/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:25:57,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:25:57,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:25:57,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:25:57,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:25:57,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:25:57,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:25:57,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:25:57,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:25:57,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:25:57,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:25:57,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:25:57,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:25:57,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:25:57,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:25:57,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:25:57,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:25:57,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:25:57,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:25:57,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:25:57,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:25:57,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:25:57,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:25:57,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:25:57,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:25:57,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:25:57,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:25:57,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:25:57,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:25:57,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:25:57,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:25:57,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:25:57,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:25:57,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:25:57,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:25:57,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:25:57,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:25:57,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:25:57,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:25:57,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:25:57,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:25:57,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 14:25:57,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:25:57,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:25:57,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:25:57,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:25:57,799 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:25:57,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:25:57,800 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:25:57,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:25:57,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:25:57,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:25:57,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:25:57,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:25:57,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:25:57,801 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:25:57,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:25:57,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:25:57,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:25:57,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:25:57,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:25:57,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:25:57,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:25:57,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:25:57,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:25:57,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:25:57,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:25:57,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:25:57,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:25:57,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:25:57,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:25:57,804 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:25:58,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:25:58,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:25:58,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:25:58,159 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:25:58,160 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:25:58,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label13.c [2020-10-12 14:25:58,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/788abe3e1/dd1b50f6ea5549159f0eefe48a920741/FLAG3184780d3 [2020-10-12 14:25:59,000 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:25:59,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label13.c [2020-10-12 14:25:59,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/788abe3e1/dd1b50f6ea5549159f0eefe48a920741/FLAG3184780d3 [2020-10-12 14:25:59,122 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/788abe3e1/dd1b50f6ea5549159f0eefe48a920741 [2020-10-12 14:25:59,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:25:59,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:25:59,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:25:59,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:25:59,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:25:59,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:25:59" (1/1) ... [2020-10-12 14:25:59,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5301fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:25:59, skipping insertion in model container [2020-10-12 14:25:59,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:25:59" (1/1) ... [2020-10-12 14:25:59,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:25:59,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:26:00,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:26:00,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:26:00,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:26:00,491 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:26:00,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00 WrapperNode [2020-10-12 14:26:00,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:26:00,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:26:00,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:26:00,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:26:00,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... [2020-10-12 14:26:00,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:26:00,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:26:00,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:26:00,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:26:00,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:26:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:26:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:26:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:26:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:26:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:26:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:26:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:26:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:26:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:26:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:26:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:26:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:26:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:26:03,013 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:26:03,013 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:26:03,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:03 BoogieIcfgContainer [2020-10-12 14:26:03,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:26:03,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:26:03,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:26:03,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:26:03,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:25:59" (1/3) ... [2020-10-12 14:26:03,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a788e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:03, skipping insertion in model container [2020-10-12 14:26:03,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:00" (2/3) ... [2020-10-12 14:26:03,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a788e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:03, skipping insertion in model container [2020-10-12 14:26:03,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:03" (3/3) ... [2020-10-12 14:26:03,035 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label13.c [2020-10-12 14:26:03,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:26:03,058 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:26:03,071 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:26:03,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:26:03,095 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:26:03,096 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:26:03,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:26:03,096 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:26:03,096 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:26:03,096 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:26:03,096 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:26:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:26:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-12 14:26:03,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:03,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:03,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:03,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1029807235, now seen corresponding path program 1 times [2020-10-12 14:26:03,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:03,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519180152] [2020-10-12 14:26:03,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:03,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:03,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:03,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:26:03,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:03,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-12 14:26:03,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:03,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 14:26:03,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:26:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:03,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:03,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:03,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:03,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:03,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:26:03,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:26:03,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519180152] [2020-10-12 14:26:03,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:26:03,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:26:03,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987374379] [2020-10-12 14:26:03,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:26:03,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:03,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:26:03,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:26:03,902 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-12 14:26:07,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:07,448 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-12 14:26:07,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:26:07,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-12 14:26:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:07,499 INFO L225 Difference]: With dead ends: 1169 [2020-10-12 14:26:07,499 INFO L226 Difference]: Without dead ends: 696 [2020-10-12 14:26:07,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:26:07,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-12 14:26:07,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-12 14:26:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-12 14:26:07,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-12 14:26:07,671 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 62 [2020-10-12 14:26:07,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:07,672 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-12 14:26:07,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:26:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-12 14:26:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-12 14:26:07,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:07,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:07,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:26:07,711 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1325936016, now seen corresponding path program 1 times [2020-10-12 14:26:07,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:07,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260370921] [2020-10-12 14:26:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:08,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:08,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-12 14:26:08,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:08,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-10-12 14:26:08,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:08,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:26:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:26:08,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:08,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:08,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:08,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:26:08,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:08,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:08,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:09,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:09,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:26:09,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:09,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-12 14:26:09,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:09,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:26:09,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:26:09,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260370921] [2020-10-12 14:26:09,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:26:09,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:26:09,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492310664] [2020-10-12 14:26:09,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:26:09,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:26:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:26:09,182 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 7 states. [2020-10-12 14:26:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:13,271 INFO L93 Difference]: Finished difference Result 2088 states and 3100 transitions. [2020-10-12 14:26:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:26:13,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-10-12 14:26:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:13,284 INFO L225 Difference]: With dead ends: 2088 [2020-10-12 14:26:13,285 INFO L226 Difference]: Without dead ends: 1402 [2020-10-12 14:26:13,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:26:13,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2020-10-12 14:26:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1378. [2020-10-12 14:26:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2020-10-12 14:26:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1812 transitions. [2020-10-12 14:26:13,337 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1812 transitions. Word has length 138 [2020-10-12 14:26:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:13,338 INFO L479 AbstractCegarLoop]: Abstraction has 1378 states and 1812 transitions. [2020-10-12 14:26:13,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:26:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1812 transitions. [2020-10-12 14:26:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-12 14:26:13,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:13,345 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:13,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:26:13,345 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:13,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:13,346 INFO L82 PathProgramCache]: Analyzing trace with hash -975434304, now seen corresponding path program 1 times [2020-10-12 14:26:13,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:13,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793377084] [2020-10-12 14:26:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:13,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:14,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:15,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:15,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:17,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:17,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-10-12 14:26:17,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:26:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4468 [2020-10-12 14:26:17,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:26:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-12 14:26:17,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:17,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:17,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:17,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:17,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:17,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:26:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:18,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:18,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:18,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:18,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:18,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:26:18,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:18,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 14:26:18,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:18,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:26:18,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:18,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:26:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:18,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:18,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:18,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:18,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:18,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:26:18,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:26:18,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-12 14:26:18,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:18,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:26:18,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:18,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:26:18,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-12 14:26:19,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793377084] [2020-10-12 14:26:19,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:26:19,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:26:19,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726660428] [2020-10-12 14:26:19,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 14:26:19,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:19,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 14:26:19,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:26:19,446 INFO L87 Difference]: Start difference. First operand 1378 states and 1812 transitions. Second operand 11 states. [2020-10-12 14:26:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:27,749 INFO L93 Difference]: Finished difference Result 3959 states and 5439 transitions. [2020-10-12 14:26:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 14:26:27,750 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 225 [2020-10-12 14:26:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:27,768 INFO L225 Difference]: With dead ends: 3959 [2020-10-12 14:26:27,769 INFO L226 Difference]: Without dead ends: 2587 [2020-10-12 14:26:27,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:26:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2020-10-12 14:26:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2434. [2020-10-12 14:26:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2434 states. [2020-10-12 14:26:27,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3223 transitions. [2020-10-12 14:26:27,857 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3223 transitions. Word has length 225 [2020-10-12 14:26:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:27,858 INFO L479 AbstractCegarLoop]: Abstraction has 2434 states and 3223 transitions. [2020-10-12 14:26:27,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 14:26:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3223 transitions. [2020-10-12 14:26:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2020-10-12 14:26:27,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:27,867 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:27,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:26:27,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash -445391291, now seen corresponding path program 1 times [2020-10-12 14:26:27,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:27,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962515015] [2020-10-12 14:26:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:28,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:28,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:28,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:29,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:29,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:32,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:32,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-12 14:26:32,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:26:32,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 14:26:32,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:32,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 14:26:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 323 [2020-10-12 14:26:32,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:33,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:33,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:33,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:26:33,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:33,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:33,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:26:33,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:33,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-12 14:26:33,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:33,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:26:33,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:26:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:33,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:33,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:26:33,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:33,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-12 14:26:33,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:33,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:26:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:33,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:26:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:33,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:33,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:33,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-12 14:26:33,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:33,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-12 14:26:33,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:33,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:33,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:33,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 14:26:33,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 14:26:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 167 proven. 4 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-12 14:26:34,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962515015] [2020-10-12 14:26:34,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:26:34,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:26:34,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914883750] [2020-10-12 14:26:34,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:26:34,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:34,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:26:34,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:26:34,255 INFO L87 Difference]: Start difference. First operand 2434 states and 3223 transitions. Second operand 8 states. [2020-10-12 14:26:38,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:38,425 INFO L93 Difference]: Finished difference Result 5593 states and 7780 transitions. [2020-10-12 14:26:38,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:26:38,426 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 375 [2020-10-12 14:26:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:38,444 INFO L225 Difference]: With dead ends: 5593 [2020-10-12 14:26:38,444 INFO L226 Difference]: Without dead ends: 3165 [2020-10-12 14:26:38,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:26:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2020-10-12 14:26:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3127. [2020-10-12 14:26:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3127 states. [2020-10-12 14:26:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 4197 transitions. [2020-10-12 14:26:38,529 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 4197 transitions. Word has length 375 [2020-10-12 14:26:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:38,530 INFO L479 AbstractCegarLoop]: Abstraction has 3127 states and 4197 transitions. [2020-10-12 14:26:38,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:26:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 4197 transitions. [2020-10-12 14:26:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-12 14:26:38,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:38,539 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:38,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:26:38,540 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash -327261619, now seen corresponding path program 1 times [2020-10-12 14:26:38,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:38,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324909984] [2020-10-12 14:26:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:38,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:38,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:38,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:40,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:40,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:43,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 417 [2020-10-12 14:26:43,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:26:43,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4478 [2020-10-12 14:26:43,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:43,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:26:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:26:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:26:43,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:43,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:43,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:43,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:43,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:26:43,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:43,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:26:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:26:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 14:26:43,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:43,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:43,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:26:43,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:43,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-12 14:26:43,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:43,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:43,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:26:43,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:43,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:26:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:43,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:26:43,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:43,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 14:26:43,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:43,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:26:43,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:26:43,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:26:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:43,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:43,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:43,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:26:43,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:43,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:26:43,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:43,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:26:43,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:26:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 341 proven. 114 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-12 14:26:44,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324909984] [2020-10-12 14:26:44,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:26:44,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:26:44,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233241618] [2020-10-12 14:26:44,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:26:44,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:44,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:26:44,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:26:44,176 INFO L87 Difference]: Start difference. First operand 3127 states and 4197 transitions. Second operand 8 states. [2020-10-12 14:26:48,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:48,717 INFO L93 Difference]: Finished difference Result 6668 states and 8905 transitions. [2020-10-12 14:26:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:26:48,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 403 [2020-10-12 14:26:48,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:48,737 INFO L225 Difference]: With dead ends: 6668 [2020-10-12 14:26:48,737 INFO L226 Difference]: Without dead ends: 3171 [2020-10-12 14:26:48,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:26:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2020-10-12 14:26:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3138. [2020-10-12 14:26:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3138 states. [2020-10-12 14:26:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 3401 transitions. [2020-10-12 14:26:48,821 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 3401 transitions. Word has length 403 [2020-10-12 14:26:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:48,822 INFO L479 AbstractCegarLoop]: Abstraction has 3138 states and 3401 transitions. [2020-10-12 14:26:48,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:26:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 3401 transitions. [2020-10-12 14:26:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-10-12 14:26:48,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:48,831 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:48,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:26:48,832 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1376885796, now seen corresponding path program 1 times [2020-10-12 14:26:48,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:48,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215170202] [2020-10-12 14:26:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:48,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:52,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:53,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:53,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 420 [2020-10-12 14:26:53,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:26:53,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-12 14:26:53,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:53,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:53,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:26:53,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:53,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:53,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:53,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:53,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:53,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:53,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:26:53,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:53,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:53,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:54,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:54,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:54,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:26:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:54,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:26:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:54,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:26:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:26:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:54,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:26:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:54,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:54,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:54,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:26:54,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:54,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:26:54,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:26:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:26:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:26:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 165 proven. 190 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-12 14:26:54,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215170202] [2020-10-12 14:26:54,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:26:54,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:26:54,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675166473] [2020-10-12 14:26:54,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:26:54,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:54,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:26:54,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:26:54,376 INFO L87 Difference]: Start difference. First operand 3138 states and 3401 transitions. Second operand 7 states. [2020-10-12 14:26:59,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:59,822 INFO L93 Difference]: Finished difference Result 9410 states and 10341 transitions. [2020-10-12 14:26:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:26:59,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 406 [2020-10-12 14:26:59,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:59,850 INFO L225 Difference]: With dead ends: 9410 [2020-10-12 14:26:59,850 INFO L226 Difference]: Without dead ends: 5927 [2020-10-12 14:26:59,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:26:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5927 states. [2020-10-12 14:26:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5899. [2020-10-12 14:26:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5899 states. [2020-10-12 14:27:00,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5899 states to 5899 states and 6440 transitions. [2020-10-12 14:27:00,008 INFO L78 Accepts]: Start accepts. Automaton has 5899 states and 6440 transitions. Word has length 406 [2020-10-12 14:27:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:00,009 INFO L479 AbstractCegarLoop]: Abstraction has 5899 states and 6440 transitions. [2020-10-12 14:27:00,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5899 states and 6440 transitions. [2020-10-12 14:27:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2020-10-12 14:27:00,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:00,019 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:00,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:27:00,019 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:00,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1145470729, now seen corresponding path program 1 times [2020-10-12 14:27:00,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:00,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895323036] [2020-10-12 14:27:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:00,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:00,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:00,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:02,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:05,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:05,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 523 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:27:05,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:05,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:05,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:05,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:27:05,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:05,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:05,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:06,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 907 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:06,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:27:06,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:06,956 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-12 14:27:07,223 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2020-10-12 14:27:07,490 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2020-10-12 14:27:07,788 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-10-12 14:27:08,107 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2020-10-12 14:27:08,405 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2020-10-12 14:27:09,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-12 14:27:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:09,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:09,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:09,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:09,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:09,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:27:09,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:27:09,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:09,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:09,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-12 14:27:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:09,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:09,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:09,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:27:09,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:27:09,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:27:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 165 proven. 188 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-12 14:27:12,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895323036] [2020-10-12 14:27:12,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:12,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:27:12,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041593022] [2020-10-12 14:27:12,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:27:12,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:12,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:27:12,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:27:12,022 INFO L87 Difference]: Start difference. First operand 5899 states and 6440 transitions. Second operand 13 states. [2020-10-12 14:27:13,110 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2020-10-12 14:27:13,511 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 54 [2020-10-12 14:27:13,865 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2020-10-12 14:27:14,362 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 59 [2020-10-12 14:27:14,848 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 59 [2020-10-12 14:27:15,236 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 62 [2020-10-12 14:27:16,145 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2020-10-12 14:27:16,577 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2020-10-12 14:27:16,886 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2020-10-12 14:27:17,375 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2020-10-12 14:27:17,808 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2020-10-12 14:27:18,254 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2020-10-12 14:27:18,603 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 88 [2020-10-12 14:27:20,272 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 85 [2020-10-12 14:27:20,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:20,628 INFO L93 Difference]: Finished difference Result 11823 states and 12921 transitions. [2020-10-12 14:27:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-12 14:27:20,630 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 509 [2020-10-12 14:27:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:20,651 INFO L225 Difference]: With dead ends: 11823 [2020-10-12 14:27:20,651 INFO L226 Difference]: Without dead ends: 5838 [2020-10-12 14:27:20,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2020-10-12 14:27:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5838 states. [2020-10-12 14:27:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5838 to 5811. [2020-10-12 14:27:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5811 states. [2020-10-12 14:27:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5811 states to 5811 states and 6352 transitions. [2020-10-12 14:27:20,798 INFO L78 Accepts]: Start accepts. Automaton has 5811 states and 6352 transitions. Word has length 509 [2020-10-12 14:27:20,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:20,799 INFO L479 AbstractCegarLoop]: Abstraction has 5811 states and 6352 transitions. [2020-10-12 14:27:20,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:27:20,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5811 states and 6352 transitions. [2020-10-12 14:27:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2020-10-12 14:27:20,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:20,816 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:20,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:27:20,817 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 300637305, now seen corresponding path program 1 times [2020-10-12 14:27:20,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:20,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215700236] [2020-10-12 14:27:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:25,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:25,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 644 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:27:25,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:26,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:26,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:26,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:26,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:26,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:27:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:26,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:26,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:26,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:27:26,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:26,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:27:26,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:27:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:27:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:26,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:26,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:26,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:27:26,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:27:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:26,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:26,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:26,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 457 proven. 82 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2020-10-12 14:27:26,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215700236] [2020-10-12 14:27:26,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:26,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:27:26,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68615789] [2020-10-12 14:27:26,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:27:26,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:26,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:27:26,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:27:26,716 INFO L87 Difference]: Start difference. First operand 5811 states and 6352 transitions. Second operand 7 states. [2020-10-12 14:27:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:30,060 INFO L93 Difference]: Finished difference Result 13776 states and 15339 transitions. [2020-10-12 14:27:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:27:30,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 628 [2020-10-12 14:27:30,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:30,093 INFO L225 Difference]: With dead ends: 13776 [2020-10-12 14:27:30,093 INFO L226 Difference]: Without dead ends: 8215 [2020-10-12 14:27:30,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:27:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2020-10-12 14:27:30,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 8185. [2020-10-12 14:27:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8185 states. [2020-10-12 14:27:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8185 states to 8185 states and 8854 transitions. [2020-10-12 14:27:30,264 INFO L78 Accepts]: Start accepts. Automaton has 8185 states and 8854 transitions. Word has length 628 [2020-10-12 14:27:30,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:30,265 INFO L479 AbstractCegarLoop]: Abstraction has 8185 states and 8854 transitions. [2020-10-12 14:27:30,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:30,266 INFO L276 IsEmpty]: Start isEmpty. Operand 8185 states and 8854 transitions. [2020-10-12 14:27:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2020-10-12 14:27:30,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:30,282 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:30,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:27:30,282 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:30,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1731195540, now seen corresponding path program 1 times [2020-10-12 14:27:30,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:30,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481872391] [2020-10-12 14:27:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:30,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:31,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:31,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 740 [2020-10-12 14:27:34,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:27:34,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4144 [2020-10-12 14:27:34,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:27:34,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-12 14:27:34,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:34,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:27:34,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:34,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:27:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:27:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:27:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:35,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:27:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:35,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-12 14:27:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 329 proven. 162 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2020-10-12 14:27:35,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481872391] [2020-10-12 14:27:35,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:35,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:27:35,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771508388] [2020-10-12 14:27:35,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:27:35,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:35,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:27:35,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:27:35,479 INFO L87 Difference]: Start difference. First operand 8185 states and 8854 transitions. Second operand 7 states. [2020-10-12 14:27:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:38,751 INFO L93 Difference]: Finished difference Result 19186 states and 21034 transitions. [2020-10-12 14:27:38,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:27:38,752 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 726 [2020-10-12 14:27:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:38,785 INFO L225 Difference]: With dead ends: 19186 [2020-10-12 14:27:38,786 INFO L226 Difference]: Without dead ends: 10905 [2020-10-12 14:27:38,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:27:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10905 states. [2020-10-12 14:27:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10905 to 10554. [2020-10-12 14:27:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10554 states. [2020-10-12 14:27:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10554 states to 10554 states and 11357 transitions. [2020-10-12 14:27:39,001 INFO L78 Accepts]: Start accepts. Automaton has 10554 states and 11357 transitions. Word has length 726 [2020-10-12 14:27:39,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:39,002 INFO L479 AbstractCegarLoop]: Abstraction has 10554 states and 11357 transitions. [2020-10-12 14:27:39,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 10554 states and 11357 transitions. [2020-10-12 14:27:39,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2020-10-12 14:27:39,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:39,038 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:39,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:27:39,038 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:39,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2003060148, now seen corresponding path program 1 times [2020-10-12 14:27:39,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:39,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529152270] [2020-10-12 14:27:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:39,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:39,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:39,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:40,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:44,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-12 14:27:44,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:27:44,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:44,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:44,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:44,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:44,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:44,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:27:44,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:27:44,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:44,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:44,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:44,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:44,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:44,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:27:44,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:27:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:44,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:27:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:44,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:45,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:45,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:27:45,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:45,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:27:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:45,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:45,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:45,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:27:45,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:27:45,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:27:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:45,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-12 14:27:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:45,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:45,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:45,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:45,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:45,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:45,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-12 14:27:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:45,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:45,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:45,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:27:45,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:27:45,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:27:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:45,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 288 proven. 836 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2020-10-12 14:27:46,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529152270] [2020-10-12 14:27:46,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:46,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:27:46,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345430973] [2020-10-12 14:27:46,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:27:46,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:46,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:27:46,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:27:46,674 INFO L87 Difference]: Start difference. First operand 10554 states and 11357 transitions. Second operand 7 states. [2020-10-12 14:27:49,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:49,631 INFO L93 Difference]: Finished difference Result 20879 states and 22492 transitions. [2020-10-12 14:27:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:27:49,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 992 [2020-10-12 14:27:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:49,662 INFO L225 Difference]: With dead ends: 20879 [2020-10-12 14:27:49,662 INFO L226 Difference]: Without dead ends: 10575 [2020-10-12 14:27:49,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:27:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2020-10-12 14:27:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 10563. [2020-10-12 14:27:49,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10563 states. [2020-10-12 14:27:49,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10563 states to 10563 states and 11368 transitions. [2020-10-12 14:27:49,869 INFO L78 Accepts]: Start accepts. Automaton has 10563 states and 11368 transitions. Word has length 992 [2020-10-12 14:27:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:49,870 INFO L479 AbstractCegarLoop]: Abstraction has 10563 states and 11368 transitions. [2020-10-12 14:27:49,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 10563 states and 11368 transitions. [2020-10-12 14:27:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2020-10-12 14:27:49,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:49,902 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:49,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:27:49,902 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:49,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1807603987, now seen corresponding path program 1 times [2020-10-12 14:27:49,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:49,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708663941] [2020-10-12 14:27:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:50,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:50,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:50,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1046 [2020-10-12 14:27:55,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:27:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 14:27:55,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:27:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-12 14:27:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:55,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:27:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:27:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-12 14:27:55,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:27:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:27:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:27:55,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:27:55,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-12 14:27:55,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:55,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-12 14:27:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:55,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-12 14:27:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:56,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:56,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:27:56,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:56,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 505 proven. 465 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-10-12 14:27:56,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708663941] [2020-10-12 14:27:56,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:56,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:27:56,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073690791] [2020-10-12 14:27:56,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:27:56,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:56,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:27:56,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:27:56,977 INFO L87 Difference]: Start difference. First operand 10563 states and 11368 transitions. Second operand 7 states. [2020-10-12 14:28:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:00,718 INFO L93 Difference]: Finished difference Result 21572 states and 23269 transitions. [2020-10-12 14:28:00,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:28:00,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1026 [2020-10-12 14:28:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:00,770 INFO L225 Difference]: With dead ends: 21572 [2020-10-12 14:28:00,770 INFO L226 Difference]: Without dead ends: 11259 [2020-10-12 14:28:00,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:28:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11259 states. [2020-10-12 14:28:00,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11259 to 10238. [2020-10-12 14:28:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10238 states. [2020-10-12 14:28:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10238 states to 10238 states and 11033 transitions. [2020-10-12 14:28:01,008 INFO L78 Accepts]: Start accepts. Automaton has 10238 states and 11033 transitions. Word has length 1026 [2020-10-12 14:28:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:01,009 INFO L479 AbstractCegarLoop]: Abstraction has 10238 states and 11033 transitions. [2020-10-12 14:28:01,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 10238 states and 11033 transitions. [2020-10-12 14:28:01,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1088 [2020-10-12 14:28:01,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:01,043 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:01,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:28:01,044 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:01,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:01,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1728187020, now seen corresponding path program 1 times [2020-10-12 14:28:01,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:01,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879025766] [2020-10-12 14:28:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:01,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:01,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:01,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1107 [2020-10-12 14:28:06,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:28:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5122 [2020-10-12 14:28:06,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 676 [2020-10-12 14:28:06,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:28:06,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:06,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:06,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:06,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:28:06,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:28:06,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:06,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:06,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:28:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:06,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:28:06,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:06,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:28:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-12 14:28:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:06,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 668 [2020-10-12 14:28:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:06,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:06,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-12 14:28:06,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:28:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2020-10-12 14:28:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:07,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:07,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:28:07,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:07,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2207 backedges. 763 proven. 114 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2020-10-12 14:28:07,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879025766] [2020-10-12 14:28:07,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:07,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:07,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128747564] [2020-10-12 14:28:07,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:07,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:07,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:07,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:07,811 INFO L87 Difference]: Start difference. First operand 10238 states and 11033 transitions. Second operand 7 states. [2020-10-12 14:28:10,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:10,910 INFO L93 Difference]: Finished difference Result 23275 states and 25380 transitions. [2020-10-12 14:28:10,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:28:10,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1087 [2020-10-12 14:28:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:10,946 INFO L225 Difference]: With dead ends: 23275 [2020-10-12 14:28:10,947 INFO L226 Difference]: Without dead ends: 13287 [2020-10-12 14:28:10,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:28:10,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13287 states. [2020-10-12 14:28:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13287 to 11935. [2020-10-12 14:28:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11935 states. [2020-10-12 14:28:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11935 states to 11935 states and 13111 transitions. [2020-10-12 14:28:11,186 INFO L78 Accepts]: Start accepts. Automaton has 11935 states and 13111 transitions. Word has length 1087 [2020-10-12 14:28:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:11,188 INFO L479 AbstractCegarLoop]: Abstraction has 11935 states and 13111 transitions. [2020-10-12 14:28:11,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 11935 states and 13111 transitions. [2020-10-12 14:28:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1089 [2020-10-12 14:28:11,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:11,227 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:11,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:28:11,228 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:11,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1250905169, now seen corresponding path program 1 times [2020-10-12 14:28:11,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:11,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500585343] [2020-10-12 14:28:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:12,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:14,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:15,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:16,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:16,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1108 [2020-10-12 14:28:16,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:28:16,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-12 14:28:16,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-12 14:28:16,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 313 [2020-10-12 14:28:16,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:16,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:16,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:16,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:16,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:16,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:16,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:28:16,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:16,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:16,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:16,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:16,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:16,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:16,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:16,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:16,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:16,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:28:16,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:16,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:28:16,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:16,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:16,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:16,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:28:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:16,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:17,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:17,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:17,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:17,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:28:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:17,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:17,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:17,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:28:17,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:17,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:28:17,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:17,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:28:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:17,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:17,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:17,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:17,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:17,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-12 14:28:17,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:17,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:17,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:17,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:28:17,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:17,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-12 14:28:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:17,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:17,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:17,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:17,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-12 14:28:17,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2212 backedges. 1050 proven. 59 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2020-10-12 14:28:18,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500585343] [2020-10-12 14:28:18,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:18,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:18,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005162343] [2020-10-12 14:28:18,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:18,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:18,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:18,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:18,531 INFO L87 Difference]: Start difference. First operand 11935 states and 13111 transitions. Second operand 7 states. [2020-10-12 14:28:21,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:21,592 INFO L93 Difference]: Finished difference Result 23676 states and 26209 transitions. [2020-10-12 14:28:21,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:28:21,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1088 [2020-10-12 14:28:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:21,618 INFO L225 Difference]: With dead ends: 23676 [2020-10-12 14:28:21,619 INFO L226 Difference]: Without dead ends: 11991 [2020-10-12 14:28:21,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:28:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11991 states. [2020-10-12 14:28:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11991 to 11933. [2020-10-12 14:28:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11933 states. [2020-10-12 14:28:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11933 states to 11933 states and 12789 transitions. [2020-10-12 14:28:21,835 INFO L78 Accepts]: Start accepts. Automaton has 11933 states and 12789 transitions. Word has length 1088 [2020-10-12 14:28:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:21,837 INFO L479 AbstractCegarLoop]: Abstraction has 11933 states and 12789 transitions. [2020-10-12 14:28:21,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 11933 states and 12789 transitions. [2020-10-12 14:28:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1318 [2020-10-12 14:28:21,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:21,879 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:21,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:28:21,879 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:21,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:21,880 INFO L82 PathProgramCache]: Analyzing trace with hash 482538944, now seen corresponding path program 1 times [2020-10-12 14:28:21,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:21,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345103904] [2020-10-12 14:28:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:22,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:22,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:22,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1341 [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 967 [2020-10-12 14:28:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:28:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-12 14:28:27,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-12 14:28:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-12 14:28:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-12 14:28:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-12 14:28:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 14:28:27,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-12 14:28:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:27,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:28:27,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:27,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:28:27,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:27,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-12 14:28:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:27,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:27,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3854 backedges. 1091 proven. 109 refuted. 0 times theorem prover too weak. 2654 trivial. 0 not checked. [2020-10-12 14:28:28,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345103904] [2020-10-12 14:28:28,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:28,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:28:28,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073608377] [2020-10-12 14:28:28,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:28:28,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:28,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:28:28,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:28:28,938 INFO L87 Difference]: Start difference. First operand 11933 states and 12789 transitions. Second operand 8 states. [2020-10-12 14:28:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:33,000 INFO L93 Difference]: Finished difference Result 25984 states and 27871 transitions. [2020-10-12 14:28:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:28:33,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1317 [2020-10-12 14:28:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:33,031 INFO L225 Difference]: With dead ends: 25984 [2020-10-12 14:28:33,032 INFO L226 Difference]: Without dead ends: 14301 [2020-10-12 14:28:33,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:28:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14301 states. [2020-10-12 14:28:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14301 to 14299. [2020-10-12 14:28:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14299 states. [2020-10-12 14:28:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14299 states to 14299 states and 15267 transitions. [2020-10-12 14:28:33,279 INFO L78 Accepts]: Start accepts. Automaton has 14299 states and 15267 transitions. Word has length 1317 [2020-10-12 14:28:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:33,280 INFO L479 AbstractCegarLoop]: Abstraction has 14299 states and 15267 transitions. [2020-10-12 14:28:33,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:28:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 14299 states and 15267 transitions. [2020-10-12 14:28:33,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2020-10-12 14:28:33,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:33,322 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:33,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:28:33,323 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:33,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:33,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1389121122, now seen corresponding path program 1 times [2020-10-12 14:28:33,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:33,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661289575] [2020-10-12 14:28:33,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:33,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1406 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1079 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-12 14:28:38,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:38,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:38,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:28:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:38,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:38,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:38,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:38,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:28:38,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:38,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:28:38,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:38,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:38,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:28:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:28:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:28:39,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:28:39,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:28:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:28:39,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:28:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:28:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:28:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:39,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 14:28:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3572 backedges. 1668 proven. 10 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2020-10-12 14:28:40,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661289575] [2020-10-12 14:28:40,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:40,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:28:40,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424551206] [2020-10-12 14:28:40,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:28:40,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:40,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:28:40,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:28:40,589 INFO L87 Difference]: Start difference. First operand 14299 states and 15267 transitions. Second operand 8 states. [2020-10-12 14:28:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:45,494 INFO L93 Difference]: Finished difference Result 33444 states and 35913 transitions. [2020-10-12 14:28:45,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:28:45,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1384 [2020-10-12 14:28:45,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:45,529 INFO L225 Difference]: With dead ends: 33444 [2020-10-12 14:28:45,529 INFO L226 Difference]: Without dead ends: 17339 [2020-10-12 14:28:45,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:28:45,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17339 states. [2020-10-12 14:28:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17339 to 15291. [2020-10-12 14:28:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15291 states. [2020-10-12 14:28:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15291 states to 15291 states and 16119 transitions. [2020-10-12 14:28:45,812 INFO L78 Accepts]: Start accepts. Automaton has 15291 states and 16119 transitions. Word has length 1384 [2020-10-12 14:28:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:45,814 INFO L479 AbstractCegarLoop]: Abstraction has 15291 states and 16119 transitions. [2020-10-12 14:28:45,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:28:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 15291 states and 16119 transitions. [2020-10-12 14:28:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1565 [2020-10-12 14:28:45,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:45,863 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:45,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:28:45,864 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:45,865 INFO L82 PathProgramCache]: Analyzing trace with hash -948822592, now seen corresponding path program 1 times [2020-10-12 14:28:45,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:45,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791701319] [2020-10-12 14:28:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:46,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:46,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:47,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1590 [2020-10-12 14:28:51,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:28:51,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-12 14:28:51,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1528 [2020-10-12 14:28:51,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 14:28:51,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:51,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:28:51,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:28:51,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:28:51,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:28:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:28:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-12 14:28:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:51,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:28:51,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-12 14:28:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-12 14:28:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:51,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:28:51,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-12 14:28:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1361 [2020-10-12 14:28:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-12 14:28:52,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5090 backedges. 510 proven. 9 refuted. 0 times theorem prover too weak. 4571 trivial. 0 not checked. [2020-10-12 14:28:53,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791701319] [2020-10-12 14:28:53,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:53,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:28:53,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701535474] [2020-10-12 14:28:53,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:28:53,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:53,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:28:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:28:53,043 INFO L87 Difference]: Start difference. First operand 15291 states and 16119 transitions. Second operand 5 states. [2020-10-12 14:28:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:55,851 INFO L93 Difference]: Finished difference Result 31008 states and 32692 transitions. [2020-10-12 14:28:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:28:55,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1564 [2020-10-12 14:28:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:55,882 INFO L225 Difference]: With dead ends: 31008 [2020-10-12 14:28:55,882 INFO L226 Difference]: Without dead ends: 15628 [2020-10-12 14:28:55,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:28:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15628 states. [2020-10-12 14:28:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15628 to 15287. [2020-10-12 14:28:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15287 states. [2020-10-12 14:28:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15287 states to 15287 states and 15902 transitions. [2020-10-12 14:28:56,098 INFO L78 Accepts]: Start accepts. Automaton has 15287 states and 15902 transitions. Word has length 1564 [2020-10-12 14:28:56,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:56,100 INFO L479 AbstractCegarLoop]: Abstraction has 15287 states and 15902 transitions. [2020-10-12 14:28:56,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:28:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15287 states and 15902 transitions. [2020-10-12 14:28:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1950 [2020-10-12 14:28:56,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:56,147 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:56,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:28:56,147 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:56,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:56,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1083653341, now seen corresponding path program 1 times [2020-10-12 14:28:56,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:56,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690532514] [2020-10-12 14:28:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:56,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:57,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:57,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:01,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:01,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1979 [2020-10-12 14:29:01,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:01,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-12 14:29:01,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1160 [2020-10-12 14:29:01,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:29:01,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:01,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:01,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:01,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:01,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:01,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:01,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:01,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:01,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:29:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:29:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-12 14:29:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-12 14:29:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-12 14:29:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 14:29:02,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-12 14:29:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:02,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-12 14:29:02,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:29:02,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1361 [2020-10-12 14:29:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-12 14:29:02,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:29:02,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 336 [2020-10-12 14:29:02,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:29:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:02,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:02,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1697 [2020-10-12 14:29:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:03,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:29:03,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:03,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:05,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6892 backedges. 1684 proven. 409 refuted. 0 times theorem prover too weak. 4799 trivial. 0 not checked. [2020-10-12 14:29:05,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690532514] [2020-10-12 14:29:05,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:05,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:05,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848808668] [2020-10-12 14:29:05,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:05,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:05,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:05,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:05,105 INFO L87 Difference]: Start difference. First operand 15287 states and 15902 transitions. Second operand 7 states. [2020-10-12 14:29:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:08,775 INFO L93 Difference]: Finished difference Result 30671 states and 31921 transitions. [2020-10-12 14:29:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:29:08,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1949 [2020-10-12 14:29:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:08,801 INFO L225 Difference]: With dead ends: 30671 [2020-10-12 14:29:08,801 INFO L226 Difference]: Without dead ends: 15634 [2020-10-12 14:29:08,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:29:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15634 states. [2020-10-12 14:29:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15634 to 15626. [2020-10-12 14:29:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15626 states. [2020-10-12 14:29:09,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15626 states to 15626 states and 16236 transitions. [2020-10-12 14:29:09,017 INFO L78 Accepts]: Start accepts. Automaton has 15626 states and 16236 transitions. Word has length 1949 [2020-10-12 14:29:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:09,018 INFO L479 AbstractCegarLoop]: Abstraction has 15626 states and 16236 transitions. [2020-10-12 14:29:09,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 15626 states and 16236 transitions. [2020-10-12 14:29:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2129 [2020-10-12 14:29:09,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:09,060 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:09,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:29:09,060 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:09,061 INFO L82 PathProgramCache]: Analyzing trace with hash -975977444, now seen corresponding path program 1 times [2020-10-12 14:29:09,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:09,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156752832] [2020-10-12 14:29:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:09,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:10,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2158 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1193 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 14:29:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:14,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:14,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:14,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:29:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:14,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:14,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:29:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:29:15,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:29:15,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:29:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:29:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:29:15,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:29:15,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-12 14:29:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1181 [2020-10-12 14:29:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:15,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:15,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:29:15,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1252 [2020-10-12 14:29:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1506 [2020-10-12 14:29:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:29:15,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1671 [2020-10-12 14:29:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 14:29:15,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:29:15,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-12 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1876 [2020-10-12 14:29:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:29:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8897 backedges. 1134 proven. 274 refuted. 0 times theorem prover too weak. 7489 trivial. 0 not checked. [2020-10-12 14:29:18,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156752832] [2020-10-12 14:29:18,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:18,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:18,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672191227] [2020-10-12 14:29:18,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:18,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:18,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:18,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:18,224 INFO L87 Difference]: Start difference. First operand 15626 states and 16236 transitions. Second operand 7 states. [2020-10-12 14:29:21,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:21,846 INFO L93 Difference]: Finished difference Result 31345 states and 32578 transitions. [2020-10-12 14:29:21,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:29:21,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2128 [2020-10-12 14:29:21,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:21,871 INFO L225 Difference]: With dead ends: 31345 [2020-10-12 14:29:21,871 INFO L226 Difference]: Without dead ends: 15969 [2020-10-12 14:29:21,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:29:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15969 states. [2020-10-12 14:29:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15969 to 15628. [2020-10-12 14:29:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15628 states. [2020-10-12 14:29:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15628 states to 15628 states and 16242 transitions. [2020-10-12 14:29:22,089 INFO L78 Accepts]: Start accepts. Automaton has 15628 states and 16242 transitions. Word has length 2128 [2020-10-12 14:29:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:22,091 INFO L479 AbstractCegarLoop]: Abstraction has 15628 states and 16242 transitions. [2020-10-12 14:29:22,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 15628 states and 16242 transitions. [2020-10-12 14:29:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2230 [2020-10-12 14:29:22,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:22,148 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:22,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:29:22,148 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:22,149 INFO L82 PathProgramCache]: Analyzing trace with hash 915581362, now seen corresponding path program 1 times [2020-10-12 14:29:22,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:22,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72794669] [2020-10-12 14:29:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:22,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:23,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:23,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:23,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2257 [2020-10-12 14:29:27,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:29:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-12 14:29:27,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1079 [2020-10-12 14:29:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-12 14:29:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:27,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-12 14:29:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:28,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:28,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:29:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:28,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-12 14:29:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:28,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:28,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:29:28,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-12 14:29:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-12 14:29:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1353 [2020-10-12 14:29:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:29,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:29,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:29,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1607 [2020-10-12 14:29:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:29,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:29,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:29,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-12 14:29:29,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:29,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:29,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1772 [2020-10-12 14:29:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:29,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:29,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1977 [2020-10-12 14:29:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:29,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:29,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:29:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9007 backedges. 1696 proven. 812 refuted. 0 times theorem prover too weak. 6499 trivial. 0 not checked. [2020-10-12 14:29:32,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72794669] [2020-10-12 14:29:32,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:32,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:29:32,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30312125] [2020-10-12 14:29:32,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:29:32,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:32,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:29:32,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:29:32,958 INFO L87 Difference]: Start difference. First operand 15628 states and 16242 transitions. Second operand 8 states. [2020-10-12 14:29:38,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:38,233 INFO L93 Difference]: Finished difference Result 31686 states and 32958 transitions. [2020-10-12 14:29:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:29:38,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 2229 [2020-10-12 14:29:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:38,265 INFO L225 Difference]: With dead ends: 31686 [2020-10-12 14:29:38,265 INFO L226 Difference]: Without dead ends: 16308 [2020-10-12 14:29:38,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:29:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16308 states. [2020-10-12 14:29:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16308 to 15969. [2020-10-12 14:29:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15969 states. [2020-10-12 14:29:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15969 states to 15969 states and 16606 transitions. [2020-10-12 14:29:38,465 INFO L78 Accepts]: Start accepts. Automaton has 15969 states and 16606 transitions. Word has length 2229 [2020-10-12 14:29:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:38,466 INFO L479 AbstractCegarLoop]: Abstraction has 15969 states and 16606 transitions. [2020-10-12 14:29:38,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:29:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15969 states and 16606 transitions. [2020-10-12 14:29:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2258 [2020-10-12 14:29:38,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:38,518 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:38,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 14:29:38,518 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1158570227, now seen corresponding path program 1 times [2020-10-12 14:29:38,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:38,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588946350] [2020-10-12 14:29:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking...