 13:07:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-13 13:07:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 13:07:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-13 13:07:05,109 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-13 13:07:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:05,110 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-13 13:07:05,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:07:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-13 13:07:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 13:07:05,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:05,116 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:05,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:07:05,116 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:05,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:05,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1716183644, now seen corresponding path program 6 times [2020-10-13 13:07:05,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:05,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589554055] [2020-10-13 13:07:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 13:07:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-13 13:07:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:07:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 13:07:05,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:05,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:05,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:05,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:05,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:05,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:05,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:05,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-13 13:07:05,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:07:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:05,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 13:07:05,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:05,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:05,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:05,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:05,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:05,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-13 13:07:05,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:05,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:06,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 13:07:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:06,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:06,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 13:07:06,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:06,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:06,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 13:07:06,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:06,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:06,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:07:06,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:06,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:06,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:06,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:06,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:06,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:06,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:07:06,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:06,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:06,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-13 13:07:06,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589554055] [2020-10-13 13:07:06,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:06,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 13:07:06,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738942168] [2020-10-13 13:07:06,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:07:06,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:06,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:07:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:07:06,507 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 12 states. [2020-10-13 13:07:06,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:06,643 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-13 13:07:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 13:07:06,643 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 49 [2020-10-13 13:07:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:06,645 INFO L225 Difference]: With dead ends: 40 [2020-10-13 13:07:06,645 INFO L226 Difference]: Without dead ends: 36 [2020-10-13 13:07:06,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:07:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-13 13:07:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-13 13:07:06,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-13 13:07:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-13 13:07:06,662 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-13 13:07:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:06,662 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-13 13:07:06,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:07:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-13 13:07:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 13:07:06,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:06,667 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:06,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:07:06,667 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:06,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1079602236, now seen corresponding path program 7 times [2020-10-13 13:07:06,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:06,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121536745] [2020-10-13 13:07:06,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 13:07:07,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-13 13:07:07,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 13:07:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:07,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 13:07:07,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:07,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:07,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:07,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:07,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:07,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-13 13:07:07,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 13:07:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:07,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:07:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:07,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:07,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-13 13:07:07,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:07,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:07,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:07,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:07,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:07,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 13:07:07,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:07,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:07,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:07,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:08,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 13:07:08,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:08,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 13:07:08,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:08,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:08,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:08,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:08,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:07:08,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:08,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:08,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:08,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:07:08,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:08,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:08,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:08,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-13 13:07:08,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121536745] [2020-10-13 13:07:08,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:08,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 13:07:08,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507808204] [2020-10-13 13:07:08,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 13:07:08,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:08,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 13:07:08,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:07:08,394 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 13 states. [2020-10-13 13:07:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:08,552 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-13 13:07:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 13:07:08,553 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-10-13 13:07:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:08,555 INFO L225 Difference]: With dead ends: 43 [2020-10-13 13:07:08,555 INFO L226 Difference]: Without dead ends: 39 [2020-10-13 13:07:08,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:07:08,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-13 13:07:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-13 13:07:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-13 13:07:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-13 13:07:08,567 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-13 13:07:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:08,568 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-13 13:07:08,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 13:07:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-13 13:07:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 13:07:08,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:08,571 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:08,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:07:08,573 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:08,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1035381916, now seen corresponding path program 8 times [2020-10-13 13:07:08,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:08,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993571626] [2020-10-13 13:07:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 13:07:08,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-13 13:07:08,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:07:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:08,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 13:07:08,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:08,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:08,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:08,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:08,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:08,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:08,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:09,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-13 13:07:09,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-13 13:07:09,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:09,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-13 13:07:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:09,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:09,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-13 13:07:09,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:09,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-13 13:07:09,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:09,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:09,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 13:07:09,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:09,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:09,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:09,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:09,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:09,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 13:07:09,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:10,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:07:10,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:10,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:10,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:10,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 13:07:10,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:10,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:10,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:10,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:07:10,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:10,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:10,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:07:10,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:10,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:10,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 12 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-13 13:07:10,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993571626] [2020-10-13 13:07:10,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:10,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 13:07:10,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551621298] [2020-10-13 13:07:10,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:07:10,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:10,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:07:10,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:07:10,261 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 14 states. [2020-10-13 13:07:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:10,473 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-13 13:07:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 13:07:10,474 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2020-10-13 13:07:10,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:10,475 INFO L225 Difference]: With dead ends: 46 [2020-10-13 13:07:10,475 INFO L226 Difference]: Without dead ends: 42 [2020-10-13 13:07:10,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:07:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-13 13:07:10,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-13 13:07:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-13 13:07:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-13 13:07:10,490 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-13 13:07:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:10,492 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-13 13:07:10,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:07:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-13 13:07:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:07:10,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:10,496 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:10,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:07:10,496 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:10,497 INFO L82 PathProgramCache]: Analyzing trace with hash 952137732, now seen corresponding path program 9 times [2020-10-13 13:07:10,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:10,498 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379197948] [2020-10-13 13:07:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 13:07:10,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-10-13 13:07:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:07:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 13:07:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:10,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:10,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:10,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:10,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:10,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:10,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:10,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:10,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:10,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:11,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:11,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:11,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:11,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321 [2020-10-13 13:07:11,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:11,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 13:07:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:11,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:07:11,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:11,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:11,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:11,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:11,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:11,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-13 13:07:11,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:11,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:11,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:11,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:11,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:11,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:11,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:11,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:11,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:11,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-13 13:07:11,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:11,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:11,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:11,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:11,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:11,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-13 13:07:12,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:12,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 13:07:12,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:12,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 13:07:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:12,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:12,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:07:12,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:12,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:07:12,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:12,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:12,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:07:12,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:12,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:12,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:12,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:12,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:07:12,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 11 proven. 150 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-13 13:07:12,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379197948] [2020-10-13 13:07:12,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:12,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 13:07:12,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647952490] [2020-10-13 13:07:12,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:07:12,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:12,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:07:12,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:07:12,576 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 15 states. [2020-10-13 13:07:12,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:12,733 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-13 13:07:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:07:12,734 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 67 [2020-10-13 13:07:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:12,735 INFO L225 Difference]: With dead ends: 49 [2020-10-13 13:07:12,735 INFO L226 Difference]: Without dead ends: 45 [2020-10-13 13:07:12,736 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 [2020-10-13 13:07:12,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-13 13:07:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-13 13:07:12,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 13:07:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-13 13:07:12,742 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-13 13:07:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:12,742 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-13 13:07:12,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:07:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-13 13:07:12,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-13 13:07:12,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:12,744 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:12,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:07:12,744 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:12,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:12,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1540970204, now seen corresponding path program 10 times [2020-10-13 13:07:12,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:12,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547635277] [2020-10-13 13:07:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:12,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:13,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 13:07:13,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:13,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-13 13:07:13,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 13:07:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:07:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:13,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:13,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:13,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:13,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:13,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:13,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:13,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:13,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:13,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:13,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:13,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:13,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:13,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:13,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:13,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-13 13:07:13,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:13,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 13:07:13,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:13,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:07:13,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:13,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:13,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:13,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:13,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-13 13:07:13,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:13,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:13,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-13 13:07:14,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:14,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:14,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:14,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-13 13:07:14,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:14,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:14,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:14,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-13 13:07:14,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:14,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-13 13:07:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:14,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:14,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:14,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 13:07:14,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:14,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:15,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:07:15,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:15,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:15,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:15,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:07:15,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:15,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:15,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:15,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:15,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:07:15,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:15,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:07:15,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 18 proven. 177 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 13:07:15,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547635277] [2020-10-13 13:07:15,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:15,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-13 13:07:15,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142356394] [2020-10-13 13:07:15,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-13 13:07:15,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:15,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-13 13:07:15,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-10-13 13:07:15,192 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 16 states. [2020-10-13 13:07:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:15,394 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-13 13:07:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:07:15,394 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-10-13 13:07:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:15,396 INFO L225 Difference]: With dead ends: 52 [2020-10-13 13:07:15,396 INFO L226 Difference]: Without dead ends: 48 [2020-10-13 13:07:15,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:07:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-13 13:07:15,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-13 13:07:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-13 13:07:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-13 13:07:15,407 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-13 13:07:15,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:15,408 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-13 13:07:15,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-13 13:07:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-13 13:07:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 13:07:15,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:15,410 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:15,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:07:15,410 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:15,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:15,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2010530748, now seen corresponding path program 11 times [2020-10-13 13:07:15,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:15,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220905168] [2020-10-13 13:07:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 13:07:15,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-13 13:07:15,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 13:07:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-13 13:07:15,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:15,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:15,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:15,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:15,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:15,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:15,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:16,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:16,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:16,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-13 13:07:16,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 13:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 13:07:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:16,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:16,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:16,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:16,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-13 13:07:16,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:16,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:16,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:16,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-13 13:07:17,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-13 13:07:17,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:17,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:17,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-13 13:07:17,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:17,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:17,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 13:07:17,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:17,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:17,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 13:07:17,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:17,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:17,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 13:07:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:17,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:17,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:17,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:17,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:17,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 13:07:17,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:17,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:18,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:18,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:18,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:18,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 13:07:18,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:18,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:18,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:07:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:18,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:18,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:18,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 13:07:18,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:18,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:18,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:18,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:07:18,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:18,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:18,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:18,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:07:18,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:18,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:18,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:07:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 8 proven. 217 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 13:07:18,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220905168] [2020-10-13 13:07:18,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:18,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 13:07:18,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606308637] [2020-10-13 13:07:18,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:07:18,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:18,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:07:18,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:07:18,235 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 17 states. [2020-10-13 13:07:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:18,444 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-13 13:07:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:07:18,444 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-13 13:07:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:18,446 INFO L225 Difference]: With dead ends: 55 [2020-10-13 13:07:18,446 INFO L226 Difference]: Without dead ends: 51 [2020-10-13 13:07:18,448 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 [2020-10-13 13:07:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-13 13:07:18,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-13 13:07:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-13 13:07:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-13 13:07:18,457 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-13 13:07:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:18,458 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-13 13:07:18,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:07:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-13 13:07:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 13:07:18,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:18,461 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:18,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:07:18,461 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:18,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:18,462 INFO L82 PathProgramCache]: Analyzing trace with hash -986521316, now seen corresponding path program 12 times [2020-10-13 13:07:18,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:18,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275586638] [2020-10-13 13:07:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:18,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 13:07:19,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:19,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-13 13:07:19,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:19,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:07:19,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:19,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:19,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:19,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-10-13 13:07:19,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-13 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 13:07:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:19,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:19,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:19,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:19,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:19,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-13 13:07:19,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:19,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:19,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:19,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-13 13:07:20,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:20,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:20,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 13:07:20,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:20,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:20,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:20,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-13 13:07:20,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:20,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:20,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:20,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:20,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:21,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:21,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 13:07:21,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:21,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:21,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 13:07:21,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:21,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:21,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 13:07:21,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:21,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:21,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:21,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:21,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 13:07:21,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:21,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:07:21,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:21,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:21,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:07:21,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:21,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:21,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:21,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:21,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:07:21,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:21,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 22 proven. 272 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-13 13:07:21,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275586638] [2020-10-13 13:07:21,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:21,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-13 13:07:21,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082671575] [2020-10-13 13:07:21,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:07:21,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:21,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:07:21,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:07:21,547 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 18 states. [2020-10-13 13:07:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:21,736 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-13 13:07:21,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:07:21,737 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 85 [2020-10-13 13:07:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:21,738 INFO L225 Difference]: With dead ends: 58 [2020-10-13 13:07:21,738 INFO L226 Difference]: Without dead ends: 54 [2020-10-13 13:07:21,739 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 [2020-10-13 13:07:21,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-13 13:07:21,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-13 13:07:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-13 13:07:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-13 13:07:21,744 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-13 13:07:21,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:21,745 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-13 13:07:21,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:07:21,745 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-13 13:07:21,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 13:07:21,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:21,746 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:21,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:07:21,747 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:21,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:21,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1073897604, now seen corresponding path program 13 times [2020-10-13 13:07:21,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:21,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576605543] [2020-10-13 13:07:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:21,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:22,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:22,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 13:07:22,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-13 13:07:22,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 13:07:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:22,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:22,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:22,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:22,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:22,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:22,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:22,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:22,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:22,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:22,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:22,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:22,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:22,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:22,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:22,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:22,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:22,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-13 13:07:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:22,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:22,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:22,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:22,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:22,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:22,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:23,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:23,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:23,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:23,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:23,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:23,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:23,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:23,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-13 13:07:23,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:23,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:23,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:23,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:23,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:23,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-13 13:07:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:23,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:23,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:24,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:24,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:24,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 13:07:24,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:24,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:24,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:24,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 13:07:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:24,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:07:24,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:24,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 13:07:24,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:24,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:24,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:07:24,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:24,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:07:24,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:24,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:24,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:24,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:24,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:24,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:24,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:07:24,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:24,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:24,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:24,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:24,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 28 proven. 322 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-10-13 13:07:24,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576605543] [2020-10-13 13:07:24,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:24,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 13:07:24,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178563015] [2020-10-13 13:07:24,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:07:24,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:24,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:07:24,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:07:24,871 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 19 states. [2020-10-13 13:07:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:25,169 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-13 13:07:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:07:25,170 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-13 13:07:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:25,172 INFO L225 Difference]: With dead ends: 61 [2020-10-13 13:07:25,172 INFO L226 Difference]: Without dead ends: 57 [2020-10-13 13:07:25,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 13:07:25,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-13 13:07:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-13 13:07:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 13:07:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-13 13:07:25,179 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-13 13:07:25,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:25,180 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-13 13:07:25,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:07:25,180 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-13 13:07:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 13:07:25,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:25,182 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:25,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:07:25,182 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:25,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1572648100, now seen corresponding path program 14 times [2020-10-13 13:07:25,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:25,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839491876] [2020-10-13 13:07:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:25,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:25,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 13:07:25,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:25,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-13 13:07:25,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 13:07:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:25,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 13:07:25,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:25,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:25,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:25,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:25,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:25,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:25,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:25,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:25,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:25,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:25,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:26,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:26,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:26,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:26,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-13 13:07:26,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:26,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-13 13:07:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:26,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-13 13:07:26,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:26,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:26,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:26,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:26,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:26,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:26,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-13 13:07:26,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:26,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:26,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:26,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:26,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:27,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 13:07:27,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:27,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:27,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-13 13:07:27,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:27,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:27,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:27,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:27,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:27,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:27,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:27,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-13 13:07:27,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:27,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:27,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:27,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:28,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:28,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 13:07:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:28,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:28,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 13:07:28,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:28,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:28,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 13:07:28,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:28,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:28,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:07:28,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:28,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:28,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:28,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:07:28,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:28,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:28,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:28,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:28,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:28,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:07:28,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:28,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:28,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 58 proven. 346 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-10-13 13:07:28,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839491876] [2020-10-13 13:07:28,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:28,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 13:07:28,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120805798] [2020-10-13 13:07:28,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 13:07:28,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:28,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 13:07:28,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-10-13 13:07:28,843 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 21 states. [2020-10-13 13:07:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:29,096 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-13 13:07:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:07:29,097 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 97 [2020-10-13 13:07:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:29,099 INFO L225 Difference]: With dead ends: 64 [2020-10-13 13:07:29,099 INFO L226 Difference]: Without dead ends: 60 [2020-10-13 13:07:29,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 13:07:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-13 13:07:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-13 13:07:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 13:07:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-13 13:07:29,106 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-13 13:07:29,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:29,106 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-13 13:07:29,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 13:07:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-13 13:07:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 13:07:29,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:29,108 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:29,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:07:29,108 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:29,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:29,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1584030916, now seen corresponding path program 15 times [2020-10-13 13:07:29,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:29,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897340256] [2020-10-13 13:07:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:29,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:29,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 657 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:29,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 13:07:29,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:29,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:29,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:29,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:29,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:30,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 13:07:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 13:07:30,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:30,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:30,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:30,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:30,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:30,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-13 13:07:30,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:30,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:30,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:30,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:30,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:30,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:30,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:30,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:30,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:31,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-13 13:07:31,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:31,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:31,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-13 13:07:31,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:31,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:31,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:31,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:31,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:31,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-13 13:07:31,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:31,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:31,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:31,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:31,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:32,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 13:07:32,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:32,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:32,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 13:07:32,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:32,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:32,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:07:32,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:32,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:32,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:32,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:32,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:07:32,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:07:32,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:32,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:32,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:32,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:32,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:07:32,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:32,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:32,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:32,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:32,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:07:32,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:32,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:32,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:32,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:32,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 22 proven. 429 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-13 13:07:32,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897340256] [2020-10-13 13:07:32,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:32,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 13:07:32,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529600939] [2020-10-13 13:07:32,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 13:07:32,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:32,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 13:07:32,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-10-13 13:07:32,797 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 22 states. [2020-10-13 13:07:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:33,086 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-13 13:07:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 13:07:33,086 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2020-10-13 13:07:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:33,088 INFO L225 Difference]: With dead ends: 67 [2020-10-13 13:07:33,088 INFO L226 Difference]: Without dead ends: 63 [2020-10-13 13:07:33,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=499, Invalid=907, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 13:07:33,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-13 13:07:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-13 13:07:33,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-13 13:07:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-13 13:07:33,095 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-13 13:07:33,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:33,096 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-13 13:07:33,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 13:07:33,096 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-13 13:07:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 13:07:33,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:33,097 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:33,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:07:33,097 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:33,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1066046876, now seen corresponding path program 16 times [2020-10-13 13:07:33,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:33,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415075330] [2020-10-13 13:07:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 13:07:33,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-13 13:07:33,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-13 13:07:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 13:07:33,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:33,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:33,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:33,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:33,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:33,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:33,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:33,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:33,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:33,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:33,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:34,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-13 13:07:34,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:34,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:34,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:34,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:34,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-13 13:07:34,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:07:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:34,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:34,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:35,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:35,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:35,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:35,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:35,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:35,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:35,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:35,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:35,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:36,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:36,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:36,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 13:07:36,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:36,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:36,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:36,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:36,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:36,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 13:07:36,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:36,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:36,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-13 13:07:36,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:36,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:36,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:36,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:36,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:36,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:36,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:36,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:36,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:36,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:07:36,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:36,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:36,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:36,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:36,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:37,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:37,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:37,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:37,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:37,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:37,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:37,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:37,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 13:07:37,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:37,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:37,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:37,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:37,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:37,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:37,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:37,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:37,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:07:37,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:37,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:37,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:37,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:37,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:37,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:37,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:37,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:07:37,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:37,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:37,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:37,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:07:37,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 62 proven. 466 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-13 13:07:37,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415075330] [2020-10-13 13:07:37,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:37,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 13:07:37,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818866927] [2020-10-13 13:07:37,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 13:07:37,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:37,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 13:07:37,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:07:37,279 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 23 states. [2020-10-13 13:07:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:37,599 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-13 13:07:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 13:07:37,602 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 109 [2020-10-13 13:07:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:37,603 INFO L225 Difference]: With dead ends: 70 [2020-10-13 13:07:37,603 INFO L226 Difference]: Without dead ends: 66 [2020-10-13 13:07:37,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=555, Invalid=1005, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 13:07:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-13 13:07:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-13 13:07:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 13:07:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-13 13:07:37,617 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-13 13:07:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:37,617 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-13 13:07:37,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 13:07:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-13 13:07:37,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-13 13:07:37,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:37,622 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:37,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:07:37,622 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:37,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1300351236, now seen corresponding path program 17 times [2020-10-13 13:07:37,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:37,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47657012] [2020-10-13 13:07:37,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:37,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:38,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:38,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-13 13:07:38,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-13 13:07:38,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 13:07:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-13 13:07:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:38,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:38,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:38,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:38,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:38,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:38,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:38,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:38,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:38,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:38,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:38,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:38,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:38,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-13 13:07:38,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 13:07:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:38,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-13 13:07:38,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:38,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:38,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:39,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:07:39,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:39,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:39,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:39,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:39,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-13 13:07:39,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:07:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:39,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:40,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:40,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:40,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:40,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:40,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:40,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:40,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:40,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:40,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:40,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:40,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-13 13:07:40,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:40,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:40,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:40,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:40,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:40,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-13 13:07:40,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:40,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:40,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:40,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:40,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-13 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:41,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:41,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:41,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:41,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-13 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:41,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:41,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:41,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:41,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 13:07:41,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:41,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:41,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:41,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:41,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:41,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:41,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:07:41,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:41,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:41,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:41,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:41,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:42,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:07:42,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:42,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:42,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:07:42,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:42,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:07:42,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:42,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:42,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:07:42,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:42,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:42,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:42,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:42,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:42,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:07:42,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:42,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 84 proven. 496 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-10-13 13:07:42,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47657012] [2020-10-13 13:07:42,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:42,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 13:07:42,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051012734] [2020-10-13 13:07:42,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 13:07:42,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:42,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 13:07:42,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:07:42,339 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 23 states. [2020-10-13 13:07:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:42,655 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-13 13:07:42,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 13:07:42,656 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 115 [2020-10-13 13:07:42,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:42,657 INFO L225 Difference]: With dead ends: 73 [2020-10-13 13:07:42,657 INFO L226 Difference]: Without dead ends: 69 [2020-10-13 13:07:42,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-10-13 13:07:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-13 13:07:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-13 13:07:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-13 13:07:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-13 13:07:42,666 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-13 13:07:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:42,666 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-13 13:07:42,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 13:07:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-13 13:07:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 13:07:42,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:42,668 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:42,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:07:42,668 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:42,668 INFO L82 PathProgramCache]: Analyzing trace with hash 227065820, now seen corresponding path program 18 times [2020-10-13 13:07:42,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:42,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018195405] [2020-10-13 13:07:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:42,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 13:07:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:43,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:43,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:43,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:43,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:43,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:43,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 551 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-13 13:07:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:44,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:44,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:44,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:44,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:07:44,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:44,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:45,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-13 13:07:45,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:07:45,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:45,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-13 13:07:45,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:07:45,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:45,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:45,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:45,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:45,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:45,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:46,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:46,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-13 13:07:46,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:46,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:46,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:46,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:46,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:46,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:46,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:47,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-13 13:07:47,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:47,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-13 13:07:47,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:47,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:47,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:47,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 13:07:47,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 13:07:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:47,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:07:47,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:47,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:47,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:07:47,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:47,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:07:47,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:47,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:47,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:47,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:07:47,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:47,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:47,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:47,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:47,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:47,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:07:47,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 64 proven. 596 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-10-13 13:07:47,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018195405] [2020-10-13 13:07:47,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:47,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-13 13:07:47,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80725048] [2020-10-13 13:07:47,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-13 13:07:47,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:47,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-13 13:07:47,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:07:47,844 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2020-10-13 13:07:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:48,182 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-13 13:07:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 13:07:48,183 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 121 [2020-10-13 13:07:48,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:48,185 INFO L225 Difference]: With dead ends: 76 [2020-10-13 13:07:48,185 INFO L226 Difference]: Without dead ends: 72 [2020-10-13 13:07:48,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-10-13 13:07:48,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-13 13:07:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-13 13:07:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-13 13:07:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-13 13:07:48,201 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-13 13:07:48,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:48,202 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-13 13:07:48,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-13 13:07:48,202 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-13 13:07:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 13:07:48,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:48,206 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:48,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:07:48,206 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:48,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:48,206 INFO L82 PathProgramCache]: Analyzing trace with hash -479687356, now seen corresponding path program 19 times [2020-10-13 13:07:48,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:48,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200496218] [2020-10-13 13:07:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 680 [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 13:07:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-13 13:07:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:48,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:48,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:48,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:48,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:48,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:48,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:48,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:49,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 660 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-13 13:07:49,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:49,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:49,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:50,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:50,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:50,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:50,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-10-13 13:07:50,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:50,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:07:50,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:50,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:50,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:50,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:50,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:50,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:07:50,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:50,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:50,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:51,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:51,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:07:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:51,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:51,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:51,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:51,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:51,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:51,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-13 13:07:51,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:51,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:07:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:51,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:52,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:52,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:52,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-13 13:07:52,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:52,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:52,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:52,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:52,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:52,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:52,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:52,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:52,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:52,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-13 13:07:52,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:52,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:52,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:52,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:52,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:07:52,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:52,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 13:07:52,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:07:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:52,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:07:52,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:52,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:52,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:07:53,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:07:53,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:07:53,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 13:07:53,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:07:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:07:53,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:07:53,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 13:07:53,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:07:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:07:53,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:07:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:07:53,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 13:07:53,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:07:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:07:53,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:07:53,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:07:53,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:07:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:07:53,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:07:53,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:07:53,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:07:53,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:07:53,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:07:53,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:07:53,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:07:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:07:53,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:07:53,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:07:53,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:07:53,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:07:53,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:07:53,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:07:53,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:07:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:07:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:53,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:53,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:53,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:53,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:07:53,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:07:53,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:07:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:07:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:07:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 110 proven. 595 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2020-10-13 13:07:54,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200496218] [2020-10-13 13:07:54,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:07:54,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 13:07:54,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269914832] [2020-10-13 13:07:54,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 13:07:54,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:07:54,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 13:07:54,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:07:54,020 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 25 states. [2020-10-13 13:07:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:07:54,402 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-13 13:07:54,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 13:07:54,403 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 127 [2020-10-13 13:07:54,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:07:54,405 INFO L225 Difference]: With dead ends: 79 [2020-10-13 13:07:54,405 INFO L226 Difference]: Without dead ends: 75 [2020-10-13 13:07:54,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:07:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-13 13:07:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-13 13:07:54,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-13 13:07:54,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-13 13:07:54,411 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-13 13:07:54,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:07:54,411 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-13 13:07:54,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 13:07:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-13 13:07:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-13 13:07:54,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:07:54,413 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:07:54,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:07:54,413 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:07:54,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:07:54,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1598174692, now seen corresponding path program 20 times [2020-10-13 13:07:54,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:07:54,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052757260] [2020-10-13 13:07:54,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:07:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:55,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 745 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 13:07:55,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:55,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:07:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:55,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:55,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:55,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:07:55,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:07:55,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:07:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:55,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:07:55,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:55,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:07:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:55,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:55,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-13 13:07:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:55,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:56,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:56,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:07:56,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-13 13:07:56,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:07:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-13 13:07:56,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:56,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:56,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:57,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:57,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:07:57,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:57,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:07:57,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-13 13:07:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:07:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:57,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:07:57,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:57,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:58,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:58,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:07:58,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:58,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-13 13:07:58,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:07:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:58,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:07:58,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:58,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:58,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:58,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:58,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:07:58,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:07:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:58,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:59,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:59,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:07:59,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:07:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:59,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:59,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:07:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:59,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:59,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:07:59,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:07:59,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:07:59,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:07:59,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-13 13:07:59,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:07:59,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:07:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:07:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:07:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:07:59,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:07:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:07:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:08:00,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-13 13:08:00,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:08:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:08:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:08:00,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:08:00,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:08:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:08:00,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:08:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:08:00,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:08:00,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 13:08:00,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:08:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:08:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:08:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:08:00,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:08:00,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:08:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:08:00,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:08:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:08:00,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:08:00,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:08:00,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:08:00,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:08:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:00,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:00,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:00,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:08:00,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:00,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:08:00,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:08:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:00,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:08:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:00,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:01,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:08:01,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:08:01,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:08:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:08:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:01,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:01,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:01,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:08:01,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:01,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:08:01,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:08:01,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:01,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:08:01,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 12 proven. 637 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2020-10-13 13:08:01,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052757260] [2020-10-13 13:08:01,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:08:01,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-13 13:08:01,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393787902] [2020-10-13 13:08:01,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-13 13:08:01,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:08:01,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-13 13:08:01,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=390, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:08:01,155 INFO L87 Difference]: Start difference. First operand 75 states and 76 transitions. Second operand 26 states. [2020-10-13 13:08:01,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:08:01,536 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-13 13:08:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 13:08:01,536 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 133 [2020-10-13 13:08:01,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:08:01,538 INFO L225 Difference]: With dead ends: 82 [2020-10-13 13:08:01,538 INFO L226 Difference]: Without dead ends: 78 [2020-10-13 13:08:01,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=785, Invalid=1377, Unknown=0, NotChecked=0, Total=2162 [2020-10-13 13:08:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-13 13:08:01,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-13 13:08:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-13 13:08:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-10-13 13:08:01,544 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 133 [2020-10-13 13:08:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:08:01,544 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-10-13 13:08:01,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-13 13:08:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-10-13 13:08:01,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 13:08:01,546 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:08:01,546 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:08:01,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:08:01,546 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:08:01,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:08:01,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1648275844, now seen corresponding path program 21 times [2020-10-13 13:08:01,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:08:01,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505278578] [2020-10-13 13:08:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:08:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:01,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:02,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:08:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:02,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:08:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:02,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:08:02,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:08:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:03,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:03,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 13:08:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:03,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:08:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 13:08:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:04,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:05,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-13 13:08:05,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:05,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:05,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:05,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:08:05,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:05,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-13 13:08:05,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:08:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:08:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:05,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:06,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:08:06,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:06,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:08:06,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:06,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:06,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:06,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:08:06,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:06,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:07,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:07,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:08:07,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:07,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-13 13:08:07,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:08:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:08:07,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:07,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:07,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:07,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:07,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:08:07,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:07,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-13 13:08:07,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:08:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:08:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:07,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:07,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:08:08,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-13 13:08:08,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:08:08,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:08:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:08,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:08,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:08:08,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-13 13:08:08,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:08:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:08:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:08,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:08,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:08:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-13 13:08:08,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:08:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:08:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:08,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:08:08,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:08,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:08,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:08:08,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 13:08:08,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:08:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:08:08,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:08,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:08,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:08,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:08,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:08:08,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 13:08:08,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:08:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:08:08,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:08:09,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 13:08:09,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:08:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:08:09,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:08:09,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:08:09,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:08:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:08:09,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:08:09,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 13:08:09,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:08:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:08:09,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:08:09,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 13:08:09,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:08:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:08:09,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:08:09,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:08:09,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:08:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:08:09,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:08:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:08:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:08:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:08:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:08:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:08:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:08:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:08:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:09,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:09,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:09,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:08:09,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:09,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:08:09,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:09,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:08:09,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:09,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:08:09,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 64 proven. 773 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2020-10-13 13:08:09,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505278578] [2020-10-13 13:08:09,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:08:09,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-13 13:08:09,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118380126] [2020-10-13 13:08:09,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-13 13:08:09,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:08:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-13 13:08:09,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=419, Unknown=0, NotChecked=0, Total=702 [2020-10-13 13:08:09,640 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 27 states. [2020-10-13 13:08:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:08:10,044 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-13 13:08:10,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 13:08:10,045 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 139 [2020-10-13 13:08:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:08:10,047 INFO L225 Difference]: With dead ends: 85 [2020-10-13 13:08:10,047 INFO L226 Difference]: Without dead ends: 81 [2020-10-13 13:08:10,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=855, Invalid=1497, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:08:10,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-10-13 13:08:10,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-10-13 13:08:10,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-13 13:08:10,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 82 transitions. [2020-10-13 13:08:10,054 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 82 transitions. Word has length 139 [2020-10-13 13:08:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:08:10,054 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 82 transitions. [2020-10-13 13:08:10,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-13 13:08:10,054 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 82 transitions. [2020-10-13 13:08:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-13 13:08:10,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:08:10,056 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:08:10,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 13:08:10,056 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:08:10,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:08:10,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1314278308, now seen corresponding path program 22 times [2020-10-13 13:08:10,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:08:10,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764401723] [2020-10-13 13:08:10,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:08:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:10,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-13 13:08:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:08:11,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-13 13:08:11,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:08:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:11,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:11,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:11,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:08:11,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:08:11,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:08:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:08:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:08:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:11,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 821 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-13 13:08:11,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:11,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:11,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:12,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:12,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:08:12,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-10-13 13:08:12,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:08:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:12,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-13 13:08:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:12,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:12,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:08:13,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:13,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 13:08:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:13,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:14,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:14,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:08:14,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:14,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 640 [2020-10-13 13:08:14,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:08:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:14,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-13 13:08:14,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:14,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:14,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:14,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:08:14,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:14,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-13 13:08:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:08:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:14,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:08:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:14,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:14,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:15,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:08:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 13:08:15,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:08:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:08:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:15,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:15,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:15,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:15,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:08:15,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-13 13:08:15,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:08:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:15,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:08:15,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:15,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:15,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:16,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:16,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:08:16,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:16,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-13 13:08:16,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:08:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:08:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:16,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:16,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:16,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:08:16,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:08:16,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:16,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:16,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:16,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:16,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:08:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:16,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:17,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:17,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:08:17,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:17,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-13 13:08:17,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:08:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:17,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:08:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:17,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:17,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:17,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:08:17,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:17,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 13:08:17,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:08:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:08:17,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:17,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:17,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:17,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:08:17,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:08:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:17,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:17,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:17,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:17,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:08:17,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:17,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-13 13:08:17,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:17,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:08:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:17,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:08:17,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:17,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:08:18,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 13:08:18,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:08:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:08:18,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:08:18,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 13:08:18,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:08:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:08:18,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:08:18,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-13 13:08:18,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:08:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:08:18,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:08:18,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 13:08:18,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:08:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:08:18,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:08:18,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 13:08:18,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:08:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:08:18,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:08:18,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 13:08:18,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:08:18,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:08:18,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:08:18,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:08:18,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:08:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:08:18,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:08:18,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:08:18,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:08:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:08:18,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:18,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:18,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:18,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:08:18,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:18,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:08:18,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:08:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:18,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:08:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 135 proven. 827 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2020-10-13 13:08:18,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764401723] [2020-10-13 13:08:18,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:08:18,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-13 13:08:18,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727129794] [2020-10-13 13:08:18,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-13 13:08:18,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:08:18,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-13 13:08:18,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:08:18,786 INFO L87 Difference]: Start difference. First operand 81 states and 82 transitions. Second operand 28 states. [2020-10-13 13:08:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:08:19,218 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-13 13:08:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-13 13:08:19,219 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 145 [2020-10-13 13:08:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:08:19,220 INFO L225 Difference]: With dead ends: 88 [2020-10-13 13:08:19,221 INFO L226 Difference]: Without dead ends: 84 [2020-10-13 13:08:19,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=928, Invalid=1622, Unknown=0, NotChecked=0, Total=2550 [2020-10-13 13:08:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-13 13:08:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-13 13:08:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-13 13:08:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2020-10-13 13:08:19,227 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 145 [2020-10-13 13:08:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:08:19,227 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2020-10-13 13:08:19,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-13 13:08:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2020-10-13 13:08:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:08:19,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:08:19,229 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:08:19,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 13:08:19,229 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:08:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:08:19,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2015638980, now seen corresponding path program 23 times [2020-10-13 13:08:19,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:08:19,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706584142] [2020-10-13 13:08:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:08:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:20,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:20,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 13:08:20,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-13 13:08:20,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:08:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:20,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:08:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:20,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:08:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:20,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:21,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-13 13:08:21,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:21,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:22,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 13:08:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:22,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-13 13:08:22,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:22,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:22,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:23,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:23,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:08:23,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:23,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-10-13 13:08:23,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:08:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:23,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-13 13:08:23,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:23,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:23,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:23,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 13:08:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:23,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:23,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:24,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:24,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:08:24,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:24,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-10-13 13:08:24,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:24,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:08:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:24,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-13 13:08:24,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:24,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:25,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:25,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:08:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-13 13:08:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:08:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:08:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:25,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:25,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:25,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:08:25,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-13 13:08:25,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:08:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:25,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:08:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:25,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:25,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:26,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:26,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:08:26,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:26,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-13 13:08:26,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:26,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:08:26,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:26,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:08:26,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:26,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:26,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:26,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:08:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:26,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:26,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:26,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:08:26,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:08:26,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:26,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:27,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:27,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:08:27,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:27,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-13 13:08:27,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:08:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:08:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:27,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:27,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:27,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:08:27,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-13 13:08:27,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:08:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:27,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:27,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:27,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:08:27,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:08:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:27,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:27,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:27,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:08:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-13 13:08:27,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:08:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:08:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:08:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 13:08:27,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:08:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:08:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:27,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:08:28,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 13:08:28,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:08:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:08:28,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:08:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 13:08:28,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:08:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:08:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:08:28,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 13:08:28,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:08:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:08:28,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:28,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:08:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 13:08:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:08:28,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:08:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:08:28,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:08:28,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:08:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:08:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:08:28,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 13:08:28,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:08:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:08:28,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:08:28,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:08:28,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:08:28,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:08:28,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:08:28,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:08:28,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:08:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:08:28,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:28,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:28,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:28,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:08:28,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:28,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:08:28,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:28,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:08:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:28,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:08:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 118 proven. 948 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-10-13 13:08:28,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706584142] [2020-10-13 13:08:28,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:08:28,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-13 13:08:28,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000188556] [2020-10-13 13:08:28,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-13 13:08:28,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:08:28,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-13 13:08:28,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=480, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:08:28,794 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 29 states. [2020-10-13 13:08:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:08:29,218 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-13 13:08:29,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 13:08:29,219 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 151 [2020-10-13 13:08:29,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:08:29,220 INFO L225 Difference]: With dead ends: 91 [2020-10-13 13:08:29,220 INFO L226 Difference]: Without dead ends: 87 [2020-10-13 13:08:29,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1004, Invalid=1752, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 13:08:29,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-13 13:08:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-13 13:08:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-13 13:08:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-13 13:08:29,227 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 151 [2020-10-13 13:08:29,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:08:29,227 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-13 13:08:29,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-13 13:08:29,228 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-13 13:08:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 13:08:29,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:08:29,229 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:08:29,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 13:08:29,230 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:08:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:08:29,236 INFO L82 PathProgramCache]: Analyzing trace with hash 483163804, now seen corresponding path program 24 times [2020-10-13 13:08:29,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:08:29,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750930738] [2020-10-13 13:08:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:08:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:29,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1226 [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 13:08:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:08:30,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 13:08:30,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:30,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:08:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:08:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:30,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:08:30,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:30,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 13:08:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:30,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-13 13:08:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:31,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:31,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:32,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:32,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 13:08:32,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-13 13:08:32,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:32,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:32,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1145 [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:33,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 13:08:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:33,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-13 13:08:33,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:33,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:33,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:34,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 831 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-13 13:08:34,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:34,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:34,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:35,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 13:08:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:35,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:35,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:36,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:36,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-13 13:08:36,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:36,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-13 13:08:36,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:36,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:36,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 13:08:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-13 13:08:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:37,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:37,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 13:08:37,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 13:08:37,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:38,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:38,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 13:08:38,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 13:08:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:38,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:38,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:38,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 13:08:38,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 13:08:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:38,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:38,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:38,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:38,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 13:08:38,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-13 13:08:38,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-13 13:08:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:38,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 13:08:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:38,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:38,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 13:08:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 13:08:39,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-13 13:08:39,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-13 13:08:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 13:08:39,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 13:08:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-13 13:08:39,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 13:08:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 13:08:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 13:08:39,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 13:08:39,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-13 13:08:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 13:08:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 13:08:39,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 13:08:39,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 13:08:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 13:08:39,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 13:08:39,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 13:08:39,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 13:08:39,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:08:39,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:39,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:39,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:39,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 13:08:39,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:39,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 13:08:39,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:08:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:08:39,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 13:08:40,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:08:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 13:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 13:08:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:08:40,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 13:08:40,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 13:08:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 13:08:40,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 13:08:40,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:08:40,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 13:08:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 13:08:40,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 13:08:40,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:08:40,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 13:08:40,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:08:40,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:08:40,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:08:40,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:08:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:08:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:08:40,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 13:08:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:08:40,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:08:40,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:08:40,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:08:40,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:08:40,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:08:40,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:08:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:08:40,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:08:40,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:08:40,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:08:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 134 proven. 987 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2020-10-13 13:08:40,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750930738] [2020-10-13 13:08:40,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:08:40,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 13:08:40,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270987219] [2020-10-13 13:08:40,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 13:08:40,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:08:40,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 13:08:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=512, Unknown=0, NotChecked=0, Total=870 [2020-10-13 13:08:40,555 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 30 states. [2020-10-13 13:08:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:08:41,025 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-10-13 13:08:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 13:08:41,026 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 157 [2020-10-13 13:08:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:08:41,028 INFO L225 Difference]: With dead ends: 94 [2020-10-13 13:08:41,028 INFO L226 Difference]: Without dead ends: 90 [2020-10-13 13:08:41,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1083, Invalid=1887, Unknown=0, NotChecked=0, Total=2970 [2020-10-13 13:08:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-13 13:08:41,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-10-13 13:08:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-13 13:08:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-10-13 13:08:41,035 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 157 [2020-10-13 13:08:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:08:41,035 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-10-13 13:08:41,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 13:08:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-10-13 13:08:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 13:08:41,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:08:41,037 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:08:41,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 13:08:41,037 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:08:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:08:41,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1060706820, now seen corresponding path program 25 times [2020-10-13 13:08:41,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:08:41,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466991654] [2020-10-13 13:08:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:08:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 13:08:41,061 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 13:08:41,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 13:08:41,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 13:08:41,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:08:41 BoogieIcfgContainer [2020-10-13 13:08:41,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 13:08:41,097 INFO L168 Benchmark]: Toolchain (without parser) took 101063.34 ms. Allocated memory was 140.0 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 103.4 MB in the beginning and 230.5 MB in the end (delta: -127.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,097 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.26 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,098 INFO L168 Benchmark]: Boogie Preprocessor took 35.59 ms. Allocated memory is still 140.0 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,099 INFO L168 Benchmark]: RCFGBuilder took 320.06 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.5 MB in the beginning and 169.8 MB in the end (delta: -77.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,099 INFO L168 Benchmark]: TraceAbstraction took 100442.92 ms. Allocated memory was 202.4 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 169.8 MB in the beginning and 230.5 MB in the end (delta: -60.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 13:08:41,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.26 ms. Allocated memory is still 140.0 MB. Free memory was 103.0 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.59 ms. Allocated memory is still 140.0 MB. Free memory was 93.9 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 320.06 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 92.5 MB in the beginning and 169.8 MB in the end (delta: -77.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 100442.92 ms. Allocated memory was 202.4 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 169.8 MB in the beginning and 230.5 MB in the end (delta: -60.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int a = 25; [L13] int b = 0; [L14] CALL, EXPR sum(a, b) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND FALSE !(n <= 0) [L7] CALL, EXPR sum(n - 1, m + 1) [L4] COND TRUE n <= 0 [L5] return m + n; [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L7] RET, EXPR sum(n - 1, m + 1) [L7] return sum(n - 1, m + 1); [L14] RET, EXPR sum(a, b) [L14] int result = sum(a, b); [L15] COND TRUE result == a + b [L16] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 100.3s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 1086 SDslu, 1663 SDs, 0 SdLazy, 1159 SolverSat, 230 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1425 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 727 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5221 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 25 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 92.7s InterpolantComputationTime, 2288 NumberOfCodeBlocks, 2288 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2100 ConstructedInterpolants, 0 QuantifiedInterpolants, 574158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 6366/15000 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...