/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:03:36,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:03:36,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:03:36,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:03:36,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:03:36,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:03:36,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:03:36,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:03:36,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:03:36,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:03:36,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:03:36,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:03:36,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:03:36,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:03:36,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:03:36,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:03:36,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:03:36,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:03:36,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:03:36,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:03:36,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:03:36,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:03:36,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:03:36,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:03:36,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:03:36,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:03:36,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:03:36,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:03:36,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:03:36,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:03:36,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:03:36,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:03:36,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:03:36,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:03:36,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:03:36,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:03:36,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:03:36,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:03:36,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:03:36,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:03:36,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:03:36,718 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 06:03:36,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:03:36,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:03:36,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:03:36,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:03:36,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:03:36,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:03:36,767 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:03:36,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:03:36,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:03:36,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:03:36,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:03:36,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:03:36,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:03:36,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:03:36,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:03:36,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:03:36,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:03:36,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:03:36,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:03:36,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:03:36,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:03:36,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:36,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:03:36,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:03:36,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:03:36,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:03:36,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:03:36,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:03:36,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:03:36,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:03:37,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:03:37,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:03:37,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:03:37,111 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:03:37,112 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:03:37,112 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-13 06:03:37,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d5b51a76/0713083e61a440fba46d392c58cde18c/FLAG8aa8262b7 [2020-10-13 06:03:37,775 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:03:37,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label35.c [2020-10-13 06:03:37,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d5b51a76/0713083e61a440fba46d392c58cde18c/FLAG8aa8262b7 [2020-10-13 06:03:38,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d5b51a76/0713083e61a440fba46d392c58cde18c [2020-10-13 06:03:38,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:03:38,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:03:38,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:38,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:03:38,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:03:38,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678923a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38, skipping insertion in model container [2020-10-13 06:03:38,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:03:38,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:03:38,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:38,514 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:03:38,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:38,819 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:03:38,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38 WrapperNode [2020-10-13 06:03:38,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:38,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:03:38,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:03:38,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:03:38,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... [2020-10-13 06:03:38,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:03:38,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:03:38,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:03:38,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:03:38,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:03:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:03:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:03:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:03:39,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:03:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:03:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:03:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:03:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:03:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:03:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:03:40,121 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:03:40,121 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:03:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:40 BoogieIcfgContainer [2020-10-13 06:03:40,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:03:40,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:03:40,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:03:40,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:03:40,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:03:38" (1/3) ... [2020-10-13 06:03:40,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613fea67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:40, skipping insertion in model container [2020-10-13 06:03:40,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:38" (2/3) ... [2020-10-13 06:03:40,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613fea67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:40, skipping insertion in model container [2020-10-13 06:03:40,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:40" (3/3) ... [2020-10-13 06:03:40,142 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label35.c [2020-10-13 06:03:40,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:03:40,168 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:03:40,181 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:03:40,202 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:03:40,203 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:03:40,203 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:03:40,203 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:03:40,204 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:03:40,204 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:03:40,204 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:03:40,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:03:40,224 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:03:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-13 06:03:40,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:40,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:40,236 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash 279627110, now seen corresponding path program 1 times [2020-10-13 06:03:40,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:40,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597125458] [2020-10-13 06:03:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:41,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:41,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-13 06:03:41,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1376 [2020-10-13 06:03:41,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:03:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:03:41,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:03:41,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:42,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:42,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:42,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:03:42,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:42,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:03:42,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:42,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597125458] [2020-10-13 06:03:42,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:03:42,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:03:42,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999991853] [2020-10-13 06:03:42,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:42,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:42,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:42,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:42,864 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:03:43,259 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-13 06:03:43,505 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2020-10-13 06:03:43,752 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:03:44,004 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 06:03:44,315 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:03:44,775 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2020-10-13 06:03:45,313 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2020-10-13 06:03:45,684 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2020-10-13 06:03:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:46,776 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:03:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:46,778 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 86 [2020-10-13 06:03:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:46,800 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:03:46,800 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:03:46,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:03:46,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:03:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:03:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:03:46,909 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 86 [2020-10-13 06:03:46,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:46,909 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:03:46,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:46,909 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:03:46,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 06:03:46,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:46,914 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:46,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:03:46,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:46,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:46,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1083250175, now seen corresponding path program 1 times [2020-10-13 06:03:46,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:46,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382087137] [2020-10-13 06:03:46,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:47,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:47,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 06:03:48,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:48,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1289 [2020-10-13 06:03:48,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:03:48,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:48,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:48,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:03:48,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:48,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:48,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:48,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:48,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:48,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:48,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:48,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:03:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:48,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382087137] [2020-10-13 06:03:48,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:48,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:48,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528720518] [2020-10-13 06:03:48,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:48,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:48,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:48,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:48,782 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:03:49,528 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:03:50,157 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:03:50,474 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:03:50,846 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:03:51,016 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:03:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:51,586 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:03:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:51,591 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-13 06:03:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:51,595 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:03:51,595 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:03:51,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:03:51,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:03:51,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:03:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:03:51,618 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 94 [2020-10-13 06:03:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:51,618 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:03:51,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:03:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 06:03:51,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:51,622 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:51,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:03:51,622 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:51,623 INFO L82 PathProgramCache]: Analyzing trace with hash -24478849, now seen corresponding path program 1 times [2020-10-13 06:03:51,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:51,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035505767] [2020-10-13 06:03:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:51,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:51,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 06:03:51,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:51,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 06:03:51,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:51,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:51,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:03:51,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:51,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:51,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:51,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:51,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:51,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:51,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:51,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:52,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:52,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:52,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:52,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:52,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:52,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035505767] [2020-10-13 06:03:52,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:52,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:52,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238283363] [2020-10-13 06:03:52,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:52,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:52,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:52,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:52,047 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:03:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:53,000 INFO L93 Difference]: Finished difference Result 625 states and 851 transitions. [2020-10-13 06:03:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:53,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-10-13 06:03:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:53,004 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:03:53,004 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:03:53,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:03:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:03:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-10-13 06:03:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-13 06:03:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 547 transitions. [2020-10-13 06:03:53,032 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 547 transitions. Word has length 97 [2020-10-13 06:03:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:53,032 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 547 transitions. [2020-10-13 06:03:53,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 547 transitions. [2020-10-13 06:03:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 06:03:53,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:53,036 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:53,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:03:53,036 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -579647982, now seen corresponding path program 1 times [2020-10-13 06:03:53,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:53,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209896353] [2020-10-13 06:03:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 06:03:53,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:53,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 626 [2020-10-13 06:03:53,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:53,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:03:53,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:53,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:53,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:53,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:53,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:53,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:53,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:53,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:03:53,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:53,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:03:53,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:53,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:53,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:53,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:03:53,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:53,860 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:53,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209896353] [2020-10-13 06:03:53,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:53,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:53,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065607278] [2020-10-13 06:03:53,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:53,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:53,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:53,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:53,863 INFO L87 Difference]: Start difference. First operand 415 states and 547 transitions. Second operand 7 states. [2020-10-13 06:03:55,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:55,248 INFO L93 Difference]: Finished difference Result 1068 states and 1480 transitions. [2020-10-13 06:03:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:03:55,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-13 06:03:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:55,260 INFO L225 Difference]: With dead ends: 1068 [2020-10-13 06:03:55,261 INFO L226 Difference]: Without dead ends: 719 [2020-10-13 06:03:55,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:03:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-10-13 06:03:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 693. [2020-10-13 06:03:55,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-13 06:03:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 865 transitions. [2020-10-13 06:03:55,317 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 865 transitions. Word has length 109 [2020-10-13 06:03:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:55,317 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 865 transitions. [2020-10-13 06:03:55,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 865 transitions. [2020-10-13 06:03:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-13 06:03:55,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:55,326 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:55,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:55,326 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash 528652214, now seen corresponding path program 1 times [2020-10-13 06:03:55,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:55,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762799372] [2020-10-13 06:03:55,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:58,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 06:03:59,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4070 [2020-10-13 06:03:59,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:59,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 06:03:59,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:59,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:03:59,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:59,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:03:59,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:59,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:59,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:59,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 06:03:59,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:59,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:03:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:59,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:03:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:59,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762799372] [2020-10-13 06:03:59,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:59,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:59,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107748671] [2020-10-13 06:03:59,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:59,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:59,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:59,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:59,644 INFO L87 Difference]: Start difference. First operand 693 states and 865 transitions. Second operand 7 states. [2020-10-13 06:04:01,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:01,013 INFO L93 Difference]: Finished difference Result 1759 states and 2293 transitions. [2020-10-13 06:04:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:04:01,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-13 06:04:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:01,021 INFO L225 Difference]: With dead ends: 1759 [2020-10-13 06:04:01,021 INFO L226 Difference]: Without dead ends: 993 [2020-10-13 06:04:01,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2020-10-13 06:04:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 971. [2020-10-13 06:04:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2020-10-13 06:04:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1149 transitions. [2020-10-13 06:04:01,074 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1149 transitions. Word has length 116 [2020-10-13 06:04:01,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:01,077 INFO L479 AbstractCegarLoop]: Abstraction has 971 states and 1149 transitions. [2020-10-13 06:04:01,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:01,077 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1149 transitions. [2020-10-13 06:04:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 06:04:01,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:01,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:01,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:04:01,083 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:01,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1318743683, now seen corresponding path program 1 times [2020-10-13 06:04:01,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:01,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304290196] [2020-10-13 06:04:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:01,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 06:04:02,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:02,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-10-13 06:04:02,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:02,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:04:02,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:02,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,327 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2020-10-13 06:04:03,451 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-13 06:04:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:03,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:03,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:03,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:03,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:03,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:03,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:03,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:03,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 06:04:03,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:03,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:03,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:03,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:04:03,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:04,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304290196] [2020-10-13 06:04:04,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:04,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:04,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357441891] [2020-10-13 06:04:04,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:04,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:04,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:04,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:04,111 INFO L87 Difference]: Start difference. First operand 971 states and 1149 transitions. Second operand 13 states. [2020-10-13 06:04:04,653 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:04:05,040 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-10-13 06:04:05,450 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2020-10-13 06:04:05,705 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2020-10-13 06:04:05,958 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-10-13 06:04:06,354 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2020-10-13 06:04:06,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:06,856 INFO L93 Difference]: Finished difference Result 1948 states and 2352 transitions. [2020-10-13 06:04:06,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:06,858 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 127 [2020-10-13 06:04:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:06,865 INFO L225 Difference]: With dead ends: 1948 [2020-10-13 06:04:06,865 INFO L226 Difference]: Without dead ends: 1026 [2020-10-13 06:04:06,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:06,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-13 06:04:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1014. [2020-10-13 06:04:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-13 06:04:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1201 transitions. [2020-10-13 06:04:06,909 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1201 transitions. Word has length 127 [2020-10-13 06:04:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:06,909 INFO L479 AbstractCegarLoop]: Abstraction has 1014 states and 1201 transitions. [2020-10-13 06:04:06,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1201 transitions. [2020-10-13 06:04:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-13 06:04:06,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:06,917 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:06,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:04:06,918 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:06,918 INFO L82 PathProgramCache]: Analyzing trace with hash -889403832, now seen corresponding path program 1 times [2020-10-13 06:04:06,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:06,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045564417] [2020-10-13 06:04:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:06,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:07,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 06:04:09,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:09,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2487 [2020-10-13 06:04:09,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:04:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:04:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:10,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:10,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:10,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:10,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:10,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:10,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:10,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:10,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:10,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:10,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:10,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 06:04:10,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:10,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:10,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:04:10,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:04:10,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045564417] [2020-10-13 06:04:10,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:10,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:10,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394789451] [2020-10-13 06:04:10,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:10,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:10,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:10,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:10,714 INFO L87 Difference]: Start difference. First operand 1014 states and 1201 transitions. Second operand 13 states. [2020-10-13 06:04:11,635 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:04:11,967 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:04:12,225 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:04:12,438 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:04:12,746 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:04:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:13,145 INFO L93 Difference]: Finished difference Result 2044 states and 2471 transitions. [2020-10-13 06:04:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:13,155 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 144 [2020-10-13 06:04:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:13,164 INFO L225 Difference]: With dead ends: 2044 [2020-10-13 06:04:13,164 INFO L226 Difference]: Without dead ends: 1096 [2020-10-13 06:04:13,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:13,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-10-13 06:04:13,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1084. [2020-10-13 06:04:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-10-13 06:04:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1278 transitions. [2020-10-13 06:04:13,204 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1278 transitions. Word has length 144 [2020-10-13 06:04:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:13,204 INFO L479 AbstractCegarLoop]: Abstraction has 1084 states and 1278 transitions. [2020-10-13 06:04:13,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1278 transitions. [2020-10-13 06:04:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 06:04:13,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:13,208 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:13,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:04:13,208 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:13,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1031610729, now seen corresponding path program 1 times [2020-10-13 06:04:13,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:13,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823919115] [2020-10-13 06:04:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:13,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:13,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 06:04:14,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:14,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 980 [2020-10-13 06:04:14,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:04:14,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 06:04:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:14,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:14,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:14,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:04:14,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:04:14,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:14,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823919115] [2020-10-13 06:04:14,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:14,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:04:14,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877005152] [2020-10-13 06:04:14,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:04:14,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:14,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:04:14,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:04:14,972 INFO L87 Difference]: Start difference. First operand 1084 states and 1278 transitions. Second operand 14 states. [2020-10-13 06:04:15,617 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 06:04:15,838 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:04:16,199 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:04:16,619 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:04:16,837 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:04:17,049 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 06:04:17,291 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-13 06:04:17,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:17,700 INFO L93 Difference]: Finished difference Result 2179 states and 2623 transitions. [2020-10-13 06:04:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:17,701 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-13 06:04:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:17,706 INFO L225 Difference]: With dead ends: 2179 [2020-10-13 06:04:17,706 INFO L226 Difference]: Without dead ends: 1141 [2020-10-13 06:04:17,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2020-10-13 06:04:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1135. [2020-10-13 06:04:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-10-13 06:04:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1331 transitions. [2020-10-13 06:04:17,740 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1331 transitions. Word has length 149 [2020-10-13 06:04:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:17,741 INFO L479 AbstractCegarLoop]: Abstraction has 1135 states and 1331 transitions. [2020-10-13 06:04:17,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:04:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1331 transitions. [2020-10-13 06:04:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 06:04:17,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:17,745 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, 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] [2020-10-13 06:04:17,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:04:17,745 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash 96598550, now seen corresponding path program 1 times [2020-10-13 06:04:17,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:17,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008509465] [2020-10-13 06:04:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:20,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 06:04:20,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2471 [2020-10-13 06:04:20,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:04:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:04:20,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:20,579 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-13 06:04:20,815 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:04:20,950 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:04:21,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:21,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:21,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:21,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:21,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:21,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:21,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:21,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:21,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:21,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:04:21,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:04:21,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008509465] [2020-10-13 06:04:21,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:21,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:21,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987928250] [2020-10-13 06:04:21,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:21,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:21,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:21,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:21,735 INFO L87 Difference]: Start difference. First operand 1135 states and 1331 transitions. Second operand 13 states. [2020-10-13 06:04:22,324 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:04:22,652 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:04:23,027 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:04:23,303 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:04:23,650 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:04:23,983 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:04:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:24,295 INFO L93 Difference]: Finished difference Result 2272 states and 2717 transitions. [2020-10-13 06:04:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:24,296 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 160 [2020-10-13 06:04:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:24,302 INFO L225 Difference]: With dead ends: 2272 [2020-10-13 06:04:24,303 INFO L226 Difference]: Without dead ends: 1203 [2020-10-13 06:04:24,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:04:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2020-10-13 06:04:24,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1199. [2020-10-13 06:04:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2020-10-13 06:04:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1403 transitions. [2020-10-13 06:04:24,338 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1403 transitions. Word has length 160 [2020-10-13 06:04:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:24,339 INFO L479 AbstractCegarLoop]: Abstraction has 1199 states and 1403 transitions. [2020-10-13 06:04:24,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1403 transitions. [2020-10-13 06:04:24,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-13 06:04:24,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:24,343 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, 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] [2020-10-13 06:04:24,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:04:24,344 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:24,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:24,344 INFO L82 PathProgramCache]: Analyzing trace with hash -440360730, now seen corresponding path program 1 times [2020-10-13 06:04:24,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:24,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937948035] [2020-10-13 06:04:24,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:24,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:25,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:26,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 06:04:26,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1873 [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:26,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:26,629 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:04:26,758 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-13 06:04:26,881 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-13 06:04:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:27,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:27,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:04:27,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:04:27,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:04:27,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [937948035] [2020-10-13 06:04:27,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:27,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:27,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19384609] [2020-10-13 06:04:27,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:27,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:27,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:27,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:27,443 INFO L87 Difference]: Start difference. First operand 1199 states and 1403 transitions. Second operand 13 states. [2020-10-13 06:04:28,131 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:04:28,487 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:04:28,863 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:04:29,159 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:04:29,457 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:04:29,819 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:04:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:30,138 INFO L93 Difference]: Finished difference Result 2396 states and 2853 transitions. [2020-10-13 06:04:30,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:30,139 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 163 [2020-10-13 06:04:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:30,144 INFO L225 Difference]: With dead ends: 2396 [2020-10-13 06:04:30,145 INFO L226 Difference]: Without dead ends: 1246 [2020-10-13 06:04:30,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2020-10-13 06:04:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1237. [2020-10-13 06:04:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2020-10-13 06:04:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1448 transitions. [2020-10-13 06:04:30,181 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1448 transitions. Word has length 163 [2020-10-13 06:04:30,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:30,182 INFO L479 AbstractCegarLoop]: Abstraction has 1237 states and 1448 transitions. [2020-10-13 06:04:30,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1448 transitions. [2020-10-13 06:04:30,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-13 06:04:30,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:30,185 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, 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] [2020-10-13 06:04:30,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:04:30,186 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:30,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:30,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1418496502, now seen corresponding path program 1 times [2020-10-13 06:04:30,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:30,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023962060] [2020-10-13 06:04:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:30,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:30,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:32,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 06:04:32,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1817 [2020-10-13 06:04:32,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:04:32,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:32,662 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2020-10-13 06:04:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:33,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:33,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:33,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:33,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:33,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:33,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:33,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:33,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:33,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:04:33,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:04:33,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023962060] [2020-10-13 06:04:33,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:33,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:33,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296949184] [2020-10-13 06:04:33,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:33,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:33,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:33,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:33,228 INFO L87 Difference]: Start difference. First operand 1237 states and 1448 transitions. Second operand 13 states. [2020-10-13 06:04:34,250 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:04:34,559 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-13 06:04:34,811 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-13 06:04:35,131 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:04:35,455 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2020-10-13 06:04:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:35,833 INFO L93 Difference]: Finished difference Result 2474 states and 2912 transitions. [2020-10-13 06:04:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:35,834 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 166 [2020-10-13 06:04:35,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:35,840 INFO L225 Difference]: With dead ends: 2474 [2020-10-13 06:04:35,840 INFO L226 Difference]: Without dead ends: 1286 [2020-10-13 06:04:35,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:35,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2020-10-13 06:04:35,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1282. [2020-10-13 06:04:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-10-13 06:04:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1502 transitions. [2020-10-13 06:04:35,878 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1502 transitions. Word has length 166 [2020-10-13 06:04:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:35,879 INFO L479 AbstractCegarLoop]: Abstraction has 1282 states and 1502 transitions. [2020-10-13 06:04:35,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1502 transitions. [2020-10-13 06:04:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 06:04:35,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:35,883 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:04:35,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:04:35,884 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:35,884 INFO L82 PathProgramCache]: Analyzing trace with hash -892185601, now seen corresponding path program 1 times [2020-10-13 06:04:35,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:35,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627813275] [2020-10-13 06:04:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:35,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:35,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:36,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:38,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:38,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 06:04:38,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:38,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2684 [2020-10-13 06:04:38,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:38,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:04:38,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:38,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:39,059 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:04:39,258 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:04:39,519 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-10-13 06:04:39,744 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2020-10-13 06:04:39,957 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 45 [2020-10-13 06:04:40,164 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 41 [2020-10-13 06:04:40,361 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 35 [2020-10-13 06:04:40,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:40,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:40,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:40,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:40,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:04:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:04:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:40,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:04:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:04:40,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627813275] [2020-10-13 06:04:40,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:40,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:40,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562262095] [2020-10-13 06:04:40,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:40,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:40,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:40,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:40,644 INFO L87 Difference]: Start difference. First operand 1282 states and 1502 transitions. Second operand 13 states. [2020-10-13 06:04:41,089 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:04:41,269 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:04:41,654 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:04:42,042 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:04:42,337 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-10-13 06:04:42,527 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-10-13 06:04:42,814 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2020-10-13 06:04:43,191 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-10-13 06:04:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:43,461 INFO L93 Difference]: Finished difference Result 2558 states and 3011 transitions. [2020-10-13 06:04:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:43,462 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 170 [2020-10-13 06:04:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:43,467 INFO L225 Difference]: With dead ends: 2558 [2020-10-13 06:04:43,468 INFO L226 Difference]: Without dead ends: 1325 [2020-10-13 06:04:43,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:43,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2020-10-13 06:04:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1282. [2020-10-13 06:04:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-10-13 06:04:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1502 transitions. [2020-10-13 06:04:43,507 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1502 transitions. Word has length 170 [2020-10-13 06:04:43,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:43,508 INFO L479 AbstractCegarLoop]: Abstraction has 1282 states and 1502 transitions. [2020-10-13 06:04:43,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1502 transitions. [2020-10-13 06:04:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 06:04:43,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:43,512 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:04:43,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:04:43,513 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash 201213345, now seen corresponding path program 1 times [2020-10-13 06:04:43,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:43,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889472341] [2020-10-13 06:04:43,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:43,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:43,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-13 06:04:46,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2864 [2020-10-13 06:04:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:04:46,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:04:46,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:46,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:46,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:46,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:46,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:46,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:46,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:04:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:04:47,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889472341] [2020-10-13 06:04:47,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:47,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:47,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423114847] [2020-10-13 06:04:47,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:47,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:47,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:47,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:47,050 INFO L87 Difference]: Start difference. First operand 1282 states and 1502 transitions. Second operand 13 states. [2020-10-13 06:04:48,039 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-13 06:04:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:49,129 INFO L93 Difference]: Finished difference Result 2591 states and 3055 transitions. [2020-10-13 06:04:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:04:49,136 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-10-13 06:04:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:49,143 INFO L225 Difference]: With dead ends: 2591 [2020-10-13 06:04:49,143 INFO L226 Difference]: Without dead ends: 1375 [2020-10-13 06:04:49,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:04:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2020-10-13 06:04:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1288. [2020-10-13 06:04:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2020-10-13 06:04:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1513 transitions. [2020-10-13 06:04:49,182 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1513 transitions. Word has length 176 [2020-10-13 06:04:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:49,183 INFO L479 AbstractCegarLoop]: Abstraction has 1288 states and 1513 transitions. [2020-10-13 06:04:49,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1513 transitions. [2020-10-13 06:04:49,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-13 06:04:49,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:49,188 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:49,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:04:49,188 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:49,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:49,188 INFO L82 PathProgramCache]: Analyzing trace with hash -245217271, now seen corresponding path program 1 times [2020-10-13 06:04:49,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:49,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939635924] [2020-10-13 06:04:49,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:49,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:49,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:49,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:49,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2284 [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:51,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:04:51,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:51,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:51,869 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-13 06:04:52,131 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2020-10-13 06:04:52,288 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2020-10-13 06:04:52,442 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2020-10-13 06:04:52,578 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2020-10-13 06:04:52,718 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2020-10-13 06:04:52,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:52,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:52,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:52,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:52,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:52,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:52,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:52,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:52,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:52,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:52,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:52,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:52,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:52,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:04:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 06:04:53,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939635924] [2020-10-13 06:04:53,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:53,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:53,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715533488] [2020-10-13 06:04:53,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:53,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:53,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:53,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:53,094 INFO L87 Difference]: Start difference. First operand 1288 states and 1513 transitions. Second operand 13 states. [2020-10-13 06:04:53,715 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:04:54,227 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-10-13 06:04:54,650 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-10-13 06:04:54,934 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-10-13 06:04:55,390 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2020-10-13 06:04:55,742 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2020-10-13 06:04:56,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:56,219 INFO L93 Difference]: Finished difference Result 2631 states and 3181 transitions. [2020-10-13 06:04:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 06:04:56,220 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 188 [2020-10-13 06:04:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:56,227 INFO L225 Difference]: With dead ends: 2631 [2020-10-13 06:04:56,227 INFO L226 Difference]: Without dead ends: 1375 [2020-10-13 06:04:56,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:56,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2020-10-13 06:04:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1290. [2020-10-13 06:04:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-10-13 06:04:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1515 transitions. [2020-10-13 06:04:56,266 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1515 transitions. Word has length 188 [2020-10-13 06:04:56,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:56,267 INFO L479 AbstractCegarLoop]: Abstraction has 1290 states and 1515 transitions. [2020-10-13 06:04:56,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1515 transitions. [2020-10-13 06:04:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-13 06:04:56,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:56,272 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, 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] [2020-10-13 06:04:56,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:04:56,272 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:56,273 INFO L82 PathProgramCache]: Analyzing trace with hash -667452066, now seen corresponding path program 1 times [2020-10-13 06:04:56,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:56,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588158146] [2020-10-13 06:04:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:56,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:57,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1522 [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:04:57,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:04:57,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:58,282 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-10-13 06:04:58,416 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-13 06:04:58,545 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-13 06:04:58,679 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2020-10-13 06:04:58,804 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 33 [2020-10-13 06:04:58,960 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 30 [2020-10-13 06:04:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:04:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:04:59,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588158146] [2020-10-13 06:04:59,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:59,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:59,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724617962] [2020-10-13 06:04:59,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:59,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:59,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:59,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:59,214 INFO L87 Difference]: Start difference. First operand 1290 states and 1515 transitions. Second operand 13 states. [2020-10-13 06:04:59,875 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:05:00,113 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:05:00,362 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:05:00,837 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:05:01,109 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:05:01,370 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-13 06:05:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:01,759 INFO L93 Difference]: Finished difference Result 2576 states and 3047 transitions. [2020-10-13 06:05:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:05:01,760 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2020-10-13 06:05:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:01,764 INFO L225 Difference]: With dead ends: 2576 [2020-10-13 06:05:01,765 INFO L226 Difference]: Without dead ends: 1305 [2020-10-13 06:05:01,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:05:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2020-10-13 06:05:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1303. [2020-10-13 06:05:01,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1303 states. [2020-10-13 06:05:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1532 transitions. [2020-10-13 06:05:01,804 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1532 transitions. Word has length 200 [2020-10-13 06:05:01,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:01,805 INFO L479 AbstractCegarLoop]: Abstraction has 1303 states and 1532 transitions. [2020-10-13 06:05:01,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1532 transitions. [2020-10-13 06:05:01,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-13 06:05:01,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:01,810 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:01,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:05:01,810 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:01,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1548720193, now seen corresponding path program 1 times [2020-10-13 06:05:01,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:01,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129112010] [2020-10-13 06:05:01,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:01,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:01,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:05:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:02,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:02,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:02,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:05:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:05:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:02,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:02,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:05:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:02,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:02,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:02,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:05:02,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:05:03,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129112010] [2020-10-13 06:05:03,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:03,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:03,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7804765] [2020-10-13 06:05:03,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:03,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:03,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:03,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:03,010 INFO L87 Difference]: Start difference. First operand 1303 states and 1532 transitions. Second operand 5 states. [2020-10-13 06:05:04,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:04,043 INFO L93 Difference]: Finished difference Result 2677 states and 3185 transitions. [2020-10-13 06:05:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:04,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2020-10-13 06:05:04,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:04,050 INFO L225 Difference]: With dead ends: 2677 [2020-10-13 06:05:04,050 INFO L226 Difference]: Without dead ends: 1440 [2020-10-13 06:05:04,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:04,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2020-10-13 06:05:04,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1303. [2020-10-13 06:05:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1303 states. [2020-10-13 06:05:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1498 transitions. [2020-10-13 06:05:04,113 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1498 transitions. Word has length 202 [2020-10-13 06:05:04,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:04,114 INFO L479 AbstractCegarLoop]: Abstraction has 1303 states and 1498 transitions. [2020-10-13 06:05:04,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:04,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1498 transitions. [2020-10-13 06:05:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-13 06:05:04,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:04,119 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:04,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:05:04,119 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:04,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:04,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1574490706, now seen corresponding path program 1 times [2020-10-13 06:05:04,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:04,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611862148] [2020-10-13 06:05:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-13 06:05:04,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-10-13 06:05:04,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:05:04,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:05:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:04,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:04,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:05:04,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:05:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:05:04,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:05:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:05:04,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:05:04,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-13 06:05:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:05:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 149 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-13 06:05:04,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611862148] [2020-10-13 06:05:04,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:04,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:04,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933753504] [2020-10-13 06:05:04,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:04,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:04,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:04,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:04,839 INFO L87 Difference]: Start difference. First operand 1303 states and 1498 transitions. Second operand 7 states. [2020-10-13 06:05:06,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:06,264 INFO L93 Difference]: Finished difference Result 3116 states and 3667 transitions. [2020-10-13 06:05:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:05:06,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-10-13 06:05:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:06,268 INFO L225 Difference]: With dead ends: 3116 [2020-10-13 06:05:06,268 INFO L226 Difference]: Without dead ends: 1377 [2020-10-13 06:05:06,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-13 06:05:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 827. [2020-10-13 06:05:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2020-10-13 06:05:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 901 transitions. [2020-10-13 06:05:06,292 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 901 transitions. Word has length 214 [2020-10-13 06:05:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:06,292 INFO L479 AbstractCegarLoop]: Abstraction has 827 states and 901 transitions. [2020-10-13 06:05:06,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 901 transitions. [2020-10-13 06:05:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-13 06:05:06,296 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:06,296 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:06,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:05:06,297 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:06,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1888187350, now seen corresponding path program 1 times [2020-10-13 06:05:06,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:06,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545130747] [2020-10-13 06:05:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 06:05:06,346 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 06:05:06,346 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 06:05:06,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:05:06,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:05:06 BoogieIcfgContainer [2020-10-13 06:05:06,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:05:06,390 INFO L168 Benchmark]: Toolchain (without parser) took 88359.31 ms. Allocated memory was 141.6 MB in the beginning and 1.0 GB in the end (delta: 897.6 MB). Free memory was 102.7 MB in the beginning and 432.4 MB in the end (delta: -329.7 MB). Peak memory consumption was 567.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:06,390 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 06:05:06,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.33 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 172.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:06,392 INFO L168 Benchmark]: Boogie Preprocessor took 129.54 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:06,392 INFO L168 Benchmark]: RCFGBuilder took 1179.62 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.3 MB in the beginning and 174.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:06,393 INFO L168 Benchmark]: TraceAbstraction took 86254.34 ms. Allocated memory was 237.0 MB in the beginning and 1.0 GB in the end (delta: 802.2 MB). Free memory was 174.2 MB in the beginning and 432.4 MB in the end (delta: -258.1 MB). Peak memory consumption was 544.1 MB. Max. memory is 7.1 GB. [2020-10-13 06:05:06,395 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.33 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 172.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.54 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.62 ms. Allocated memory was 206.0 MB in the beginning and 237.0 MB in the end (delta: 30.9 MB). Free memory was 167.3 MB in the beginning and 174.2 MB in the end (delta: -7.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 86254.34 ms. Allocated memory was 237.0 MB in the beginning and 1.0 GB in the end (delta: 802.2 MB). Free memory was 174.2 MB in the beginning and 432.4 MB in the end (delta: -258.1 MB). Peak memory consumption was 544.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 416]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND TRUE (((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8)) [L55] a7 = 0 [L56] a20 = 1 [L57] a21 = 1 [L58] a16 = 4 [L59] a17 = 1 [L60] a8 = 13 [L61] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1)) [L416] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 86.1s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 39.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 462 SDtfs, 6475 SDslu, 779 SDs, 0 SdLazy, 15403 SolverSat, 1057 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 143 SyntacticMatches, 13 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 28.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1303occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 1017 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 43.2s InterpolantComputationTime, 2786 NumberOfCodeBlocks, 2786 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2544 ConstructedInterpolants, 0 QuantifiedInterpolants, 5555776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 1514/1546 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...