/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/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:57:14,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:57:14,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:57:14,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:57:14,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:57:14,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:57:14,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:57:14,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:57:14,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:57:14,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:57:14,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:57:14,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:57:14,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:57:14,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:57:14,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:57:14,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:57:14,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:57:14,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:57:14,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:57:14,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:57:14,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:57:14,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:57:14,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:57:14,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:57:14,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:57:14,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:57:14,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:57:14,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:57:14,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:57:14,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:57:14,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:57:14,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:57:14,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:57:14,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:57:14,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:57:14,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:57:14,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:57:14,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:57:14,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:57:14,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:57:14,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:57:14,795 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 12:57:14,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:57:14,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:57:14,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:57:14,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:57:14,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:57:14,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:57:14,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:57:14,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:57:14,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:57:14,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:57:14,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:57:14,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:57:14,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:57:14,838 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:57:14,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:57:14,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:57:14,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:57:14,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:57:14,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:57:14,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:57:14,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:57:14,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:57:14,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:57:14,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:57:14,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:57:14,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:57:14,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:57:14,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:57:14,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:57:14,841 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 12:57:15,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:57:15,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:57:15,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:57:15,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:57:15,181 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:57:15,181 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-13 12:57:15,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22e700277/58436bf509244ef1b1c80743d92f8e90/FLAG332fda6a8 [2020-10-13 12:57:15,667 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:57:15,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi03-2.c [2020-10-13 12:57:15,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22e700277/58436bf509244ef1b1c80743d92f8e90/FLAG332fda6a8 [2020-10-13 12:57:16,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22e700277/58436bf509244ef1b1c80743d92f8e90 [2020-10-13 12:57:16,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:57:16,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:57:16,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:57:16,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:57:16,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:57:16,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e70c28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16, skipping insertion in model container [2020-10-13 12:57:16,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:57:16,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:57:16,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:57:16,260 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:57:16,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:57:16,284 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:57:16,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16 WrapperNode [2020-10-13 12:57:16,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:57:16,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:57:16,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:57:16,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:57:16,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (1/1) ... [2020-10-13 12:57:16,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:57:16,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:57:16,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:57:16,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:57:16,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (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 12:57:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:57:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:57:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-10-13 12:57:16,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:57:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:57:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:57:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-10-13 12:57:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:57:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:57:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:57:16,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:57:16,622 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 12:57:16,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:16 BoogieIcfgContainer [2020-10-13 12:57:16,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:57:16,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:57:16,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:57:16,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:57:16,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:57:16" (1/3) ... [2020-10-13 12:57:16,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ea914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:57:16, skipping insertion in model container [2020-10-13 12:57:16,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:16" (2/3) ... [2020-10-13 12:57:16,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ea914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:57:16, skipping insertion in model container [2020-10-13 12:57:16,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:16" (3/3) ... [2020-10-13 12:57:16,633 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2020-10-13 12:57:16,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:57:16,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:57:16,666 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:57:16,690 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:57:16,691 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:57:16,691 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:57:16,691 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:57:16,691 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:57:16,691 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:57:16,692 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:57:16,692 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:57:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-13 12:57:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 12:57:16,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:16,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:16,717 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:16,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:16,722 INFO L82 PathProgramCache]: Analyzing trace with hash 913793727, now seen corresponding path program 1 times [2020-10-13 12:57:16,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:16,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755439701] [2020-10-13 12:57:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:16,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 12:57:17,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 12:57:17,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:17,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:17,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:57:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 12:57:17,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:57:17,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:17,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:17,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:17,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:57:17,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:57:17,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:17,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:17,193 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 12:57:17,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755439701] [2020-10-13 12:57:17,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:57:17,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:57:17,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741146001] [2020-10-13 12:57:17,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:57:17,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:17,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:57:17,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:57:17,226 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2020-10-13 12:57:17,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:17,349 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-10-13 12:57:17,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 12:57:17,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-13 12:57:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:17,362 INFO L225 Difference]: With dead ends: 33 [2020-10-13 12:57:17,362 INFO L226 Difference]: Without dead ends: 19 [2020-10-13 12:57:17,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:57:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-13 12:57:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-13 12:57:17,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-13 12:57:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-13 12:57:17,409 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-10-13 12:57:17,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:17,410 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-13 12:57:17,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:57:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-13 12:57:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-13 12:57:17,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:17,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:17,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:57:17,413 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1998834103, now seen corresponding path program 1 times [2020-10-13 12:57:17,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:17,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811776790] [2020-10-13 12:57:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 12:57:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-13 12:57:17,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 12:57:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:17,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:17,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:17,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 12:57:17,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 12:57:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:17,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:17,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:17,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:17,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:17,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:17,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:17,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-13 12:57:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 12:57:17,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811776790] [2020-10-13 12:57:17,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:17,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 12:57:17,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298305396] [2020-10-13 12:57:17,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 12:57:17,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:17,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 12:57:17,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:57:17,981 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 9 states. [2020-10-13 12:57:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:18,097 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-13 12:57:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:57:18,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-13 12:57:18,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:18,099 INFO L225 Difference]: With dead ends: 26 [2020-10-13 12:57:18,099 INFO L226 Difference]: Without dead ends: 22 [2020-10-13 12:57:18,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:57:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-13 12:57:18,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-13 12:57:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-13 12:57:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-13 12:57:18,110 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 20 [2020-10-13 12:57:18,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:18,111 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-13 12:57:18,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 12:57:18,111 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-13 12:57:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 12:57:18,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:18,113 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:18,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:57:18,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:18,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:18,114 INFO L82 PathProgramCache]: Analyzing trace with hash 293522751, now seen corresponding path program 2 times [2020-10-13 12:57:18,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:18,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218564052] [2020-10-13 12:57:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 12:57:18,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-13 12:57:18,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:18,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 12:57:18,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:18,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:18,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:18,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:57:18,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:57:18,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:18,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:18,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:18,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 12:57:18,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:18,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:18,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:18,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:18,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:18,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:18,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:18,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 12:57:18,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:18,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 12:57:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 12:57:18,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218564052] [2020-10-13 12:57:18,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:18,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 12:57:18,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931791293] [2020-10-13 12:57:18,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 12:57:18,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:18,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 12:57:18,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:57:18,686 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 10 states. [2020-10-13 12:57:18,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:18,880 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-10-13 12:57:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:57:18,885 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-10-13 12:57:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:18,886 INFO L225 Difference]: With dead ends: 29 [2020-10-13 12:57:18,886 INFO L226 Difference]: Without dead ends: 25 [2020-10-13 12:57:18,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:57:18,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-13 12:57:18,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-13 12:57:18,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-13 12:57:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-10-13 12:57:18,899 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 26 [2020-10-13 12:57:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:18,912 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-10-13 12:57:18,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 12:57:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-10-13 12:57:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-13 12:57:18,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:18,914 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:18,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:57:18,915 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:18,916 INFO L82 PathProgramCache]: Analyzing trace with hash -547108535, now seen corresponding path program 3 times [2020-10-13 12:57:18,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:18,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96747644] [2020-10-13 12:57:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:18,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 12:57:19,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-10-13 12:57:19,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 12:57:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:19,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:19,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:19,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:19,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:19,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:19,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-13 12:57:19,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 12:57:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:19,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:19,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:19,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:19,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:19,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 12:57:19,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:19,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:19,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:19,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 12:57:19,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:19,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:19,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:19,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:19,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:19,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:19,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:19,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:57:19,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:19,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:19,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:19,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-13 12:57:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-13 12:57:19,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96747644] [2020-10-13 12:57:19,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:19,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 12:57:19,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031751885] [2020-10-13 12:57:19,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 12:57:19,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:19,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 12:57:19,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:57:19,755 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 14 states. [2020-10-13 12:57:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:19,989 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-10-13 12:57:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:57:19,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2020-10-13 12:57:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:19,992 INFO L225 Difference]: With dead ends: 32 [2020-10-13 12:57:19,992 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 12:57:19,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-10-13 12:57:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 12:57:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-13 12:57:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 12:57:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-10-13 12:57:19,999 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 32 [2020-10-13 12:57:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:20,000 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-10-13 12:57:20,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 12:57:20,000 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-10-13 12:57:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-13 12:57:20,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:20,002 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:20,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:57:20,002 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:20,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:20,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1152432193, now seen corresponding path program 4 times [2020-10-13 12:57:20,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:20,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915736107] [2020-10-13 12:57:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:57:20,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-13 12:57:20,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:20,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 12:57:20,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:20,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:20,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:20,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 12:57:20,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-13 12:57:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 12:57:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:20,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 12:57:20,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:20,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:20,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:20,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:57:20,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:20,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:20,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:20,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:20,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:20,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:57:20,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:20,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:20,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 12:57:20,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915736107] [2020-10-13 12:57:20,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:20,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 12:57:20,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989391302] [2020-10-13 12:57:20,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 12:57:20,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:20,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 12:57:20,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:57:20,986 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 14 states. [2020-10-13 12:57:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:21,326 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-13 12:57:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:57:21,327 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-10-13 12:57:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:21,328 INFO L225 Difference]: With dead ends: 35 [2020-10-13 12:57:21,328 INFO L226 Difference]: Without dead ends: 31 [2020-10-13 12:57:21,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2020-10-13 12:57:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-13 12:57:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-13 12:57:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-13 12:57:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-10-13 12:57:21,337 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 38 [2020-10-13 12:57:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:21,337 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-10-13 12:57:21,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 12:57:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-10-13 12:57:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-13 12:57:21,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:21,340 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:21,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:57:21,340 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:21,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:21,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1461718089, now seen corresponding path program 5 times [2020-10-13 12:57:21,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:21,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038465600] [2020-10-13 12:57:21,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 12:57:21,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:21,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-13 12:57:21,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:21,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 12:57:21,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:21,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:21,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:21,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:21,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:21,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:21,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:21,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:21,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:21,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:22,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 12:57:22,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-13 12:57:22,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:22,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:22,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:22,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:22,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-13 12:57:22,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:22,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-13 12:57:22,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:22,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:22,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:22,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:22,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:22,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 12:57:22,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:22,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:22,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:57:22,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:22,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:22,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:22,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:22,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:57:22,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:22,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 12:57:22,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038465600] [2020-10-13 12:57:22,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:22,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 12:57:22,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631232229] [2020-10-13 12:57:22,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 12:57:22,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:22,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 12:57:22,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-13 12:57:22,817 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 17 states. [2020-10-13 12:57:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:23,277 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-13 12:57:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:57:23,278 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2020-10-13 12:57:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:23,279 INFO L225 Difference]: With dead ends: 38 [2020-10-13 12:57:23,280 INFO L226 Difference]: Without dead ends: 34 [2020-10-13 12:57:23,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:57:23,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-13 12:57:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-13 12:57:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-13 12:57:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-10-13 12:57:23,287 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 44 [2020-10-13 12:57:23,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:23,287 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-10-13 12:57:23,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 12:57:23,288 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-10-13 12:57:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 12:57:23,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:23,290 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:23,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:57:23,290 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:23,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:23,290 INFO L82 PathProgramCache]: Analyzing trace with hash -269168065, now seen corresponding path program 6 times [2020-10-13 12:57:23,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:23,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374634635] [2020-10-13 12:57:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 12:57:23,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-10-13 12:57:23,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:23,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:23,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 12:57:23,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:23,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:23,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:23,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:23,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:23,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:24,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-13 12:57:24,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-13 12:57:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:24,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-13 12:57:24,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:24,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:24,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 12:57:24,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:24,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:24,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:24,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-13 12:57:24,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:24,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:24,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:24,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:24,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:24,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 12:57:24,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:24,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:24,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:24,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:25,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:25,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:57:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:25,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:25,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:25,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:57:25,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:25,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:25,205 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 12:57:25,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374634635] [2020-10-13 12:57:25,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:25,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 12:57:25,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890168871] [2020-10-13 12:57:25,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 12:57:25,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:25,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 12:57:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:57:25,208 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 19 states. [2020-10-13 12:57:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:25,660 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-13 12:57:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:57:25,660 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 50 [2020-10-13 12:57:25,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:25,662 INFO L225 Difference]: With dead ends: 41 [2020-10-13 12:57:25,662 INFO L226 Difference]: Without dead ends: 37 [2020-10-13 12:57:25,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2020-10-13 12:57:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-13 12:57:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-13 12:57:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-13 12:57:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-10-13 12:57:25,669 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 50 [2020-10-13 12:57:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:25,670 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-10-13 12:57:25,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 12:57:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-10-13 12:57:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-13 12:57:25,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:25,671 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:25,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:57:25,672 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash 585432905, now seen corresponding path program 7 times [2020-10-13 12:57:25,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:25,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806103284] [2020-10-13 12:57:25,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:26,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:26,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-13 12:57:26,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:26,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-10-13 12:57:26,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:26,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:26,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 12:57:26,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:26,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:26,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:26,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:26,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:26,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:26,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:26,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:26,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:26,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:26,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-10-13 12:57:26,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-13 12:57:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:26,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:26,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:27,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-13 12:57:27,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:27,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-13 12:57:27,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:27,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:27,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:27,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-13 12:57:27,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:57:27,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:27,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:27,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:57:27,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:27,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:27,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:57:27,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:27,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:27,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:27,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:27,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:27,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:57:27,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:27,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:27,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:27,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:27,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-10-13 12:57:28,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806103284] [2020-10-13 12:57:28,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:28,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 12:57:28,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056340480] [2020-10-13 12:57:28,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 12:57:28,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:28,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 12:57:28,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-13 12:57:28,044 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 21 states. [2020-10-13 12:57:28,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:28,611 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-13 12:57:28,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:57:28,612 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 56 [2020-10-13 12:57:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:28,613 INFO L225 Difference]: With dead ends: 44 [2020-10-13 12:57:28,613 INFO L226 Difference]: Without dead ends: 40 [2020-10-13 12:57:28,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 12:57:28,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-13 12:57:28,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-13 12:57:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-13 12:57:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-10-13 12:57:28,632 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 56 [2020-10-13 12:57:28,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:28,632 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-10-13 12:57:28,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-13 12:57:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-10-13 12:57:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 12:57:28,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:28,635 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:28,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:57:28,638 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:28,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:28,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1316711615, now seen corresponding path program 8 times [2020-10-13 12:57:28,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:28,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620144225] [2020-10-13 12:57:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:28,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:28,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:29,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:29,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-13 12:57:29,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-13 12:57:29,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:29,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 12:57:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:29,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:29,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:29,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:29,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:29,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:29,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:29,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:29,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:29,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:29,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:29,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-13 12:57:30,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-13 12:57:30,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:30,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:30,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:30,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-10-13 12:57:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:30,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:30,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:30,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:30,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:30,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-13 12:57:30,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:30,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:30,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:30,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:31,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-13 12:57:31,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:31,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:31,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 12:57:31,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:31,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:31,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:31,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:31,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-13 12:57:31,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:31,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:31,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:31,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 12:57:31,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:31,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:31,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:31,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:57:31,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:31,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:31,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:31,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:31,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:31,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:57:31,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:31,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:31,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 8 proven. 128 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-13 12:57:31,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620144225] [2020-10-13 12:57:31,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:31,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-13 12:57:31,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957400078] [2020-10-13 12:57:31,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-13 12:57:31,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-13 12:57:31,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-10-13 12:57:31,681 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 23 states. [2020-10-13 12:57:32,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:32,303 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-13 12:57:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 12:57:32,303 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 62 [2020-10-13 12:57:32,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:32,304 INFO L225 Difference]: With dead ends: 47 [2020-10-13 12:57:32,305 INFO L226 Difference]: Without dead ends: 43 [2020-10-13 12:57:32,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 12:57:32,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-13 12:57:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-13 12:57:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-13 12:57:32,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-13 12:57:32,319 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 62 [2020-10-13 12:57:32,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:32,319 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-13 12:57:32,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-13 12:57:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-13 12:57:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 12:57:32,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:32,322 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:32,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:57:32,322 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:32,323 INFO L82 PathProgramCache]: Analyzing trace with hash 579248713, now seen corresponding path program 9 times [2020-10-13 12:57:32,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:32,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108358727] [2020-10-13 12:57:32,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:32,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:32,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:33,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:33,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 12:57:33,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:33,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 865 [2020-10-13 12:57:33,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:57:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 12:57:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:33,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:33,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:33,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:33,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:33,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:33,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:33,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:33,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:33,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:57:33,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-13 12:57:33,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:33,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 12:57:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:57:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:33,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:34,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-13 12:57:34,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:34,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-13 12:57:34,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:34,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:34,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:34,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:34,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:34,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-13 12:57:34,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:34,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:34,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:35,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-13 12:57:35,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:35,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:35,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-13 12:57:35,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:35,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 12:57:35,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:35,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:35,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 12:57:35,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:35,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:57:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:35,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:35,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:35,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:35,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:57:35,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:35,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:35,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 24 proven. 144 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 12:57:35,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108358727] [2020-10-13 12:57:35,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:35,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 12:57:35,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388598024] [2020-10-13 12:57:35,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 12:57:35,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:35,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 12:57:35,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2020-10-13 12:57:35,849 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 25 states. [2020-10-13 12:57:36,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:36,767 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-13 12:57:36,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 12:57:36,768 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 68 [2020-10-13 12:57:36,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:36,769 INFO L225 Difference]: With dead ends: 50 [2020-10-13 12:57:36,771 INFO L226 Difference]: Without dead ends: 46 [2020-10-13 12:57:36,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=1749, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 12:57:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-13 12:57:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-13 12:57:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-13 12:57:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-10-13 12:57:36,778 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 68 [2020-10-13 12:57:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:36,779 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-10-13 12:57:36,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 12:57:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-10-13 12:57:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 12:57:36,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:36,780 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:36,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:57:36,781 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash 418322239, now seen corresponding path program 10 times [2020-10-13 12:57:36,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:36,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139171131] [2020-10-13 12:57:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:36,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:37,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:37,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 12:57:37,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:37,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-13 12:57:37,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:57:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 12:57:37,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:37,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:37,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:37,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:37,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:37,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:37,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:57:37,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:37,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:37,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:37,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:38,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:38,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:38,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:57:38,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:38,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:38,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:57:38,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-13 12:57:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:57:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:57:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:38,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:38,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:39,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:39,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:39,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:39,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-13 12:57:39,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:39,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:39,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:39,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:39,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:39,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:39,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:39,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-13 12:57:39,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:39,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:39,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:39,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:39,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:39,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:39,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:39,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-13 12:57:39,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:39,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:39,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:39,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:39,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:40,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-13 12:57:40,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:40,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:40,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 12:57:40,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:40,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:40,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:57:40,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:40,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:40,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 12:57:40,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:40,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:40,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:57:40,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:40,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:40,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:40,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:40,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:40,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:40,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:57:40,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:40,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 20 proven. 190 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-13 12:57:40,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139171131] [2020-10-13 12:57:40,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:40,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-13 12:57:40,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940823153] [2020-10-13 12:57:40,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-13 12:57:40,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:40,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-13 12:57:40,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2020-10-13 12:57:40,729 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 27 states. [2020-10-13 12:57:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:41,586 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2020-10-13 12:57:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-13 12:57:41,586 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 74 [2020-10-13 12:57:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:41,587 INFO L225 Difference]: With dead ends: 53 [2020-10-13 12:57:41,587 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:57:41,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=2099, Unknown=0, NotChecked=0, Total=2256 [2020-10-13 12:57:41,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:57:41,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-13 12:57:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 12:57:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2020-10-13 12:57:41,597 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 74 [2020-10-13 12:57:41,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:41,601 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2020-10-13 12:57:41,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-13 12:57:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2020-10-13 12:57:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:57:41,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:41,603 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:41,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 12:57:41,604 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:41,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:41,604 INFO L82 PathProgramCache]: Analyzing trace with hash 584643913, now seen corresponding path program 11 times [2020-10-13 12:57:41,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:41,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315608102] [2020-10-13 12:57:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:41,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:41,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:57:42,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 12:57:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:42,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:42,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:42,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:42,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:42,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:42,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:43,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:43,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:57:43,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 484 [2020-10-13 12:57:43,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 49 [2020-10-13 12:57:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:43,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:57:43,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:43,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:43,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:57:43,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-10-13 12:57:43,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:57:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:57:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:43,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:57:44,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-13 12:57:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:57:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:57:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:44,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:44,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:44,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:44,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-13 12:57:44,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:44,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:44,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:44,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:44,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:44,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:44,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:44,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-13 12:57:44,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:44,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:44,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:44,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:44,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-13 12:57:44,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:44,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:44,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:44,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 12:57:44,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:44,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:44,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:44,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:44,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:45,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:45,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:45,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:45,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:45,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:45,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:45,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:45,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 12:57:45,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:45,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:45,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:45,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:45,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:45,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:45,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:45,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:45,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:45,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:45,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:45,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:45,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:57:45,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:45,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:45,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:45,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:45,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:45,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:45,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:45,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:57:45,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:45,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:45,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:45,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:45,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 18 proven. 245 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 12:57:45,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315608102] [2020-10-13 12:57:45,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:45,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 12:57:45,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359479806] [2020-10-13 12:57:45,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 12:57:45,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:45,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 12:57:45,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=808, Unknown=0, NotChecked=0, Total=870 [2020-10-13 12:57:45,488 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 30 states. [2020-10-13 12:57:46,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:46,519 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2020-10-13 12:57:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 12:57:46,519 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 80 [2020-10-13 12:57:46,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:46,521 INFO L225 Difference]: With dead ends: 56 [2020-10-13 12:57:46,521 INFO L226 Difference]: Without dead ends: 52 [2020-10-13 12:57:46,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=2556, Unknown=0, NotChecked=0, Total=2756 [2020-10-13 12:57:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-13 12:57:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-13 12:57:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-13 12:57:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2020-10-13 12:57:46,529 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 80 [2020-10-13 12:57:46,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:46,529 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2020-10-13 12:57:46,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 12:57:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2020-10-13 12:57:46,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 12:57:46,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:46,530 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:46,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 12:57:46,530 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash -195309121, now seen corresponding path program 12 times [2020-10-13 12:57:46,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:46,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216593652] [2020-10-13 12:57:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:46,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:48,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:48,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:57:48,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:48,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1475 [2020-10-13 12:57:48,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 12:57:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:48,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 12:57:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:48,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:48,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:48,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:48,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:48,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:48,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:48,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:48,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:48,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:48,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:48,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:57:48,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-13 12:57:48,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 53 [2020-10-13 12:57:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 12:57:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:48,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:48,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:49,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:49,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:57:49,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:57:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:49,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:57:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:49,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:57:49,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:49,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:49,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:49,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:49,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:57:49,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:49,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:50,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:50,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-13 12:57:50,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:50,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:50,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:50,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:50,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 12:57:50,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:50,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:50,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:50,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:50,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 12:57:50,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:50,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:50,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:51,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:57:51,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:51,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:51,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:57:51,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:51,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:51,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:57:51,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:51,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 9 proven. 302 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-13 12:57:51,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216593652] [2020-10-13 12:57:51,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:51,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-13 12:57:51,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526808014] [2020-10-13 12:57:51,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-13 12:57:51,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:51,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-13 12:57:51,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=925, Unknown=0, NotChecked=0, Total=992 [2020-10-13 12:57:51,305 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 32 states. [2020-10-13 12:57:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:52,480 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-10-13 12:57:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-13 12:57:52,481 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 86 [2020-10-13 12:57:52,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:52,482 INFO L225 Difference]: With dead ends: 59 [2020-10-13 12:57:52,482 INFO L226 Difference]: Without dead ends: 55 [2020-10-13 12:57:52,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=2975, Unknown=0, NotChecked=0, Total=3192 [2020-10-13 12:57:52,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-13 12:57:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-13 12:57:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-13 12:57:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2020-10-13 12:57:52,490 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 86 [2020-10-13 12:57:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:52,490 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2020-10-13 12:57:52,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-13 12:57:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2020-10-13 12:57:52,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 12:57:52,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:52,491 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:52,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 12:57:52,492 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:52,492 INFO L82 PathProgramCache]: Analyzing trace with hash 498071625, now seen corresponding path program 13 times [2020-10-13 12:57:52,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:52,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332106759] [2020-10-13 12:57:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:52,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:52,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:53,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-13 12:57:53,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:53,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-13 12:57:53,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:53,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:53,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:53,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:53,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:53,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:57:53,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:53,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:53,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:53,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:53,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:53,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 57 [2020-10-13 12:57:53,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:53,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 12:57:53,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:53,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:54,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:57:54,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 12:57:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:54,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:54,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:54,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:57:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:54,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:54,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:57:55,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:57:55,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-13 12:57:55,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:57:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:57:55,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:57:55,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:57:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:57:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:55,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:57:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:57:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 12:57:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:57:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:57:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:56,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:57:56,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:57:56,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:57:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:57:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:56,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:57:56,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:57:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:57:56,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:57:56,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:57:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:57:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:56,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:57:56,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:57:56,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:57:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:57:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:57:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:56,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:56,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:56,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:57:56,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:56,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:57:56,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:57:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:56,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:57:56,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 35 proven. 280 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2020-10-13 12:57:56,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332106759] [2020-10-13 12:57:56,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:57:56,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-13 12:57:56,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63746140] [2020-10-13 12:57:56,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-13 12:57:56,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:57:56,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-13 12:57:56,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=992, Unknown=0, NotChecked=0, Total=1056 [2020-10-13 12:57:56,810 INFO L87 Difference]: Start difference. First operand 55 states and 56 transitions. Second operand 33 states. [2020-10-13 12:57:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:57:58,140 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2020-10-13 12:57:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-13 12:57:58,141 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 92 [2020-10-13 12:57:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:57:58,142 INFO L225 Difference]: With dead ends: 62 [2020-10-13 12:57:58,142 INFO L226 Difference]: Without dead ends: 58 [2020-10-13 12:57:58,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=199, Invalid=3341, Unknown=0, NotChecked=0, Total=3540 [2020-10-13 12:57:58,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-13 12:57:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-13 12:57:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-13 12:57:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-10-13 12:57:58,150 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 92 [2020-10-13 12:57:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:57:58,150 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-10-13 12:57:58,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-13 12:57:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-10-13 12:57:58,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 12:57:58,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:57:58,152 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:57:58,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 12:57:58,152 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:57:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:57:58,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1462920129, now seen corresponding path program 14 times [2020-10-13 12:57:58,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:57:58,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751525730] [2020-10-13 12:57:58,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:57:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:58,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:59,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:57:59,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-13 12:57:59,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:57:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:57:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:59,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:57:59,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:57:59,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:57:59,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:57:59,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:57:59,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:57:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:57:59,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:57:59,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:57:59,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:57:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:57:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:57:59,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 61 [2020-10-13 12:58:00,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:00,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 12:58:00,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:01,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 12:58:01,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-13 12:58:01,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-13 12:58:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:01,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 12:58:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:01,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:01,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:01,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 12:58:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:01,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:01,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:58:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:02,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:58:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:02,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:58:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:58:03,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:58:03,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-13 12:58:03,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:58:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:58:03,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-13 12:58:03,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:03,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:58:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:58:03,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:58:03,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:58:03,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:03,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:03,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:03,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:03,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:58:03,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:03,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 12:58:03,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:03,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:03,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:03,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:58:03,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:04,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:04,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:04,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:04,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:58:04,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:04,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:58:04,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:04,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:58:04,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:04,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:04,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:04,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:04,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:58:04,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:58:04,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:04,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:58:04,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:04,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:04,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:58:04,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:58:04,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:58:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:04,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:04,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:58:04,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:04,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:58:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:58:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 62 proven. 334 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-10-13 12:58:04,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751525730] [2020-10-13 12:58:04,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:04,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-13 12:58:04,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451624573] [2020-10-13 12:58:04,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-13 12:58:04,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:04,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-13 12:58:04,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=1122, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 12:58:04,492 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 35 states. [2020-10-13 12:58:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:06,021 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2020-10-13 12:58:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-13 12:58:06,021 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 98 [2020-10-13 12:58:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:06,023 INFO L225 Difference]: With dead ends: 65 [2020-10-13 12:58:06,023 INFO L226 Difference]: Without dead ends: 61 [2020-10-13 12:58:06,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=213, Invalid=3819, Unknown=0, NotChecked=0, Total=4032 [2020-10-13 12:58:06,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-13 12:58:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-10-13 12:58:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-13 12:58:06,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-13 12:58:06,031 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 98 [2020-10-13 12:58:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:06,032 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-13 12:58:06,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-13 12:58:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-13 12:58:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-13 12:58:06,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:06,033 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:06,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 12:58:06,033 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:06,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:06,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2044701513, now seen corresponding path program 15 times [2020-10-13 12:58:06,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:06,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987342282] [2020-10-13 12:58:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:06,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-13 12:58:07,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:07,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:07,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:58:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:07,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:08,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 12:58:08,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:08,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 776 [2020-10-13 12:58:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 65 [2020-10-13 12:58:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 12:58:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:08,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:08,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:08,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 12:58:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:08,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:08,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:09,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 590 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:09,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 12:58:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:09,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:09,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:09,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:09,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:58:09,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:09,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-10-13 12:58:09,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 12:58:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:09,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 12:58:09,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:09,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:09,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:10,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:58:10,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:10,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:10,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:10,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:10,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:58:10,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-13 12:58:10,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:58:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:58:10,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:10,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:58:11,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-13 12:58:11,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:58:11,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:58:11,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:58:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:58:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 12:58:11,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:58:11,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:11,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:11,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:58:11,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-13 12:58:11,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:58:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:11,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:11,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:58:12,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:58:12,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:58:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:58:12,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:58:12,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:58:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:12,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:58:12,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:58:12,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:58:12,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:58:12,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:58:12,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:58:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:12,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:12,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:58:12,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:12,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:58:12,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:12,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:58:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 32 proven. 419 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-13 12:58:12,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987342282] [2020-10-13 12:58:12,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:12,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-13 12:58:12,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471579672] [2020-10-13 12:58:12,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-13 12:58:12,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:12,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-13 12:58:12,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1327, Unknown=0, NotChecked=0, Total=1406 [2020-10-13 12:58:12,608 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 38 states. [2020-10-13 12:58:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:14,321 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2020-10-13 12:58:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-13 12:58:14,324 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 104 [2020-10-13 12:58:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:14,325 INFO L225 Difference]: With dead ends: 68 [2020-10-13 12:58:14,325 INFO L226 Difference]: Without dead ends: 64 [2020-10-13 12:58:14,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=265, Invalid=4427, Unknown=0, NotChecked=0, Total=4692 [2020-10-13 12:58:14,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-13 12:58:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-13 12:58:14,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-13 12:58:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2020-10-13 12:58:14,332 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 104 [2020-10-13 12:58:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:14,332 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2020-10-13 12:58:14,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-13 12:58:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2020-10-13 12:58:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-13 12:58:14,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:58:14,334 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:58:14,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 12:58:14,334 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:58:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:58:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash -514820417, now seen corresponding path program 16 times [2020-10-13 12:58:14,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:58:14,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634874755] [2020-10-13 12:58:14,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:58:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:14,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:15,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:15,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:58:15,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:58:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-13 12:58:15,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 70 [2020-10-13 12:58:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 12:58:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-13 12:58:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:58:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:15,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:58:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:15,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:58:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:58:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:15,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:16,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 12:58:16,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-13 12:58:16,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:16,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 69 [2020-10-13 12:58:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-13 12:58:16,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:16,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:16,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 66 [2020-10-13 12:58:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:17,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-13 12:58:17,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:17,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 62 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-13 12:58:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 639 [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:18,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 58 [2020-10-13 12:58:18,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:18,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-13 12:58:18,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:18,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:18,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:19,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:19,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 12:58:19,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-10-13 12:58:19,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 12:58:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:19,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-13 12:58:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:19,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:19,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:19,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-13 12:58:19,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:19,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-13 12:58:19,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 50 [2020-10-13 12:58:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:19,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:58:19,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:19,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:19,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-13 12:58:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 12:58:20,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:20,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:20,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:20,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:20,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:20,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:58:20,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:20,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 12:58:21,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 12:58:21,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 12:58:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:58:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 12:58:21,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 12:58:21,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-13 12:58:21,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 12:58:21,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:58:21,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-13 12:58:21,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:58:21,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:21,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 12:58:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 12:58:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-13 12:58:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 12:58:21,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:21,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:21,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:21,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:21,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:21,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:58:21,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:22,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:58:22,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 12:58:22,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 12:58:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 12:58:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:58:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 12:58:22,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:58:22,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:58:22,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 12:58:22,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:22,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:58:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:58:22,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:58:22,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:58:22,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:58:22,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:58:22,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:58:22,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:58:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:58:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:58:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:58:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:58:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 288 proven. 164 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2020-10-13 12:58:22,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634874755] [2020-10-13 12:58:22,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:58:22,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-13 12:58:22,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060487006] [2020-10-13 12:58:22,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-13 12:58:22,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:58:22,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-13 12:58:22,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2020-10-13 12:58:22,485 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 40 states. [2020-10-13 12:58:24,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:58:24,153 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-13 12:58:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-13 12:58:24,153 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 110 [2020-10-13 12:58:24,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:58:24,154 INFO L225 Difference]: With dead ends: 64 [2020-10-13 12:58:24,154 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 12:58:24,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 26 SyntacticMatches, 9 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=897, Invalid=4359, Unknown=0, NotChecked=0, Total=5256 [2020-10-13 12:58:24,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 12:58:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 12:58:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 12:58:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 12:58:24,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2020-10-13 12:58:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:58:24,158 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 12:58:24,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-13 12:58:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 12:58:24,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 12:58:24,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 12:58:24,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 12:58:24,206 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-13 12:58:24,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 12:58:24,207 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-10-13 12:58:24,207 INFO L268 CegarLoopResult]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2020-10-13 12:58:24,207 INFO L271 CegarLoopResult]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2020-10-13 12:58:24,207 INFO L268 CegarLoopResult]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2020-10-13 12:58:24,207 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (<= |hanoi_#in~n| hanoi_~n) (<= hanoi_~n |hanoi_#in~n|)) [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 12:58:24,208 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L268 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-10-13 12:58:24,208 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 35) the Hoare annotation is: true [2020-10-13 12:58:24,209 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-10-13 12:58:24,209 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-13 12:58:24,209 INFO L268 CegarLoopResult]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-10-13 12:58:24,209 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 35) no Hoare annotation was computed. [2020-10-13 12:58:24,209 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 35) no Hoare annotation was computed. [2020-10-13 12:58:24,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:58:24 BoogieIcfgContainer [2020-10-13 12:58:24,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:58:24,226 INFO L168 Benchmark]: Toolchain (without parser) took 68187.76 ms. Allocated memory was 150.5 MB in the beginning and 871.9 MB in the end (delta: 721.4 MB). Free memory was 105.6 MB in the beginning and 362.5 MB in the end (delta: -257.0 MB). Peak memory consumption was 464.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,227 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 150.5 MB. Free memory was 123.7 MB in the beginning and 123.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.92 ms. Allocated memory is still 150.5 MB. Free memory was 105.1 MB in the beginning and 96.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,233 INFO L168 Benchmark]: Boogie Preprocessor took 110.89 ms. Allocated memory was 150.5 MB in the beginning and 206.6 MB in the end (delta: 56.1 MB). Free memory was 96.0 MB in the beginning and 185.4 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,233 INFO L168 Benchmark]: RCFGBuilder took 228.38 ms. Allocated memory is still 206.6 MB. Free memory was 185.4 MB in the beginning and 174.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,236 INFO L168 Benchmark]: TraceAbstraction took 67593.22 ms. Allocated memory was 206.6 MB in the beginning and 871.9 MB in the end (delta: 665.3 MB). Free memory was 173.1 MB in the beginning and 362.5 MB in the end (delta: -189.4 MB). Peak memory consumption was 475.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:58:24,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 150.5 MB. Free memory was 123.7 MB in the beginning and 123.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.92 ms. Allocated memory is still 150.5 MB. Free memory was 105.1 MB in the beginning and 96.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.89 ms. Allocated memory was 150.5 MB in the beginning and 206.6 MB in the end (delta: 56.1 MB). Free memory was 96.0 MB in the beginning and 185.4 MB in the end (delta: -89.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.38 ms. Allocated memory is still 206.6 MB. Free memory was 185.4 MB in the beginning and 174.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 67593.22 ms. Allocated memory was 206.6 MB in the beginning and 871.9 MB in the end (delta: 665.3 MB). Free memory was 173.1 MB in the beginning and 362.5 MB in the end (delta: -189.4 MB). Peak memory consumption was 475.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 67.4s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 345 SDtfs, 268 SDslu, 5724 SDs, 0 SdLazy, 8716 SolverSat, 238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 986 GetRequests, 327 SyntacticMatches, 11 SemanticMatches, 648 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3387 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 53.2s InterpolantComputationTime, 1054 NumberOfCodeBlocks, 1054 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1037 ConstructedInterpolants, 0 QuantifiedInterpolants, 357260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2150/4624 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 correct! Received shutdown request...